CN208572216U

CN208572216U - Camera module array

Info

Publication number: CN208572216U
Application number: CN201820824061.3U
Authority: CN
Inventors: 田中武彦; 方银丽
Original assignee: Ningbo Sunny Opotech Co Ltd
Current assignee: Ningbo Sunny Opotech Co Ltd
Priority date: 2018-05-30
Filing date: 2018-05-30
Publication date: 2019-03-01
Anticipated expiration: 2028-05-30

Abstract

Utility model the utility model provides a kind of camera module array, it include: at least two camera modules, wherein at least one camera module has free surface lens, and the free surface lens carry out active calibration according to the received actual imaging result of sensitive chip, so that the difference of reference direction determined by the reference direction of the free surface lens and optical design is not more than 0.05 degree.The utility model can reduce the TTL of camera module by free surface lens, to for example make the TTL of wide-angle mould group and focal length mould group equal or close to equal, and then make that wide-angle and focal length form double take the photograph mould group and be easily installed into the terminal devices such as mobile phone；The utility model can also effectively improve the installation accuracy of free surface lens.

Description

Camera module array

Technical field

The utility model relates to optical image technology fields, specifically, the utility model relates to camera module arrays.

Background technique

With popularizing for mobile electronic device, the user that is used to help for being applied to mobile electronic device obtains image The relevant technologies of the camera module of (such as video or image) have obtained swift and violent development and progress, and in recent years, take the photograph As mould group is all widely used in many fields such as medical treatment, security protection, industrial production.

In order to meet the more and more extensive market demand, high pixel, small size, large aperture are that existing camera module is irreversible The development trend turned.Large aperture camera lens can bring big field angle, however, this also cause camera lens optics overall length it is elongated and view Distort larger problem for rink corner.Such as the mobile lens of 130 ° of field angles, distortion > 10%.In the field of compact sized optical device, The above problem will be protruded more, it is difficult to be solved.

On the other hand, mould group is taken the photograph to be applied to more and more in the intelligent terminals such as mobile phone more.It is in the prior art Dual camera often uses the structure composition dual camera of telephoto lens and wide-angle lens, more preferably images body to bring user It tests.Such as telephoto lens can be used as main camera to shoot photo, wide-angle lens has biggish visual field, can be used to assist The depth information of photo is calculated, to carry out subsequent image virtualization processing.

In the dual camera of wide-angle in the prior art and focal length composition, often telephoto lens has different with wide-angle lens The mechanism of cause is total high (Total Track Length, be abbreviated as TTL), and TTL can also be referred to as optics overall length sometimes.Here The end face for the lens barrel in mechanism that TTL refers to imaging surface height.The optics overall length of telephoto lens camera module is commonly greater than wide Angle mirror head camera module.On the other hand, when dual camera module group assembling, need to keep certain baseline between two camera modules (base line) distance.Parallax range refers to the distance between two optical centres of lens in stereo visual system.It needs above Asking may cause the double of this kind of wide-angle and focal length composition and takes the photograph installation of the mould group in compact mobile phone space and have difficulties.Such as it is wide Angle and the end face of telephoto lens do not flush, and result in the need for being fixed using additional bracket.Such as two Mo Zu are fixed respectively In two accommodating holes of bracket, guarantee that the optical centre of two camera modules is located in same horizontal line by bracket, with And the stabilization of parallax range.

Furthermore free form surface (FREE-FORM) technology reaches its maturity in recent years, and can get using free form surface technology is had The eyeglass of free form surface.Based on free form surface technology, can pass through Random Curved Surface Designing software in optical design will be progressive more Focus face type is machined in the front or rear surface of eyeglass, then for example, by lathe process complex surface.Currently, free form surface technology is Relatively broad application is obtained in high-end spectacle lens industry.If free surface lens to be used for the field of compact sized optical device (such as mobile phone camera module field), it will help reduce the distortion of big field angle and reduce camera module to a certain extent Optics overall length.By taking above-mentioned 130 ° of field angle mobile lens as an example, free surface lens are utilized, it is contemplated that can reduce distortion extremely 2% or less.If free surface lens are used to do common auto-focusing mould group, optics can be reduced it is always about 10%, MTF setting Evaluation promotes 8%, can reduce distortion to 1% or less.In other words, free surface lens can reduce or minimize optical system The aberration of system realizes aberration correction, reduces the function of distortion, and can also play reduces mould group optics overall length and/or modular volume Effect.

However, free form surface be it is a kind of complicated aspherical, be in most cases it is random asymmetrical, have more Fold symmetry axis.And in the field of compact sized optical device (such as mobile phone camera module field), typical optics currently on the market Camera lens is assembled by way of being embedded in piecewise.Specifically, the lens barrel that inside has step-like breasting face is prepared in advance, Then each eyeglass is embedded in the step-like breasting face on the inside of the lens barrel piecewise to obtain complete optical lens.Due to mounting process Limitation, eyeglass face type selected in lens barrel is usually the spherical surface or aspherical with rotational symmetry.If using certainly By curve lens, the packaging technology of conventional compact camera module group lens just can not be installed accurately.Because having certainly By in the optical system of curve lens, since non-rotationally-symmetric free surface lens keep its right since there is no single optical axis Claim, it is difficult to find optical center, optical axis alignment and Correction Problemss are unable to control.The eyeglass face molded dimension of camera module usually < 0.7cm, In the eyeglass installation of small size, higher installation requirement is needed, it is also desirable to more quick erectility.Problem above is all led Free surface lens are caused to be dfficult to apply to compact camera module.

Utility model content

The utility model is intended to provide a kind of solution of at least one defect that can overcome the prior art.

One aspect according to the present utility model provides a kind of camera module array, comprising: at least two camera shooting moulds Group, wherein at least one camera module has free surface lens, and the free surface lens are received according to sensitive chip Actual imaging result carry out active calibration so that the reference direction of the free surface lens is determined with optical design Reference direction difference be not more than 0.05 degree.

In one embodiment, the free surface lens are installed in optical correction's camera lens, optical correction's camera lens It include: the first lens assembly comprising at least one first eyeglass；Second lens assembly comprising the second lens barrel and be mounted on At least one second eyeglass in second lens barrel, at least one described first eyeglass and at least one described second eyeglass are total With the imageable optical system of composition；And connection medium, it is suitable for first lens assembly and second lens assembly It is fixed together；Also, have described at least one at least one described first eyeglass and at least one described second eyeglass Free surface lens.

In one embodiment, at least two camera module includes wide-angle mould group and focal length mould group, and the length Burnt mould group has optical correction's camera lens；Total high equal or both the machine of the mechanism of the wide-angle mould group and the focal length mould group The total high difference of structure is less than preset threshold value.

In one embodiment, the wide-angle mould group has optical correction's camera lens, and in the wide-angle mould group, institute Stating has at least one free surface lens at least one first eyeglass and at least one described second eyeglass.

In one embodiment, the wide-angle mould group and the focal length mould group share same wiring board.

In one embodiment, at least two camera module includes black and white mould group and colored mould group.

In one embodiment, the free surface lens have multiple functional areas, and the multiple functional areas have respectively There is different curvature.

In one embodiment, the wide-angle imaging mould group has at least one free surface lens to reduce the wide-angle The shooting of camera module distorts.

In one embodiment, the connection medium is glue material, be suitable for supporting and fixed first lens assembly and Second lens assembly, and the relative position of first lens assembly and second lens assembly is made to keep active school Relative position determined by standard.

In one embodiment, have between the axis of first lens assembly and the axis of second lens assembly The angle being not zero；And on the optical axis direction along the optical lens, first lens assembly and second mirror There is gap between head part.

In one embodiment, the number of first eyeglass is one, and first eyeglass is free surface lens.

In one embodiment, the number of at least one second eyeglass be it is multiple, and it is described at least one second There are a free surface lens in eyeglass.

In one embodiment, at least one described first eyeglass have a free surface lens, and it is described extremely There are a free surface lens in few second eyeglass.

In one embodiment, first lens assembly further includes the first lens barrel, and at least one described first mirror Piece is installed on the inside of first lens barrel.

In one embodiment, it is included with characterization for first lens assembly and/or second lens assembly The free surface lens face type directional information mark.

In one embodiment, the free surface lens have perpendicular to its thickness direction datum plane, it is described from There is reference direction, first lens assembly and/or second lens assembly in the datum plane by curve lens Mark with the reference direction is to characterize the face type directional informations of the free surface lens.

In one embodiment, the connection medium is glue material, be suitable for supporting and fixed first lens assembly and Second lens assembly, and make the reference direction of the free surface lens and benchmark side determined by optical design To difference be not more than 0.05 degree.

In one embodiment, at least two camera module includes two mutual asymmetric camera modules, described At least one of two mutual asymmetric camera modules there are free surface lens so that described two are not right mutually The total high total high difference of equal or the two mechanism of the mechanism of the camera module of title is less than preset threshold value.

In one embodiment, the front end face of described two mutual asymmetric camera modules flushes.

Another aspect according to the present utility model, additionally provides a kind of camera module array, and assemble method includes: assembling Wide-angle lens and telephoto lens；And the wide-angle lens and telephoto lens are installed on same wiring board；The wherein focal length Camera lens is optical correction's camera lens, and the assemble method of optical correction's camera lens includes: the first lens assembly for preparing to be separated from each other With the second lens assembly, wherein first lens assembly includes at least one first eyeglass, second lens assembly includes Second lens barrel and at least one second eyeglass being mounted in second lens barrel, and at least one described first eyeglass and institute Stating has at least one free surface lens at least one second eyeglass；To first lens assembly and second camera lens Component is pre-positioned, at least one described first eyeglass and at least one described second eyeglass is made to collectively form imageable light System；The relative position of first lens assembly and second lens assembly is adjusted and determined based on active calibration； And first lens assembly and second lens assembly are bonded by glue material, make first lens assembly and described Two lens assemblies are fixed and held at relative position determined by active calibration.

In one embodiment, the step of wide-angle lens and telephoto lens are installed on same wiring board packet It includes: the wide-angle lens and telephoto lens is directly adhered to the surface of the wiring board.

In one embodiment, the step of wide-angle lens and telephoto lens are installed on same wiring board packet Include: on the surface of the wiring board, installation corresponds respectively to two sensitive chips of the wide-angle lens and the telephoto lens； On the surface of the wiring board, installation or formation surround the microscope base of described two sensitive chips；And by the wide-angle lens and length Zoom lens are directly adhered to the top surface of the microscope base.

In one embodiment, in the preparation process, there is at least one freedom at least one described first eyeglass Curve lens, and also there are at least one free surface lens at least one described second eyeglass.

In one embodiment, the active calibration includes: the actual measurement resolving power according to the optical system, passes through clamping Or first lens assembly and/or second lens assembly are adsorbed, to adjust and determine first lens assembly and institute State the relative positional relationship of the second lens assembly.

In one embodiment, the active calibration further include: by adjusting first lens assembly and described second The relative positional relationship of lens assembly, to make the reference direction of the free surface lens and base determined by optical design The difference in quasi- direction is not more than 0.05 degree, wherein the reference direction is used to characterize the face type direction letter of the free surface lens Breath.

In one embodiment, the active calibration further include: along adjustment the first lens assembly of planar movement, according to institute The actual measurement resolving power for stating optical system, determine between first eyeglass and second lens assembly along the plane Relative position on moving direction, wherein the movement includes the rotation in the adjustment plane.

In one embodiment, in the active calibration step, the movement further includes flat in the adjustment plane It moves.

In one embodiment, the active calibration further include: according to the actual measurement resolving power of the optical system, adjust simultaneously Determine the angle of the axis of first lens assembly relative to the axis of second lens assembly.

In one embodiment, the active calibration further include: move institute along the direction perpendicular to the adjustment plane The first lens assembly is stated, according to the actual measurement resolving power of the optical system, determines first lens assembly and second mirror The relative position in the direction perpendicular to the adjustment plane between head part.

In one embodiment, in the preparation process, first lens assembly further includes the first lens barrel, and described At least one first eyeglass is installed on the inside of first lens barrel.

In one embodiment, in the pre-determined bit step, make first lens assembly bottom surface and second mirror There is gap between the top surface of head part；And in the adhesion step, the glue material is arranged in the gap.

Another aspect according to the present utility model additionally provides another camera module array assemble method, comprising: assembling Wide-angle mould group and focal length mould group；And be fixed together the wide-angle mould group and focal length mould group to form camera module array, and So that the angle of the wide-angle mould group and focal length mould group is within angle threshold value, and wide-angle mould group and focal length mould group interval Distance is within distance threshold；Wherein at least one of the focal length mould group and the wide-angle mould group have free-form curved mirror Piece.

In one embodiment, the focal length mould group includes telephoto lens and corresponding sensitive chip, the telephoto lens With free surface lens；In the step of assembling focal length mould group, the actual imaging knot that is exported according to the sensitive chip Fruit determines the relative position of the telephoto lens and the sensitive chip by active calibration, makes the free surface lens Reference direction and optical design determined by reference direction difference be not more than 0.05 degree, wherein the reference direction use In the face type directional information for characterizing the free surface lens.

Another aspect according to the present utility model additionally provides a kind of camera module array assemble method, comprising: be assembled to Few two camera modules, wherein at least one camera module have free surface lens；And at least two moulds group is consolidated It is scheduled on and is formed together camera module array, wherein making the folder of any two camera module at least two camera module Angle is within threshold value, and the distance at the two camera module intervals is within threshold value；It is wherein described to be assembled to two less In the step of camera module, the assembling of the camera module containing free surface lens includes: to prepare containing free surface lens Optical lens and corresponding sensitive chip；And the actual imaging exported according to the sensitive chip is as a result, by active school Standard determines the relative position of the optical lens containing free surface lens and the sensitive chip, makes described freely bent The difference of reference direction determined by the reference direction of face eyeglass and optical design is not more than 0.05 degree, wherein the benchmark Direction is used to characterize the face type directional information of the free surface lens.

Compared with prior art, the utility model has at least one following technical effect:

1, the utility model can reduce the TTL of focal length mould group by free surface lens, to make wide-angle mould group and length The TTL of burnt mould group is equal or close to equal, so that the double mould groups of taking the photograph for making that wide-angle and focal length form are easily installed to mobile phone etc. eventually In end equipment.

2, wide-angle mould group and focal length mould group can be made on same substrate by some embodiments of the utility model, and be led to The substrate is crossed to guarantee that the optical centre of two camera modules is located in same horizontal line, and parallax range is kept to stablize.

3, some embodiments of the utility model can cancel tool there are two the bracket of accommodating hole, help to save cost simultaneously Reduce processing step.

4, some embodiments of the utility model can use free surface lens and provide multiple subfunction regions, such as can So that telephoto lens can provide more preferably multiple and different depth of field region blur-free imagings to take the photograph for pair or take the photograph mould group user more Camera shooting experience.

5, free surface lens occur in lens barrel when assembling can be effectively avoided in some embodiments of the utility model The bad problem of product caused by the position inaccurate of undesirable rotation or direction of rotation.Free surface lens assembly error is outstanding It is that the susceptibility of rotation error is very high, if assembling the optical lens containing free surface lens or camera shooting based on traditional handicraft Mould group, free surface lens are easy to happen the position inaccurate of undesirable rotation or direction of rotation in lens barrel, and then cause Not the problems such as product image quality is not up to standard or even can not be imaged.And the utility model can efficiently solve the above problem.

6, some embodiments of the utility model can effectively improve free surface lens and lead in compact sized optical device The installation accuracy in domain, to improve the image quality of optical lens or camera module.

7, some embodiments of the utility model can effectively improve the optical lens containing free surface lens or camera shooting The production efficiency and promotion product yield of mould group, are suitable for producing in enormous quantities.

8, it can be effectively reduced the height of mould group in some embodiments of the utility model, help to reduce camera module The overall dimensions of array.

Detailed description of the invention

Exemplary embodiment is shown in reference attached drawing.Embodiment and attached drawing disclosed herein should be considered illustrative , and not restrictive.

Fig. 1 shows the camera module array of the utility model one embodiment；

Fig. 2A shows the camera module array of another embodiment of the utility model；

Fig. 2 B shows the camera module array of the embodiment of the utility model one deformation；

Fig. 3 A shows the camera module array in another embodiment；

Fig. 3 B shows the camera module array in another embodiment；

Fig. 4 shows the camera module array in another embodiment of the utility model；

Fig. 5 shows the schematic top plan view of the free surface lens in Fig. 4 embodiment；

Fig. 6 shows the camera module array an of comparative example；

Fig. 7 shows the diagrammatic cross-section of optical correction's camera lens 1000 of the utility model one embodiment；

Fig. 8 shows the stereoscopic schematic diagram of a free surface lens in the utility model one embodiment；

Fig. 9 shows the diagrammatic cross-section of the camera module 2000 of the utility model one embodiment；

Figure 10 shows the diagrammatic cross-section of the optical correction camera lens 1000a of another embodiment of the utility model；

Figure 11 shows the diagrammatic cross-section of the photosensory assembly 2000a of the optical correction camera lens 1000a based on Figure 10；

Figure 12 shows the diagrammatic cross-section of the optical correction camera lens 1000b of another embodiment of the utility model；

Figure 13 shows the diagrammatic cross-section of the photosensory assembly 2000b of the optical correction camera lens 1000b based on Figure 12；

Figure 14 shows the flow chart of optical correction's lens assembling method in the utility model one embodiment；

Figure 15 a shows relative position regulative mode in the active calibration in the utility model one embodiment；

Figure 15 b shows the adjusting of the rotation in the active calibration of another embodiment of the utility model；

Figure 15 c shows the phase for increasing the adjusting of the direction v, w in the active calibration of another embodiment of the utility model To position regulative mode.

Specific embodiment

Various aspects of the reference attached drawing to the application are made more detailed description by the application in order to better understand.It answers Understand, the only description to the illustrative embodiments of the application is described in detail in these, rather than limits the application in any way Range.In the specification, the identical element of identical reference numbers.Stating "and/or" includes associated institute Any and all combinations of one or more of list of items.

It should be noted that in the present specification, the first, second equal statement is only used for a feature and another feature differentiation It comes, without indicating any restrictions to feature.Therefore, discussed below without departing substantially from teachings of the present application First main body is also known as the second main body.

In the accompanying drawings, for ease of description, thickness, the size and shape of object are slightly exaggerated.Attached drawing is merely illustrative And it is and non-critical drawn to scale.

It will also be appreciated that term " comprising ", " including ", " having ", "comprising" and/or " including ", when in this theory In bright book use when indicate exist stated feature, entirety, step, operations, elements, and/or components, but do not exclude the presence of or It is attached with one or more of the other feature, entirety, step, operation, component, assembly unit and/or their combination.In addition, ought be such as When the statement of at least one of " ... " appears in after the list of listed feature, entire listed feature is modified, rather than is modified Individual component in list.In addition, when describing presently filed embodiment, use " can with " indicate " one of the application or Multiple embodiments ".Also, term " illustrative " is intended to refer to example or illustration.

As it is used in the present context, term " substantially ", " about " and similar term are used as the approximate term of table, and Be not used as the term of table degree, and be intended to illustrate by by those skilled in the art will appreciate that, measured value or calculated value In inherent variability.

Unless otherwise defined, otherwise all terms (including technical terms and scientific words) used herein all have with The application one skilled in the art's is generally understood identical meaning.It will also be appreciated that term (such as in everyday words Term defined in allusion quotation) it should be interpreted as having and their consistent meanings of meaning in the context of the relevant technologies, and It will not be explained with idealization or excessively formal sense, unless clear herein so limit.

It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

Fig. 1 shows the camera module array of the utility model one embodiment.As shown in Figure 1, the camera module array Mould group is taken the photograph to be double, including a wide-angle mould group 10 (wide-angle mould group is also known as wide-angle lens mould group sometimes herein) and one long Burnt mould group 20 (focal length mould group is also known as telephoto lens mould group sometimes herein).In the present embodiment, focal length mould group 20 has light The quasi- camera lens 1000 of school and optical correction's camera lens 1000 have at least one free surface lens 109, so that focal length mould The mechanism of group 20 total high (TTL) reduces, so keep the mechanism of the wide-angle mould group 10 and the focal length mould group 20 total high equal or The difference between the two is less than preset threshold value.Wherein, optical correction's camera lens 1000 includes: the first lens assembly 100, the second camera lens Component 200 and connection medium.Wherein, the first lens assembly 100 includes the first lens barrel 101 and is mounted on first lens barrel 101 At least one first eyeglass 102 of inside (number of the first eyeglass 102 is one in the present embodiment).Second lens assembly 200 Including the second lens barrel 201 and at least one second eyeglass 202 being mounted in second lens barrel 201 (first in the present embodiment The number of eyeglass 102 is five).At least one described first eyeglass 102 is collectively formed at least one described second eyeglass 202 Imageable optical system.Connection medium is suitable for for first lens assembly 100 and second lens assembly 200 being fixed on Together.And in the focal length mould group 20, at least one described first eyeglass 102 and at least one described second eyeglass 202 With at least one free surface lens 109.In the present embodiment, the second lens barrel 201 is mounted in the carrier of motor.Below In, optical correction's camera lens 1000 with free surface lens 109 can also be done in conjunction with other embodiments and further be introduced.

With reference to Fig. 1, the shooting area of the wide-angle mould group 10 and the focal length mould group 20 has overlapping.Reality shown in FIG. 1 It applies in example, the TTL of focal length mould group 20 can be reduced by free surface lens 109, to make wide-angle mould group 10 and focal length mould group 20 TTL is equal or close to equal, thus make that wide-angle and focal length form it is double take the photograph mould group and be easily installed to terminals such as mobile phones set In standby.For example, the present embodiment can make at the sensitivity centre of two camera modules (such as wide-angle mould group 10 and focal length mould group 20) In sustained height (referring to the height on 301 normal to a surface direction of assist side), while the light of two camera modules can also be made The height of the plane of incidence is almost the same (or can be understood as the front end face of wide-angle and telephoto lens generally within same level), To make image captured by wide-angle and telephoto lens with more consistency, so that post-processing of being more convenient for, reduces distortion.

Based on the above embodiment, it is shot using double take the photograph, depth is carried out to main shooting object (such as people and object etc.) Identification after, can be handled to obtain all kinds of particularization treated image by focal length and wide-angle image obtained again, Such as background blurring, details amplification, increase resolution and other effects.After free surface lens 109, therefore telephoto lens mould When shooting, there are the higher situations of consistency for the details of the object of shooting in the picture for group and wide-angle lens mould group.Therefore exist It, can be than the prior art more preferably in progress details supplement, the effect of pixel filling.

Further, wide-angle and the front end face of telephoto lens are located at same level (or the height basic one of light incident surface Cause), telephoto lens mould group can also be avoided to block reception of the wide-angle lens mould group to some light, therefore can be to avoid wide-angle lens The shade and light-shading effect of head mould group.Fig. 6 shows the camera module array an of comparative example.As shown in fig. 6, in the comparative example Focal length mould group 20 is apparently higher than wide-angle mould group 10, causes a part of light may can not be by light focus because of blocking for focal length mould group 20 Mould group 20 is received.

Fig. 2A shows the camera module array of another embodiment of the utility model.In the present embodiment, the wide-angle mould Group 10 and the focal length mould group 20 share same wiring board 301.Specifically, it can be installed on the surface of same wiring board 301 Correspond respectively to two sensitive chips of the wide-angle lens and the telephoto lens；It is installed on the surface of the wiring board 301 Or form the microscope base for surrounding described two sensitive chips；And the wide-angle lens and telephoto lens are directly adhered to the mirror The top surface of seat.Wide-angle mould group 10 and focal length mould group 20 are made in same wiring board 301, and (or substrate, substrate for example can be The assembly of wiring board 301 and microscope base) on, the light that two camera modules can be guaranteed by the wiring board 301 (or substrate) Center is located in same horizontal line, and parallax range is kept to stablize, and so as to cancel tool there are two the bracket of accommodating hole, has Help save cost and reduces processing step.

Fig. 2 B shows the camera module array of the embodiment of the utility model one deformation.The present embodiment is shown in Fig. 2A Bracket 900 is increased on the basis of embodiment.It may be noted that the bracket 900 only plays reinforcement effect, two camera modules mainly lead to Shared wiring board 301 (or substrate) is crossed to guarantee that the optical centre of two camera modules is located in same horizontal line, and is kept Parallax range is stablized.

It may be noted that the microscope base in Fig. 2 can be cancelled, the wide-angle lens and length in the embodiment of another deformation Zoom lens can be directly adhered to the surface of the wiring board 301.Two mirrors in the embodiment of another deformation, in Fig. 2 Seat can be replaced with integrally formed molding microscope base, which can be connected, so that structural strength is improved, thus more Guarantee that the optical centre of two camera modules is located in same horizontal line well, and parallax range is kept to stablize.

Further, Fig. 3 A shows the camera module array in another embodiment, in the embodiment, the wide-angle mould Group 10 and the focal length mould group 20 do not share same wiring board 301.The wide-angle mould group 10 and the focal length mould group 20 pass through branch Frame 900 is fixed, and makes the height of the light incident surface of two camera modules is consistent (or to can be understood as wide-angle and long lens The front end face of head is located at same level, i.e. the front end face of wide-angle and telephoto lens flushes).

Further, Fig. 3 B shows the camera module array in another embodiment, passes through freely song in the embodiment Face eyeglass reduces the TTL of focal length mould group 20, to keep wide-angle mould group 10 equal with the TTL of focal length mould group 20 or close to phase Deng.Wide-angle mould group 10 and focal length mould group 20 share same wiring board 301.The sensitivity centre of two camera modules be (sensitive chip Center) it is in sustained height (referring to the height on assist side normal to a surface direction), while the light of two camera modules is incident The height in face is almost the same (or can be understood as the front end face of wide-angle and telephoto lens generally within same level), thus Make image captured by wide-angle and telephoto lens with more consistency, so that post-processing of being more convenient for, reduces distortion.Another party Face, the camera module array is reinforced by bracket 900, so that wide-angle mould group 10 and focal length mould group 20 are more stably fixed Together.

Further, Fig. 4 shows the camera module array in another embodiment of the utility model.The length of the present embodiment In burnt mould group 20, free surface lens 109 have the first sub-light scholar functional areas 190 and the second sub- optical function area 191.Fig. 5 Show the schematic top plan view of the free surface lens in Fig. 4 embodiment.With reference to Fig. 5, the first sub- optical function area 190 and second Sub- optical function area 191 can have different face types (curvature), to obtain different functions.First is also shown in Fig. 5 The line of demarcation of sub- optical function area 190 and the second sub- optical function area 191, i.e. area limit line 192.Such as the first sub-light function Energy area 190 and the second sub- optical function area 191 can correspond to different depth of field sections, and such focal length mould group 20 can obtain simultaneously Different depth of field sections object blur-free imaging, the imaging in conjunction with wide-angle mould group 10 carries out integrated treatment, can take the photograph to be double or It takes the photograph mould group user more and more preferably camera shooting experience is provided.For example, handle by focal length and wide-angle image obtained To all kinds of particularization treated image, such as background blurring, details amplification, increase resolution and other effects.And it uses certainly After curve lens 109, when shooting, the details of the object of shooting in the picture is deposited for telephoto lens mould group and wide-angle lens mould group It, can be than the prior art more preferably in the higher advantage of consistency, therefore in progress details supplement, the effect of pixel filling.Fig. 4 In also show double baselines 800 (Base line) for taking the photograph mould group, as shown in figure 4, baseline (Base line) can also be managed here Solution is parallax range, it is the distance between the sensitivity centre of sensitive chip of two camera modules.

In one embodiment, it is seen that in such a way that free surface lens 109 are by dividing sub-light school district, by focal length end Portion molecular optics functional areas object and the more consistent figure of scene can be provided closer to the visual field of wide-angle imaging mould group As information, so as to grab user for the feature for wanting to emphasize.In the present embodiment, the first sub- optical function area 190 have the optical region and performance more different than 191st area of the second sub- optical function.In other embodiments, free surface lens 109 can be divided into more than two sub- optical function areas, and different sub- optical function areas can be with according to different design requirements There is different designs.First sub- optical function area 190, the second sub- optical function area 191 ..., visual field shared by the n-th subfunction area The ratio at angle meets following relationship.

FOV/S=(F₁+F₂+……+F_n)/(S₁+S₂+S₃+……S_n), F_iRepresent the visual field of the i-th sub- optical function area, S_i The optic zone area of the i-th sub- optical function area is represented, FOV represents total visual field, and S represents the sum of the area in optics subfunction area. Wherein i=1,2,3 ..., n.

Further, in one embodiment of the utility model, the wide-angle mould group 10 also can have the optics Calibrate camera lens 1000.

Further, in one embodiment of the utility model, the wide-angle mould group 10 can have the optics Camera lens 1000 is calibrated, and optical correction's camera lens 1000 has at least one free surface lens 109.That is, institute In the optical correction's camera lens 1000 stated, have at least one described first eyeglass 102 and at least one described second eyeglass 202 At least one free surface lens 109.Free surface lens 109 are set in wide-angle mould group, distortion can be effectively reduced.

Further, in above-described embodiment, the field angle of wide-angle lens mould group can be 60 ° -180 °.Telephoto lens mould group Field angle can be 4 ° -60 °.

One embodiment according to the present utility model additionally provides a kind of camera module array assemble method.The present embodiment Baseline (Base line) in middle image processing algorithm can be configured according to the center of actual imaging.It correspondingly, can be with The assembling that double camera modules are carried out by way of opening figure, i.e., shoot target by way of opening figure, two taken the photograph After being adjusted as tilt, shift, rotation etc. of the baseline of mould group and two camera modules, taken the photograph by two As mould group is fixed again together.Wherein tilt refers to the tilt adjustments in the direction w, v, and shift refers to the translation adjustment in the direction x, y, Rotation refers to the rotation adjustment in the direction r in adjustment plane (or datum plane).It hereinafter, can also be in conjunction with attached drawing more The adjustment in the directions such as w, v, x, y, r is introduced in detail.In the present embodiment, double methods for taking the photograph assembling include the following steps.

Step 1, wide-angle shot mould group is placed in a predetermined position, is fixed by a fixed device.Including Target is shot after wide-angle lens is opened figure, according to the more specific location information of the target in the image of shooting, by wide-angle lens Head camera module is adjusted to pre-position.

Step 2, telephoto lens camera module is placed in a predetermined position, opens figure and target is shot, according to telephoto lens The specifying information of the position of target in image captured by mould group adjusts position.

Wherein, adjustment telephoto lens mould group is relative to the position of wide-angle lens mould group to following index: telephoto lens mould group It is in preset range with the Base line of wide-angle lens mould group, the visual field of telephoto lens mould group and wide-angle lens mould group has The region of the overlapping and overlapping region is in preset regional scope, can to sum up cover for telephoto lens mould group and wide-angle lens The relative position of head mould group includes tilt, shift, rotation.

Step 3: fixed telephoto lens mould group and wide-angle lens mould group.

Wherein, fixed can be is fixed by the bracket, and can also carry out outside by the outline border of terminal and fix, can also lead to Same substrate is crossed to fix.That is the focal length and wide-angle lens mould group can be by cobasis plates or the mode of cobasis plate does not carry out It is fixed.By being provided with free surface lens 109 in this present embodiment, therefore reduce double relative height differentials for taking the photograph lens module, Thus the difference of the ttl value of two camera modules can be contracted in certain threshold range (within the scope of this it is double take the photograph the shooting of mould group will not There is above-mentioned light-shading effect), it is therefore particularly suited for the double of cobasis plate and takes the photograph.

In one embodiment, in the step 1 and step 2, wide-angle mould group and telephoto lens mould group can be replaced mutually.

It is further described through below with reference to optical correction camera lens of a series of embodiment to the utility model.

Fig. 7 shows the diagrammatic cross-section of optical correction's camera lens 1000 of the utility model one embodiment.The optics school Quasi- camera lens 1000 includes the first lens assembly 100, the second lens assembly 200 and by first lens assembly 100 and the second mirror The glue material (not shown) that head part 200 is bonded together.Wherein, the first lens assembly 100 includes the first lens barrel 101 and one A first eyeglass 102, and the first eyeglass 102 is free surface lens.Second lens assembly 200 includes the second lens barrel 201 and five A second eyeglass 202.Glue material is arranged in the gap 400 between the first lens assembly 100 and the second lens assembly 200, will First lens assembly 100 and second lens assembly 200 are fixed together.In the present embodiment, which supports and consolidates Fixed first lens assembly and second lens assembly, and make first lens assembly and second lens assembly Relative position keep active calibration determined by relative position.

In the present embodiment, free surface lens have to be processed to form complicated light based on free form surface (FREE-FORM) technology Learn surface.The complex optical surfaces can for example pass through Random Curved Surface Designing software for progressive additional face type in optical design Design on the front or rear surface of eyeglass, then for example, by refined and polished on high-precision numerically controlled lathe and etc. processing And it obtains.Fig. 8 shows the stereoscopic schematic diagram of a free surface lens in the utility model one embodiment.With reference to Fig. 8, It can be seen that free form surface is a kind of complicated aspherical, it is in most cases random asymmetrical.For free song For the eyeglass of face, there is very strong directionality in the plane perpendicular to its thickness direction.In the present embodiment, can by The active calibration stage adjusts the relative positional relationship of first lens assembly 100 and second lens assembly 200, to make The difference of the reference direction for stating free surface lens and reference direction determined by optical design is not more than 0.05 degree (wherein The reference direction is used to characterize the face type directional information of the free surface lens), then again with the glue material for being located at gap 400 First lens assembly 100 and second lens assembly 200 are supported and fix, so that 100 He of the first lens assembly The relative position of second lens assembly 200 keeps relative position determined by active calibration, to guarantee optical correction's mirror The image quality of head.

In contrast, in traditional optical correction's lens assembling technique, multiple lens sets are loaded in same lens barrel.And Non-rotationally-symmetric free surface lens do not have the symmetrical intrinsic property of optical axis, that is, cannot rely on the optical axis of eyeglass and carry out group The operation such as positioning, adjustment for loading onto, causes assembly difficulty very big, especially the free surface lens in traditional handicraft are in lens barrel Rotational positioning it is extremely difficult.In other words, the susceptibility of free surface lens assembly error especially rotation error is very high, such as Fruit assembles optical correction's camera lens or camera module containing free surface lens based on traditional handicraft, and free surface lens are in lens barrel It is inside easy to happen the position inaccurate of undesirable rotation or direction of rotation, and then causes product image quality not up to standard or even nothing The problems such as method is imaged.

Further, Fig. 9 shows the diagrammatic cross-section of the camera module 2000 of the utility model one embodiment.This is taken the photograph As mould group 2000 includes optical correction's camera lens 1000 and photosensory assembly 300 as shown in Figure 7.The photosensory assembly 300 includes line Road plate 301, is installed in assist side 301 and around the sensitive chip sensitive chip 302 in installation assist side 301 Cylindrical support body 303 and the colour filter 304 being mounted on cylindrical support body 303.Further, the second lens assembly 200 is gone back It may include motor, the second lens barrel 202 may be mounted in the carrier of motor.The top surface of the cylindrical support body 303 is installed by institute Motor is stated to which the second lens assembly 200 be fixed together with photosensory assembly 300.It is noted that the utility model its In its embodiment, motor can also be replaced by the other structures of such as cylindrical support body, or can also be cancelled and directly will Second lens barrel 201 is mounted on the top surface of cylindrical support body 303.It may be noted that the motor can also be by it in other embodiments The optical actuator of its type is replaced, such as SMA (marmem) actuator, MEMS actuator etc..Wherein, optical actuation Device refers to the device for promoting optical correction's camera lens mobile relative to sensitive chip.

Above-described embodiment can be by dropping free surface lens applied to optical correction's camera lens of small size, large aperture Low distortion, can be by reducing distortion applied to the camera module of high pixel, small size, large aperture for free surface lens； Camera module optics overall length can be reduced, to reduce the volume of camera module；Free form surface when assembling can be effectively avoided Eyeglass occur in lens barrel it is undesirable rotation or direction of rotation position inaccurate caused by the bad problem of product.

Further, in one embodiment, the gap 400 is on the optical axis direction along optical correction's camera lens Size be 30-100 μm.

Further, Figure 10 shows the section signal of the optical correction camera lens 1000a of another embodiment of the utility model Figure.As shown in Figure 10, the present embodiment is have in the second lens assembly 200 with optical correction's camera lens 1000 shown in Fig. 7 difference There are free surface lens 109.First eyeglass of the first lens assembly 100 is using conventional eyeglass.Further, Figure 11 shows base In the diagrammatic cross-section of the photosensory assembly 2000a of the optical correction camera lens 1000a of Figure 10.

Further, Figure 12 shows the section signal of the optical correction camera lens 1000b of another embodiment of the utility model Figure.As shown in figure 12, the present embodiment and optical correction's camera lens 1000 shown in Fig. 7 difference are the first lens assembly 100 and the Free surface lens 109a and 109b are respectively provided in two lens assemblies 200.Under this design, it can lead in the active calibration stage The relative position of first lens assembly 100 and second lens assembly 200 is overregulated to make free surface lens 109a Complementation is formed with the face type direction of 109b, to preferably adjust the actual imaging quality of optical system.Further, Figure 13 shows The diagrammatic cross-section of the photosensory assembly 2000b of the optical correction camera lens 1000b based on Figure 12 is gone out.Due to can be in active calibration Stage can make free song by adjusting the relative position of first lens assembly 100 and second lens assembly 200 The face type direction of face eyeglass 109a and 109b form complementation, therefore camera module 2000b can have better image quality.

It is noted that the eyeglass number of the first lens assembly and the second lens assembly can be according to need in above-described embodiment It adjusts.Such as first the number of lenses of lens assembly and the second lens assembly can be respectively two and four, can also be respectively Three and three, it can also be respectively four and two, can also be respectively five and one.The eyeglass sum of entire optical correction's camera lens can also be with Adjustment as needed, such as the eyeglass sum of optical correction's camera lens can be six, be also possible to five or seven.

It is also important to note that optical correction's camera lens of the application, lens assembly are not limited to two, such as the number of lens assembly It is also possible to the numbers for being greater than two such as three or four.It, can be by phase when the lens assembly for forming optical correction's camera lens is more than two Two adjacent lens assemblies are respectively seen as previously described first lens assembly and previously described second lens assembly.For example, When the number of the lens assembly of optical correction's camera lens is three, optical correction's camera lens may include two the first lens assemblies and be located at Second lens assembly between the two first lens assemblies, and all first eyeglasses of the two the first lens assemblies With all second eyeglasses of second lens assembly collectively form carry out active calibration can image optics system.Work as optical correction When the number of the lens assembly of camera lens is four, optical correction's camera lens may include two the first lens assemblies and two the second camera lens parts Part, and arranged from top to bottom by the order of the first lens assembly, the second lens assembly, the first lens assembly, the second lens assembly, And all second eyeglasses of all first eyeglasses of the two the first lens assemblies and two the second lens assemblies collectively form Carry out active calibration can image optics system.Suchlike other deformations no longer repeat one by one herein.

Further, Figure 14 shows the process of optical correction's lens assembling method in the utility model one embodiment Figure.With reference to Figure 14, this method comprises:

Step 10, prepare the first lens assembly being separated from each other and the second lens assembly, wherein first lens assembly Including the first lens barrel and at least one first eyeglass being mounted in first lens barrel, second lens assembly includes second Lens barrel and at least one second eyeglass being mounted in second lens barrel.Wherein, it in the first eyeglass and the second eyeglass, at least deposits In a free surface lens.

Step 20, first lens assembly and second lens assembly are pre-positioned, make it is described at least one Second eyeglass and at least one described first eyeglass collectively form imageable optical system.

Step 30, the phase of first lens assembly and second lens assembly is adjusted and determined based on active calibration To position.

Step 40, first lens assembly and second lens assembly are bonded by glue material.In this step, using admittedly The glue material of change supports and fixes first lens assembly and second lens assembly, so that first lens assembly and institute The relative position for stating the second lens assembly is maintained at through relative position determined by active calibration.

It further, in one embodiment, can be before executing step 30, in first lens assembly and described Gap between two lens assemblies carries out glue material coating, executes step 30 again then to adjust and determine the first lens assembly and the The relative position of two lens assemblies.After determining the relative position, executing step 40 solidifies glue material, to utilize cured glue Material supports first lens assembly and second lens assembly, and then makes first lens assembly and second camera lens The relative position of component is maintained at through relative position determined by active calibration.And in another embodiment, it can first hold Row step 30 is to adjust and determine the relative position of the first lens assembly and the second lens assembly.After determining the relative position, Temporarily the first lens assembly (or second lens assembly) is removed, then carries out glue material coating, then based on identified opposite position It sets and is moved back to the first lens assembly (or second lens assembly).Final curing glue material makes first lens assembly and described The relative position of two lens assemblies is maintained at through relative position determined by active calibration.

Further, active calibration described herein can be in multiple degrees of freedom to the first lens assembly and second The relative position of lens assembly is adjusted.Figure 15 a shows opposite in the active calibration in the utility model one embodiment Position regulative mode.In the regulative mode, first lens assembly (being also possible to the first eyeglass) can be relative to described Second lens assembly moves (the relative position adjustment i.e. in the embodiment has three degree of freedom) along x, y, z direction.Wherein z Direction is the direction along optical axis, and x, the direction y is the direction perpendicular to optical axis.X, the direction y is in an adjustment plane P, Two components that can be analyzed to the direction x, y are translated in adjustment plane P.

Figure 15 b shows the adjusting of the rotation in the active calibration of another embodiment of the utility model.In this embodiment, Relative position adjusts other than the three degree of freedom with Figure 15 a, also adds rotary freedom, the i.e. adjusting in the direction r.This reality It applies in example, the adjusting in the direction r is the rotation in the adjustment plane P, i.e., around the axis perpendicular to the adjustment plane P Rotation.

Further, Figure 15 c shows in the active calibration of another embodiment of the utility model and increases the direction v, w The relative position regulative mode of adjusting.Wherein, the direction v represents the rotation angle of xoz plane, and the direction w represents the rotation of yoz plane The rotation angle in angle, the direction v and the direction w can synthesize an azimuth, this azimuth represents total heeling condition.That is, Adjusted by the direction v and the direction w, adjustable first lens assembly relative to the second lens assembly lateral attitude (namely Inclination of the optical axis of first lens assembly relative to the optical axis of second lens assembly).

The adjusting of above-mentioned x, y, z, r, v, w six-freedom degree may influence the optical system image quality (such as Influence the size of resolving power).In the other embodiments of the utility model, relative position regulative mode, which can be, only to be adjusted Any one of six-freedom degree is stated, it can also wherein wantonly two or the combination of more.

Particularly, in one embodiment, the active calibration includes at least the calibration in the direction r.Specifically, the master Dynamic calibration steps (step 30) includes: that (in the utility model, resolving power can lead to according to the actual measurement resolving power of the optical system The MTF curve or SFR curve for crossing actual measurement obtain, but the method for obtaining resolving power is without being limited thereto), by clamping or adsorbing described the One lens assembly and/or second lens assembly, to adjust and determine first lens assembly and second camera lens part The relative positional relationship of part.Wherein, along adjustment the first lens assembly of planar movement, according to the actual measurement solution picture of the optical system Power determines the opposite position on the moving direction along the plane between first eyeglass and second lens assembly It sets, wherein the movement includes the rotation in the adjustment plane, i.e. movement on the direction r.In the present embodiment, described first Lens assembly and/or second lens assembly have the face type directional information for characterizing its free surface lens for being included Mark.

In one embodiment, the free surface lens have perpendicular to its thickness direction datum plane, it is described from There is reference direction, first lens assembly and/or second lens assembly in the datum plane by curve lens Mark with the reference direction is to characterize the face type directional informations of the free surface lens.Free surface lens to Rotational positioning in the datum plane is very sensitive, and in the active calibration stage, make the first lens assembly and the second camera lens part Part is relatively moved and is adjusted along the direction r, and the installation accuracy in the reference direction of free surface lens can be improved.Such as it can be with So that the difference of reference direction determined by the reference direction of the free surface lens and optical design is not more than 0.05 Degree, and then obtain small size, large aperture optical lens or the camera module with high image quality.In the present embodiment, in freedom When curve lens carry out rotation correction with respect to other camera lenses, it can acquire and obtain in real time aberration adjustment data and correct, finally So that the camera lens and/or camera module with free surface lens obtains more excellent imaging effect.By adjusting so that two Optical system composed by lens assembly is small with preferable imaging performance, such as the surrounding amount of distortion of imaging, optical system Aberration is small.The adjustment index of active calibration can different demands be configured.So that the active school of different adjustment indexs Optical lens after standard meets different optical properties.

On the other hand, pre-determined bit the stage, the mark of reference direction can help free surface lens be quickly pre-positioned to On direction determined by optical design, active accommodation is then carried out on the basis of pre-determined bit again.It will be helpful to improve light in this way Learn the production efficiency of camera lens or camera module.It in another embodiment, can also be based on machine vision technique to free form surface The face type direction of eyeglass carries out machine recognition, and the pre-determined bit in the direction r is carried out based on recognition result, then again in the base of pre-determined bit Active accommodation is carried out on plinth.

Further, in one embodiment, in active calibration step, the movement further includes in the adjustment plane Translation, i.e. movement on the direction x, y.

Further, in one embodiment, the active calibration further include: according to the actual measurement solution picture of the optical system Power adjusts and determines the angle of axis of the axis of first lens assembly relative to second lens assembly, i.e. w, the side v Upward adjusting.In the optical lens or camera module assembled, the axis of first lens assembly and second camera lens It can have the angle being not zero between the axis of component.

Further, in one embodiment, the active calibration further include: along the side perpendicular to the adjustment plane To movement first lens assembly (adjusting i.e. on the direction z), according to the actual measurement resolving power of the optical system, determine described in The relative position in the direction perpendicular to the adjustment plane between first lens assembly and second lens assembly.

Further, in one embodiment, in the pre-determined bit step (step 20), make first lens assembly There is gap between bottom surface and the top surface of second lens assembly；And in the adhesion step (step 40), the glue material It is arranged in the gap.

Further, in one embodiment, in the preparation process (step 10), first lens assembly can be with Without the first lens barrel.Such as first lens assembly can be made of single first eyeglass.Pre-determined bit step (the step 20) In, make that there is gap between the bottom surface of first eyeglass and the top surface of second lens assembly；And the adhesion step In (step 40), the glue material is arranged in the gap.In the present embodiment, the first eyeglass can form one by being fitted into mutually Multiple sub- eyeglasses formed.In the present embodiment, the side and top surface in the non-optical face for being not used in imaging of the first eyeglass can be with shapes At light shield layer.The light shield layer can be formed by the side of the first eyeglass and top surface silk-screen printing light screening material.

In one embodiment, in active calibration step, the second lens assembly can be fixed, the first mirror is clamped by fixture Head part, under the drive for six shaft movement mechanisms being connect with fixture, mobile first lens assembly, to realize the first camera lens part The relative movement under above-mentioned six-freedom degree between part and the second lens assembly.Wherein, fixture can be born against or part is held It is against the side of the first lens assembly, so that the first lens assembly be picked up.

Further, one embodiment according to the present utility model additionally provides a kind of camera module assemble method, packet It includes: using optical correction lens assembling method assembling optical correction's camera lens of aforementioned any embodiment, then utilizing and assembled Optical correction's camera lens makes camera module.

Further, another embodiment according to the present utility model additionally provides another camera module assemble method Flow chart, this method comprises:

Step 100, prepare the first lens assembly and camera module component, wherein the camera module component includes being incorporated in The second lens assembly and photosensitive mould group together, and first lens assembly includes the first lens barrel and is mounted on described first At least one first eyeglass in lens barrel, second lens assembly include the second lens barrel and are mounted in second lens barrel At least one second eyeglass.Also, at least there are a free surface lens in the first eyeglass and the second eyeglass.

Step 200, first lens assembly and second lens assembly are pre-positioned, make it is described at least one Second eyeglass and at least one described first eyeglass collectively form imageable optical system.

Step 300, first lens assembly and second lens assembly are adjusted and determined based on active calibration Relative position.

Step 400, first lens assembly and second lens assembly are bonded by glue material.

As can be seen that the second lens assembly and photosensitive mould group are first assembled in one in the present embodiment compared with previous embodiment It rises and constitutes camera module component, then camera module component and the first lens assembly are assembled again, obtain complete camera module. The process that camera module component and the first lens assembly are assembled can also there are many deformations, such as can refer to previously described light Multiple embodiments of the quasi- lens assembling method of school, the assembling of Lai Shixian camera module component and the first lens assembly.

In embodiment above, double take the photograph of wide-angle and focal length composition is only various common double one kind for taking the photograph scheme.It is double to take the photograph greatly Can have on body two kinds of " symmetrical expression " and " asymmetric ".Wherein " symmetrical expression " double mould groups of taking the photograph also refer to two camera shooting moulds Group has the size being substantially the same, such as the double of " colour+black and white " take the photograph scheme, and the focal length of two cameras is identical, and size is consistent, Sometimes the pixel size of the even sensitive chip of two camera modules is also identical.Double take the photograph has raising for image quality.It is " asymmetric Formula " is double take the photograph mould group be commonly referred to as two camera modules size it is inconsistent, can refer to that the focal length of camera is different, such as For iPhone 7Plus and LG G5.Double two taken the photograph mould groups can have the main difference taken the photograph and pair is taken the photograph, and this difference can be double It takes the photograph and brings many functions.Master takes the photograph as camera module array when being worked, and is chronically at the camera of working condition.Pair is taken the photograph can Shot for assisting for recording depth of view information.Asymmetric " is double, which to take the photograph mould group, for example " focal length+wide-angle ", " focal length+mark The different design schemes such as standard ", by taking iPhone 7Plus as an example, the camera module of wide-angle is taken the photograph as master, and main take the photograph is being shot When can shoot whole picture.Free surface lens can be used for any of the above-described kind of double mould groups of taking the photograph and (or double take the photograph comprising above-mentioned Take the photograph mould group more) in, to reduce optics overall length.Particularly, double for " asymmetric " to take the photograph mould group, one of camera module can be with Reduce the optics overall length of itself by free surface lens, so that the optics overall length of two camera modules is equal or makes the two The difference of optics overall length is less than threshold value.

Double logics of taking the photograph on the market include: that the depth of field pair is taken the photograph, and black and white+colour pair, which is taken the photograph, and double fixed-focus are double takes the photograph.Pair of these types In taking the photograph, own curve lens can be used to reduce optics overall length.It, can by the way that common eyeglass is substituted for free surface lens It is reduced with the size to camera module in camera module array (referring to the camera module containing free surface lens), to drop The overall dimensions of low camera module array.

Above description is only the better embodiment of the application and the explanation to institute's application technology principle.Art technology Personnel should be appreciated that utility model range involved in the application, however it is not limited to which the specific combination of above-mentioned technical characteristic forms Technical solution, while should also cover do not depart from the utility model design in the case where, by above-mentioned technical characteristic or its etc. The other technical solutions for carrying out any combination with feature and being formed.Such as features described above and (but being not limited to) disclosed herein Technical characteristic with similar functions is replaced mutually and the technical solution that is formed.

Claims

1. a kind of camera module array characterized by comprising at least two camera modules, wherein at least one camera module With free surface lens, and the free surface lens carry out active school according to the received actual imaging result of sensitive chip Standard, so that the reference direction of the free surface lens and the difference of reference direction determined by optical design are not more than 0.05 degree.

2. camera module array according to claim 1, which is characterized in that the free surface lens are installed on optics school In quasi- camera lens, optical correction's camera lens includes:

First lens assembly comprising at least one first eyeglass；

Second lens assembly comprising the second lens barrel and at least one second eyeglass being mounted in second lens barrel, it is described At least one first eyeglass and at least one described second eyeglass collectively form imageable optical system；And

Medium is connected, suitable for first lens assembly and second lens assembly are fixed together；

Also, there is at least one described free form surface at least one described first eyeglass and at least one described second eyeglass Eyeglass.

3. camera module array according to claim 2, which is characterized in that at least two camera module includes wide-angle Mould group and focal length mould group, and the focal length mould group has optical correction's camera lens；The wide-angle mould group and the focal length mould Total high equal or both the total high difference of mechanism of the mechanism of group is less than preset threshold value.

4. camera module array according to claim 3, which is characterized in that the wide-angle mould group has the optical correction Camera lens, and in the wide-angle mould group, have at least at least one described first eyeglass and at least one described second eyeglass One free surface lens.

5. camera module array according to claim 3, which is characterized in that the wide-angle mould group and the focal length mould group are total With same wiring board.

6. camera module array according to claim 2, which is characterized in that at least two camera module includes black and white Mould group and colored mould group.

7. camera module array according to claim 2, which is characterized in that the free surface lens have multiple functions Area, and the multiple functional areas are respectively provided with different curvature.

8. camera module array according to claim 3, which is characterized in that the wide-angle mould group has at least one freedom Curve lens are distorted with the shooting for reducing the wide-angle mould group.

9. camera module array according to claim 2, which is characterized in that the connection medium is glue material, is suitable for branch It supports and fixes first lens assembly and second lens assembly, and make first lens assembly and second mirror The relative position of head part keeps relative position determined by active calibration.

10. camera module array according to claim 9, which is characterized in that the axis of first lens assembly and institute Stating has the angle being not zero between the axis of the second lens assembly；And in the optical axis direction along optical correction's camera lens On, there is gap between first lens assembly and second lens assembly.

11. camera module array according to claim 9, which is characterized in that the number of first eyeglass is one, and First eyeglass is free surface lens.

12. camera module array according to claim 9, which is characterized in that the number of at least one second eyeglass To be multiple, and there are a free surface lens at least one described second eyeglass.

13. camera module array according to claim 9, which is characterized in that have at least one described first eyeglass One free surface lens, and there are a free surface lens at least one described second eyeglass.

14. camera module array according to claim 9, which is characterized in that first lens assembly further includes first Lens barrel, and at least one described first eyeglass is installed on the inside of first lens barrel.

15. camera module array according to claim 9, which is characterized in that first lens assembly and/or described Two lens assemblies have the mark for the face type directional information for characterizing its free surface lens for being included.

16. camera module array according to claim 15, which is characterized in that the free surface lens have perpendicular to The datum plane of its thickness direction, the free surface lens have reference direction, first mirror in the datum plane Head part and/or second lens assembly have the mark of the reference direction to characterize the face type of the free surface lens Directional information.

17. camera module array according to claim 16, which is characterized in that the connection medium is glue material, is suitable for It supports and fixes first lens assembly and second lens assembly, and make the reference of the free surface lens The difference of reference direction determined by direction and optical design is not more than 0.05 degree.

18. camera module array according to claim 1, which is characterized in that at least two camera module includes two A asymmetric camera module mutually, at least one of described two mutual asymmetric camera modules have free form surface Eyeglass, so that the total high total high difference of equal or the two mechanism of the mechanism of two mutual asymmetric camera modules is small In preset threshold value.

19. camera module array according to claim 18, which is characterized in that the mutual asymmetric camera shooting of described two The front end face of mould group flushes.