CN218675465U - Image pickup apparatus - Google Patents

Abstract

The application discloses a photographic device, which comprises a lens barrel, a six-piece lens group and a plurality of assembly elements, wherein the six-piece lens group and the plurality of assembly elements are arranged in the lens barrel, the six-piece lens group comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged from an object side to an image side along an optical axis, wherein the object side surface of the sixth lens is a convex surface, and the image side surface of the sixth lens is a concave surface; the plurality of assembling elements at least comprise a fourth assembling element which is arranged between the fourth lens and the fifth lens and is in contact with the image side surface of the fourth lens and a fifth assembling element which is arranged between the fifth lens and the sixth lens and is in contact with the image side surface of the fifth lens; wherein, the curvature radius R11 of the object side surface of the sixth lens, the curvature radius R12 of the image side surface of the sixth lens, the interval EP45 between the fourth assembly element and the fifth assembly element along the optical axis and the maximum thickness CP5 of the fifth assembly element satisfy: 5.0 sR11/EP 45+ R12/CP5<93.0.

Description

Image pickup apparatus

Technical Field

The application relates to the field of optical devices, in particular to a six-piece type camera device.

Background

With the development of science and technology, an imaging device of a mobile device such as a mobile phone with high imaging quality is more and more favored by users. The lightening and thinning of portable devices such as mobile phones can limit the overall length of the imaging devices, thereby increasing the design difficulty of the imaging devices. Meanwhile, with the improvement of the performance of a photosensitive coupling element (CCD) and a Complementary Metal Oxide Semiconductor (CMOS) and the reduction of the pixel size, including the requirement of brightness of a picture for photographing at night, higher requirements are put forward on the camera device of portable equipment such as a mobile phone.

In order to meet the imaging requirements and the light and thin requirements of a six-piece camera device at the same time, the last two lenses in the camera device often need to play a role in correcting curvature of field and aberration, the design with large surface shape bending is usually adopted, and the last two lenses are sensitive due to large shape bending change when being assembled. In addition, the distance between the last two lenses is small, the last two lenses are easily scratched or interfered due to the close distance during assembly, and the assembly element between the last two lenses is generally a small-thickness assembly element which is easily deformed due to insufficient thickness, so that the imaging quality of the imaging device is affected due to stray light and ghost images generated by the imaging device.

SUMMERY OF THE UTILITY MODEL

The present application provides an image pickup apparatus that may solve, at least, or partially solve, at least one problem or other problems of the related art.

One aspect of the present application provides an image capturing apparatus, which includes a lens barrel, and a six-piece lens group and a plurality of assembly components disposed in the lens barrel, wherein the six-piece lens group includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, which are sequentially arranged from an object side to an image side along an optical axis, and an object side surface of the sixth lens is a convex surface, and an image side surface of the sixth lens is a concave surface; the plurality of assembling elements at least comprise a fourth assembling element which is arranged between the fourth lens and the fifth lens and is in contact with the image side surface of the fourth lens and a fifth assembling element which is arranged between the fifth lens and the sixth lens and is in contact with the image side surface of the fifth lens; wherein, the curvature radius R11 of the object side surface of the sixth lens, the curvature radius R12 of the image side surface of the sixth lens, the interval EP45 between the fourth assembly element and the fifth assembly element along the optical axis and the maximum thickness CP5 of the fifth assembly element satisfy: 5.0 sR11/EP 45+ R12/CP5<93.0.

According to an exemplary embodiment of the application, the plurality of assemblage elements further comprises at least one of:

the first assembling element is arranged between the first lens and the second lens and is in contact with the image side surface of the first lens;

the second assembling element is arranged between the second lens and the third lens and is in contact with the image side surface of the second lens; and

and the third three-dimensional element is arranged between the third lens and the fourth lens and is in contact with the image side surface of the third lens.

According to an exemplary embodiment of the present application, the image pickup apparatus further satisfies: 0.5< | R2a/das | <160.0, wherein a =1, 3, 4 or 5, wherein, when a takes 1, R2a represents the radius of curvature of the image side surface of the first lens, das represents the inner diameter of the object side surface of the first set of vertical elements; when a is 3, R2a represents the curvature radius of the image side surface of the third lens, and das represents the inner diameter of the object side surface of the third three-dimensional element; when a is 4, R2a represents the curvature radius of the image side surface of the fourth lens, and das represents the inner diameter of the object side surface of the fourth stereo element; when a is 5, R2a represents the radius of curvature of the image-side surface of the fifth lens, and das represents the inner diameter of the object-side surface of the fifth assembling element.

According to an exemplary embodiment of the present application, the image pickup apparatus further satisfies: 1.0< | R2c/dcs | <85.0, wherein c =2, 4 or 5, wherein, when c takes 2, R2c represents the radius of curvature of the image-side surface of the second lens and dcs represents the inner diameter of the object-side surface of the second upstanding element; when c is 4, R2c represents the curvature radius of the image side surface of the fourth lens, and dcs represents the inner diameter of the object side surface of the fourth stereo element; when c is 5, R2c represents the curvature radius of the image side surface of the fifth lens, and dcs represents the inner diameter of the object side surface of the fifth combining element.

According to an exemplary embodiment of the application, the radius of curvature R5 of the object-side surface of the third lens and the outer diameter D3s of the object-side surface of the third three-dimensional element satisfy: the absolute value of R5/D3s is more than or equal to 0.4 and less than or equal to 7.5.

According to an exemplary embodiment of the present application, the image pickup apparatus further satisfies: 0.3< | R2f-1/Dfs | <10, wherein f =2, 3, 4 or 5, wherein, when f is 2, R2f-1 represents the radius of curvature of the object-side surface of the second lens, and Dfs represents the outer diameter of the object-side surface of the second erecting element; when f is 3, R2f-1 represents the curvature radius of the object side surface of the third lens, and Dfs represents the outer diameter of the object side surface of the third three-dimensional element; when f is 4, R2f-1 represents the curvature radius of the object side surface of the fourth lens, and Dfs represents the outer diameter of the object side surface of the fourth stereo element; when f is 5, R2f-1 represents the curvature radius of the object side surface of the fifth lens, and Dfs represents the outer diameter of the object side surface of the fifth assembly element.

According to an exemplary embodiment of the present application, an air interval T12 of the first lens and the second lens on the optical axis, a maximum thickness CP1 of the first assemblage element, a total effective focal length f of the image pickup device, and an effective focal length f1 of the first lens satisfy: 5.0 T12/CP1+ f/f1<9.5.

According to an exemplary embodiment of the present application, the outer diameter D1m of the image side surface of the first stereoscopic element, the outer diameter D2m of the image side surface of the second stereoscopic element, the effective focal length f1 of the first lens and the effective focal length f2 of the second lens satisfy: 4.0< | f2 × D2m |/(f 1 × D1 m) <5.0.

According to an exemplary embodiment of the present application, the air space T34 of the third and fourth lenses on the optical axis, the maximum thickness CP3 of the third three-dimensional element, the effective focal length f3 of the third lens and the effective focal length f4 of the fourth lens satisfy: 3.0 are woven of f3 × EP34/| f4 × CP3| <11.0.

According to an exemplary embodiment of the present application, the radius of curvature R5 of the object-side surface of the third lens, the maximum thickness CP4 of the fourth three-dimensional element and the spacing EP34 of the third three-dimensional element and the fourth three-dimensional element along the optical axis satisfy: 17.5 sR5/(EP 34+ CP 4) <40.0.

According to an exemplary embodiment of the application, the radius of curvature R9 of the object-side surface of the fifth lens, the outer diameter D4m of the image-side surface of the fourth stereoscopic element and the inner diameter D4m of the image-side surface of the fourth stereoscopic element satisfy: 3.0 sNt R9/(D4 m-D4 m) <7.0.

According to an exemplary embodiment of the application, the radius of curvature R5 of the object-side surface of the third lens, the outer diameter D2m of the image-side surface of the second stereoscopic element and the inner diameter D2m of the image-side surface of the second stereoscopic element satisfy: 2.5 sR5/(D2 m-D2 m) <5.5.

According to an exemplary embodiment of the application, the effective focal length f3 of the third lens, the outer diameter D3s of the object-side surface of the third three-dimensional element and the inner diameter D3s of the object-side surface of the third three-dimensional element satisfy: 6.5 sj 3/(D3 s-D3 s) <35.0.

According to an exemplary embodiment of the application, the power signs of the first and third lenses are positive and the abbe number of the fifth lens is less than 40.

Easily produce the mar between fifth lens and the sixth lens when assemblage, interfere and the fifth assemblage component is easy to be out of shape because of thickness is not enough, thereby lead to camera device to produce parasitic light and ghost image, this application makes the position of fifth assemblage component just cover the structure part that marginal light got into the sixth lens when guaranteeing that fifth lens and sixth lens edge have enough space through the curvature radius of the object side of control sixth lens and like the side and with its position and the thickness phase-match with the assemblage component, and the thickness of control fifth assemblage component makes its non-deformable, mar and interference problem have been solved on the whole, parasitic light and ghost image risk have been reduced, the yield has been improved.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 shows a schematic configuration diagram of an image pickup apparatus according to the present application;

fig. 2 shows a schematic configuration diagram of an image pickup apparatus according to example 1 of the first embodiment of the present application;

fig. 3 shows a schematic configuration diagram of an image pickup apparatus according to example 2 of the first embodiment of the present application;

fig. 4A to 4D respectively show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve of an image pickup apparatus according to a first embodiment of the present application;

fig. 5 shows a schematic configuration diagram of an image pickup apparatus according to example 1 of a second embodiment of the present application;

fig. 6 shows a schematic configuration diagram of an image pickup apparatus according to example 2 of the second embodiment of the present application;

fig. 7A to 7D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of an image pickup apparatus according to a second embodiment of the present application;

fig. 8 shows a schematic configuration diagram of an image pickup apparatus according to example 1 of a third embodiment of the present application;

fig. 9 shows a schematic configuration diagram of an image pickup apparatus according to example 2 of a third embodiment of the present application;

fig. 10A to 10D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of an image pickup apparatus according to a third embodiment of the present application;

fig. 11 shows a schematic configuration diagram of an image pickup apparatus according to example 1 of a fourth embodiment of the present application;

fig. 12 is a schematic configuration diagram showing an image pickup apparatus according to example 2 of a fourth embodiment of the present application; and

fig. 13A to 13D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of an imaging apparatus according to a fourth embodiment of the present application.

Detailed Description

For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification.

It should be noted that in this specification, the expressions first, second, third, etc. are used only to distinguish one feature from another, and do not represent any limitation on the features. Thus, a first lens discussed below may also be referred to as a second lens or a third lens without departing from the teachings of the present application.

In the drawings, the thickness, size and shape of the lenses have been slightly exaggerated for convenience of explanation. In particular, the shapes of the spherical or aspherical surfaces shown in the drawings are shown by way of example. That is, the shape of the spherical surface or the aspherical surface is not limited to the shape of the spherical surface or the aspherical surface shown in the drawings. The figures are purely diagrammatic and not drawn to scale.

Herein, the paraxial region refers to a region near the optical axis. If the lens surface is convex and the convex position is not defined, it means that the lens surface is convex at least in the paraxial region; if the lens surface is concave and the concave position is not defined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the object to be shot is called the object side surface of the lens, and the surface of each lens closest to the imaging surface is called the image side surface of the lens.

It will be further understood that the terms "comprises," "comprising," "has," "having," "includes" and/or "including," when used in this specification, specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof. Furthermore, when describing embodiments of the present application, the use of "may" mean "one or more embodiments of the present application. Also, the term "exemplary" is intended to refer to an example or illustration.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The features, principles, and other aspects of the present application are described in detail below.

The image capturing apparatus according to an exemplary embodiment of the present application may include a lens barrel and a six-piece lens group disposed in the lens barrel, wherein the six-piece lens group includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens, and the six lenses are sequentially arranged from an object side to an image side along an optical axis. In the first lens to the sixth lens, any two adjacent lenses can have an air space therebetween. The focal power signs of the first lens and the third lens are positive, the Abbe number of the fifth lens is less than 40, the object side surface of the sixth lens is a convex surface, and the image side surface of the sixth lens is a concave surface. The camera device can obtain more light entering amount when taking pictures at night, thereby further improving the imaging quality of the camera device.

The image pickup device may further include a plurality of assembly members disposed in the lens barrel, the plurality of assembly members including at least a fourth assembly member and a fifth assembly member, the fourth assembly member being disposed between the fourth lens and the fifth lens and being in direct contact with the image side surface of the fourth lens, and the fifth assembly member being disposed between the fifth lens and the sixth lens and being in direct contact with the image side surface of the fifth lens. Wherein, the curvature radius R11 of the object side surface of the sixth lens, the curvature radius R12 of the image side surface of the sixth lens, the interval EP45 between the fourth assembling element and the fifth assembling element along the optical axis, and the maximum thickness CP5 of the fifth assembling element can satisfy: 5.0 sR11/EP 45+ R12/CP5<93.0. The curvature radius of the object side surface and the image side surface of the sixth lens and the mutual relation between the interval of the fourth assembling element and the fifth assembling element along the optical axis and the maximum thickness of the fifth assembling element are reasonably controlled, the curvature radius of the object side surface and the image side surface of the sixth lens can be controlled and matched with the position and the thickness of the assembling element, enough space is ensured at the edges of the fifth lens and the sixth lens, meanwhile, the position of the fifth assembling element just covers the structural part of the edge light entering the sixth lens, and the fifth assembling element is not easy to deform by controlling the thickness of the fifth assembling element, so that the problems of scratches and interference are solved integrally, the risks of stray light and ghost images are reduced, and the yield is improved.

The plurality of assembly elements may further include a first assembly element disposed between the first lens piece and the second lens piece and in direct contact with the image side surface of the first lens piece, a second assembly element disposed between the second lens piece and the third lens piece and in direct contact with the image side surface of the second lens piece, and a third assembly element disposed between the third lens piece and the fourth lens piece and in direct contact with the image side surface of the third lens piece. The reasonable use of the assembly element can effectively avoid the risk of stray light, reduce the interference to the image quality and further improve the imaging quality of the camera device. These assemblage elements will be described in detail below.

In an exemplary embodiment, the image pickup apparatus further satisfies: 0.5< | R2a/das | <160.0, where a =1, 3, 4, or 5, where, when a takes 1, R2a represents the radius of curvature of the image-side surface of the first lens, das represents the inner diameter of the object-side surface of the first upstanding element; when a is 3, R2a represents the curvature radius of the image side surface of the third lens, and das represents the inner diameter of the object side surface of the third three-dimensional element; when a is 4, R2a represents the curvature radius of the image side surface of the fourth lens, and das represents the inner diameter of the object side surface of the fourth stereo element; when a is 5, R2a represents the radius of curvature of the image-side surface of the fifth lens, and das represents the inner diameter of the object-side surface of the fifth assembling element. In an example, 0.5< | R2a/das | <9.5. The refractive power signs of the lenses satisfying the above conditional expressions are all positive. In the lens with positive focal power, the inflection point is arranged at the transition position of the effective diameter and the non-effective diameter of the lens, and stray light is easily generated at the inflection point.

In an exemplary embodiment, the image pickup apparatus further satisfies: 1.0< | R2c-1/dcs | <85.0, wherein c =2, 4 or 5, wherein, when c takes 2, R2c represents the radius of curvature of the image-side surface of the second lens and dcs represents the inner diameter of the object-side surface of the second upstanding element; when c is 4, R2c represents the curvature radius of the image side surface of the fourth lens, and dcs represents the inner diameter of the object side surface of the fourth stereo element; when c is 5, R2c represents the curvature radius of the image side surface of the fifth lens, and dcs represents the inner diameter of the object side surface of the fifth combining element. In an example, 1.0< | R2c-1/dcs | <7.5. The refractive power signs of the lenses satisfying the above conditional expressions are all negative. The lens with the negative focal power sign is easy to generate stray light, and the inner diameter of the object side surface of the assembly element contacted with the image side surface of the lens with the negative focal power sign can be limited by controlling the conditional expression, so that the probability of generating the stray light is reduced.

In an exemplary embodiment, the radius of curvature R5 of the object-side surface of the third lens and the outer diameter D3s of the object-side surface of the third three-dimensional element satisfy: the absolute value of R5/D3s is more than or equal to 0.4 and less than or equal to 7.5. In the example, 2.0 ≦ R5/D3s ≦ 3.5. The third lens has an Abbe number larger than 50, so that the problems of large stress and high forming risk are easy to exist, and the outer diameter of the third lens can be reasonably limited through the mutual relation between the curvature radius of the object side surface of the third lens and the outer diameter of the object side surface of the third three-dimensional element, so that the forming and assembling manufacturability of the third lens are ensured. The lens with a large abbe number has poor dispersion correction capability, and needs to be matched with a lens with a small abbe number to perform achromatic aberration, which increases the manufacturing cost of the image pickup device.

In an exemplary embodiment, the image pickup apparatus further satisfies: 0.3< | R2f-1/Dfs | <10, wherein f =2, 3, 4 or 5, wherein, when f is taken to be 2, R2f-1 represents the radius of curvature of the object-side surface of the second lens and Dfs represents the outer diameter of the object-side surface of the second cube element; when f is 3, R2f-1 represents the curvature radius of the object side surface of the third lens, and Dfs represents the outer diameter of the object side surface of the third three-dimensional element; when f is 4, R2f-1 represents the curvature radius of the object side surface of the fourth lens, and Dfs represents the outer diameter of the object side surface of the fourth stereo element; when f is 5, R2f-1 represents the curvature radius of the object side surface of the fifth lens, and Dfs represents the outer diameter of the object side surface of the fifth assembly element. The abbe numbers of the lenses satisfying the above conditional expressions are all less than 40. The lens with small abbe number is usually corresponding to better dispersion correction capability and higher manufacturing cost, the manufacturing cost is reduced by matching with the lens with large abbe number, and meanwhile, the outer diameter of the lens with the abbe number smaller than 40 can be reasonably limited by controlling the conditional expression, so that the assembly manufacturability of the camera device is favorably improved.

In an exemplary embodiment, an air interval T12 of the first lens and the second lens on the optical axis, a maximum thickness CP1 of the first assemblage element, a total effective focal length f of the image pickup device, and an effective focal length f1 of the first lens satisfy: 5.0 sT12/CP 1+ f/f1<9.5. The air space of the first lens and the second lens on the optical axis is reasonably controlled, the maximum thickness of the first group of vertical elements and the mutual relation between the total effective focal length of the camera device and the effective focal length of the first lens are controlled, the refractive power of the first lens is reasonably distributed, meanwhile, the first lens can be controlled, the relation between the edge thickness of the second lens and the air space is controlled, the spherical aberration of the camera device is balanced, the thickness of the first lens is controlled within a reasonable range, scratches caused by collision of the first lens and the second lens due to over-thick thickness of the first lens during the group are avoided, the forming of the lenses is facilitated, and the problems of light leakage and stray light caused by over-thick edges of the first lens and the second lens are avoided.

In an exemplary embodiment, the outer diameter D1m of the image-side surface of the first stereoscopic element, the outer diameter D2m of the image-side surface of the second stereoscopic element, the effective focal length f1 of the first lens and the effective focal length f2 of the second lens satisfy: 4.0< | f2 × D2m |/(f 1 × D1 m) <5.0. The outer diameter of the image side surface of the first assembly element, the outer diameter of the image side surface of the second assembly element and the mutual relation between the effective focal length of the first lens and the effective focal length of the second lens are reasonably controlled, the outer diameters of the second lens and the third lens can be limited in a reasonable interval while the refractive power of the first lens and the second lens is reasonably distributed, the spherical aberration generated by the first lens and the second lens after the positive spherical aberration and the negative spherical aberration are balanced is ensured to be in a smaller range, the balance of the residual spherical aberration of the rear lens group with smaller burden is facilitated, the image quality of an on-axis view field can be easily ensured by the camera device, the problem that the difference between the outer diameters of the second lens and the third lens is too large so as to avoid a large-section difference structure between the second lens and the third lens in the six-piece lens group can be effectively prevented, and the assembly deformation risk is reduced.

In an exemplary embodiment, the air space T34 of the third and fourth lenses on the optical axis, the maximum thickness CP3 of the third three-dimensional element, the effective focal length f3 of the third lens and the effective focal length f4 of the fourth lens satisfy: 3.0 are woven of f3 × EP34/| f4 × CP3| <11.0. The air space of the third lens and the fourth lens on the optical axis, the maximum thickness of the third three-dimensional element and the mutual relation between the effective focal length of the third lens and the effective focal length of the fourth lens are reasonably controlled, the air space of the third lens and the fourth lens on the optical axis and the maximum thickness of the third three-dimensional element can be limited within a reasonable range while the refractive power of the third lens and the fourth lens is reasonably distributed, the third lens and the fourth lens have the capacity of adjusting the light position, the optical sensitivity of the camera device is reduced, the axial size of the third three-dimensional element can be limited within a certain range, the interference phenomenon caused by the fact that the third lens and the fourth lens are too close to each other in the assembling process can be avoided, and the imaging quality of the camera device is improved.

In an exemplary embodiment, the radius of curvature R5 of the object-side surface of the third lens, the maximum thickness CP4 of the fourth three-dimensional element, and the spacing EP34 of the third three-dimensional element and the fourth three-dimensional element along the optical axis satisfy: 17.5 sR5/(EP 34+ CP 4) <40.0. The curvature radius of the object side surface of the third lens, the maximum thickness of the fourth assembly element and the mutual relation between the third assembly element and the fourth assembly element along the optical axis are reasonably controlled, the edge thickness of the third lens can be controlled within a reasonable range while the deflection angle of the edge field of view is in a reasonable interval, the sensitivity of the camera device is effectively reduced, and the assembly stability of the camera device is improved.

In an exemplary embodiment, the radius of curvature R9 of the object-side surface of the fifth lens, the outer diameter D4m of the image-side surface of the fourth stereoscopic element, and the inner diameter D4m of the image-side surface of the fourth stereoscopic element satisfy: 3.0 sR9/(D4 m-D4 m) <7.0. The mutual relation between the curvature radius of the object side surface of the fifth lens and the inner and outer diameters of the image side surface of the fourth assembly element is reasonably controlled, and the shapes of the fifth lens and the fourth assembly element can be reasonably limited, so that the arrangement and the assembly stability of a six-piece lens group and the assembly element in the camera device are facilitated, and the problems of large deformation and the like in the assembly process are prevented.

In an exemplary embodiment, the radius of curvature R5 of the object-side surface of the third lens, the outer diameter D2m of the image-side surface of the second stereoscopic element, and the inner diameter D2m of the image-side surface of the second stereoscopic element satisfy: 2.5 sR5/(D2 m-D2 m) <5.5. The mutual relation between the curvature radius of the object side surface of the third lens and the inner and outer diameters of the image side surface of the second assembling component is reasonably controlled, the inner and outer diameters of the image side surface of the second assembling component are controlled to be in a reasonable range while the thickness of the light through hole is enabled to be in a reasonable interval, emergence and other parasitic light caused by lightening of the outlet hole and lightening of the outlet hole in injection molding due to insufficient thickness of the light through hole are avoided, and dislocation of the bearing position of the second lens and the bearing position of the third lens can be reduced, so that the second assembling component intercepts a parasitic light path, and parasitic light caused by reflection of the second assembling component is reduced.

In an exemplary embodiment, the effective focal length f3 of the third lens, the outer diameter D3s of the object-side surface of the third three-dimensional element and the inner diameter D3s of the object-side surface of the third three-dimensional element satisfy: 6.5 sj 3/(D3 s-D3 s) <35.0. The mutual relation between the effective focal length of the third lens and the inner and outer diameters of the object side surface of the third three-dimensional element is reasonably controlled, so that the fact that the chief ray in the incident light is transmitted in the third lens according to a preset path and the generated stray light can be effectively shielded under the condition that the chief ray in the incident light enters the fourth lens is not influenced can be guaranteed, and the imaging quality of the camera device is improved.

In an exemplary embodiment, the image pickup apparatus further includes a diaphragm, and the diaphragm may be located between the object side and the first mirror. By disposing the diaphragm between the object side and the first lens, the imaging apparatus can be miniaturized.

The image pickup apparatus according to the above-described embodiment of the present application may employ six lenses and a plurality of assemblage members, such as the above six lenses and five assemblage members. Through the optical parameters of each lens and each assemblage component of rational distribution, can make camera device realize miniaturizing to can reduce camera device's parasitic light risk, improve camera device's image quality and assembly stability.

In the embodiment of the present application, at least one of the mirror surfaces of each of the first to sixth lenses is an aspherical mirror surface. The aspheric lens has the characteristics that: the curvature varies continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens having a constant curvature from the lens center to the lens periphery, an aspherical lens has a better curvature radius characteristic, and has advantages of improving distortion aberration and improving astigmatic aberration. After the aspheric lens is adopted, the aberration generated in imaging can be eliminated as much as possible, and the imaging quality is further improved.

However, it will be appreciated by those skilled in the art that the number of lenses and the number of assembling elements constituting the image pickup device may be varied without departing from the technical solutions claimed in the present application to obtain the respective results and advantages described in the present specification. For example, although six lenses and five assembly members are exemplified in the embodiment, the image pickup apparatus is not limited to include six lenses and five assembly members. The camera device may also include other numbers of lenses or assembly elements, if desired.

Specific examples of an image pickup apparatus applicable to the above-described embodiments are further described below with reference to the drawings.

First embodiment

An image pickup apparatus according to a first embodiment of the present application is described below with reference to fig. 2 to 4D. Fig. 2 shows a schematic configuration diagram of an image pickup apparatus 110 according to example 1 of the first embodiment of the present application; fig. 3 shows a schematic configuration diagram of an image pickup apparatus 120 according to example 2 of the first embodiment of the present application.

As shown in fig. 2 and fig. 3, each of the image capturing devices 110 and 120 includes a lens barrel P0, and a six-piece lens group and a plurality of assembly components disposed in the lens barrel P0, the six-piece lens group includes, in order from an object side to an image side: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6. The stop STO can be disposed between the object side and the first lens E1 according to actual needs. The plurality of assemblage members comprises: a first stand-off element P1, a second stand-off element P2, a third stand-off element P3, a fourth stand-off element P4 and a fifth stand-off element P5. The assembling elements P1-P5 can block the entry of external redundant light, so that the lens and the lens cone P0 are better supported, and the structural stability of the camera device is enhanced.

The first lens E1 has positive focal power, and the object-side surface S1 is a convex surface and the image-side surface S2 is a concave surface. The second lens element E2 has a negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens E3 has positive power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a concave image-side surface S10. The sixth lens element E6 has negative power, and has a convex object-side surface S11 and a concave image-side surface S12. The filter has an object side surface S13 (not shown) and an image side surface S14 (not shown). The light from the object passes through the respective surfaces S1 to S14 in order and is finally imaged on the imaging surface S15 (not shown in the figure).

Table 1 shows a basic parameter table of the image pickup apparatus of the first embodiment in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm).

TABLE 1

In the present embodiment, the total effective focal length f of the image pickup apparatus is 4.55mm.

In the first embodiment, the object-side surface and the image-side surface of any one of the first lens E1 to the sixth lens E6 are aspheric surfaces, and the surface type x of each aspheric lens can be defined by, but is not limited to, the following aspheric formula:

wherein x is the rise of the distance from the aspheric surface vertex to the aspheric surface vertex when the aspheric surface is at the position with the height of h along the optical axis direction; c is the paraxial curvature of the aspheric surface, c =1/R (i.e., paraxial curvature c is the inverse of radius of curvature R in table 1 above); k is a conic coefficient; ai is the correction coefficient of the i-th order of the aspherical surface. Table 2 shows the high-order coefficient A that can be used for each of the aspherical mirror surfaces S1 to S12 in the first embodiment ₄ 、A ₆ 、A ₈ 、A ₁₀ 、A ₁₂ 、A ₁₄ 、A ₁₆ 、A ₁₈ And A ₂₀ 。

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

-6.3222E-03

-6.4596E-03

-3.5294E-03

-1.3431E-03

-4.4426E-04

-1.0797E-04

-2.5832E-05

1.9905E-06

-8.5919E-07

S2

-6.0892E-02

-2.3502E-03

-7.9196E-04

-1.0773E-04

-1.2309E-05

-1.4738E-05

-1.2202E-05

-8.2419E-06

-2.7359E-06

S3

-1.3678E-02

1.4014E-02

5.9378E-04

3.1672E-04

6.9957E-05

6.8218E-07

-8.3961E-06

-2.6889E-06

-6.2650E-06

S4

2.9927E-02

1.2164E-02

1.5843E-03

5.3626E-04

1.7761E-04

5.4730E-05

1.5587E-05

4.3916E-06

1.9181E-06

S5

-7.7650E-02

-6.3598E-03

9.3000E-04

8.5943E-04

4.2518E-04

2.0745E-04

9.2352E-05

4.0923E-05

1.3703E-05

S6

-1.5732E-01

-1.6570E-02

2.2451E-03

1.9719E-03

1.0922E-03

4.5904E-04

3.2595E-04

1.0288E-04

6.9467E-05

S7

-2.3446E-01

-1.1921E-02

-9.3634E-03

-4.2968E-03

-1.5514E-03

-7.2574E-04

-1.4352E-04

-8.7467E-05

2.1408E-06

S8

-2.5519E-01

5.2384E-02

-1.7370E-02

-3.9475E-03

2.5419E-03

-1.9184E-05

-2.8645E-04

-1.2047E-04

1.5032E-04

S9

-5.2675E-01

-6.1876E-02

3.3942E-02

-9.1969E-03

4.7205E-03

1.2257E-03

3.4516E-04

-5.6977E-04

-1.9562E-04

S10

-7.5091E-01

-1.0120E-01

5.6710E-02

-2.0038E-02

1.1469E-02

1.7962E-03

1.3027E-03

-4.3306E-04

-7.1710E-05

S11

-2.5930E+00

8.9399E-01

-2.9443E-01

5.3913E-02

3.5417E-03

-7.9453E-03

1.2005E-04

7.0239E-04

-5.4105E-04

S12

-4.5060E+00

8.7492E-01

-2.1075E-01

6.1969E-02

-3.5153E-02

-2.8883E-04

-5.5789E-03

1.0740E-03

-2.8200E-03

TABLE 2

The imaging devices 110 and 120 in examples 1 and 2 of the first embodiment are different in the structural dimensions of the lens barrel and the assembly member included therein. Tables 3-1 to 3-2 show some basic parameters of the lens barrels and the assembly members of the image pickup apparatuses 110 and 120 of the first embodiment, such as CP1, D1m, D2m, D2m, CP3, CP4, CP5, EP34, EP45, D4m, D1s, D1s, D2s, D2s, D3s, D3s, D4s, D4s, D5s, and D5s, etc., some of the basic parameters listed in tables 3-1 to 3-2 were measured according to the labeling method shown in FIG. 1, and the basic parameters listed in tables 3-1 to 3-2 were all measured in millimeters (mm).

Examples/parameters	CP1	D1m	D2m	d2m	CP3	CP4	CP5	EP34	EP45	D4m
											1-1	0.022	3.948	5.548	2.027	0.022	0.022	0.430	0.469	0.368	6.548
1-2	0.022	3.948	5.548	2.027	0.022	0.022	0.022	0.469	0.637	7.677

TABLE 3-1

Examples/parameters	d4m	d1s	D1s	d2s	D2s	d3s	D3s	d4s	D4s	d5s	D5s
												1-1	3.370	2.321	3.948	2.027	5.548	2.434	6.048	3.370	6.548	5.480	7.458
1-2	3.370	2.321	3.948	2.027	5.548	2.434	6.048	3.370	7.677	5.349	7.847

TABLE 3-2

Fig. 4A shows on-axis chromatic aberration curves of the image pickup devices 110 and 120 of the first embodiment, which represent the convergent focus deviations of light rays of different wavelengths after passing through the image pickup devices 110 and 120. Fig. 4B shows astigmatism curves of the imaging devices 110 and 120 of the first embodiment, which represent meridional field curvature and sagittal field curvature corresponding to different image heights. Fig. 4C shows distortion curves of the image pickup devices 110 and 120 of the first embodiment, which represent distortion magnitude values corresponding to different image heights. Fig. 4D shows a chromatic aberration of magnification curve of the image pickup devices 110 and 120 of the first embodiment, which represents a deviation of different image heights on the imaging surface after the light rays pass through the image pickup devices 110 and 120. As can be seen from fig. 4A to 4D, the image capturing apparatuses 110 and 120 according to the first embodiment can achieve good imaging quality.

Second embodiment

An image pickup apparatus according to a second embodiment of the present application is described below with reference to fig. 5 to 7D. Fig. 5 shows a schematic configuration diagram of an image pickup apparatus 210 according to example 1 of the second embodiment of the present application; fig. 6 shows a schematic configuration diagram of an image pickup apparatus 220 according to example 2 of the second embodiment of the present application.

As shown in fig. 5 and fig. 6, each of the image capturing devices 210 and 220 includes a lens barrel P0, and a six-piece lens group and a plurality of assembly components disposed in the lens barrel P0, the six-piece lens group includes, in order from an object side to an image side: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6. The stop STO can be disposed between the object side and the first lens E1 according to actual needs. The plurality of assemblage elements comprises: first, second, third, fourth and fifth stand-off elements P1, P2, P3, P4 and P5. The assembling elements P1-P5 can block the entry of external redundant light, so that the lens and the lens cone P0 are better supported, and the structural stability of the camera device is enhanced.

The first lens E1 has positive focal power, and the object-side surface S1 is a convex surface and the image-side surface S2 is a concave surface. The second lens element E2 has a negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has positive power, and the object-side surface S5 is convex and the image-side surface S6 is convex. The fourth lens element E4 has a negative power, and has a concave object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has negative power, and has a convex object-side surface S9 and a concave image-side surface S10. The sixth lens element E6 has negative power, and has a convex object-side surface S11 and a concave image-side surface S12. The filter has an object side surface S13 (not shown) and an image side surface S14 (not shown). The light from the object passes through the respective surfaces S1 to S14 in order and is finally imaged on the imaging surface S15 (not shown in the figure).

Table 4 shows a basic parameter table of the image pickup apparatus of the second embodiment in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm).

TABLE 4

In the present embodiment, the total effective focal length f of the image pickup device is 4.48mm.

In the second embodiment, both the object-side surface and the image-side surface of any one of the first lens E1 to the sixth lens E6 are aspheric. Table 5 shows the coefficients A of the high-order terms which can be used for the aspherical mirror surfaces S1 to S12 in the second embodiment ₄ 、A ₆ 、A ₈ 、A ₁₀ 、A ₁₂ 、A ₁₄ 、A ₁₆ 、A ₁₈ And A ₂₀ 。

Flour mark

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

-6.2870E-04

-3.5210E-03

-2.3541E-03

-9.1582E-04

-3.3870E-04

-7.9287E-05

-3.1207E-05

-4.4098E-06

-7.3396E-06

S2

-4.9838E-02

-2.7320E-03

-8.2431E-04

-1.5833E-04

-3.8623E-05

-2.9644E-05

-2.0617E-05

-1.5174E-05

-4.6416E-06

S3

-1.6620E-02

1.2512E-02

4.7536E-05

2.8063E-04

4.1022E-05

-1.5818E-05

-1.6284E-05

-6.3243E-06

-7.4882E-06

S4

2.2538E-02

1.1526E-02

7.7910E-04

4.2960E-04

1.4625E-04

4.5464E-05

1.1242E-05

3.7467E-06

-1.0987E-06

S5

-6.0652E-02

-3.8714E-03

2.1493E-06

4.1906E-04

2.3456E-04

1.0438E-04

4.1242E-05

1.5148E-05

7.6277E-06

S6

-1.1250E-01

-8.1626E-03

2.5244E-03

2.6243E-03

1.6121E-03

7.2072E-04

3.6130E-04

1.1816E-04

4.9445E-05

S7

-2.7726E-01

-2.0293E-02

-1.2901E-02

-7.0687E-03

-2.3499E-03

-1.1383E-03

-3.5934E-04

-1.8548E-04

-4.9455E-05

S8

-3.8049E-01

6.5986E-02

-1.4526E-02

-9.4637E-03

2.3740E-03

-6.1493E-04

-5.3723E-04

-4.2165E-04

1.3378E-04

S9

-6.8916E-01

-5.0558E-02

7.5571E-02

-1.2402E-02

7.5336E-03

-4.9078E-03

-1.2546E-03

-3.7948E-04

6.4114E-04

S10

-9.3067E-01

-1.4922E-01

1.2293E-02

-2.6157E-02

9.4899E-03

3.3584E-03

2.4128E-03

1.1607E-03

5.7725E-04

S11

-3.1649E+00

1.0565E+00

-3.9596E-01

1.2800E-01

-3.3198E-02

5.2040E-04

1.0394E-05

-8.9499E-05

-6.9769E-04

S12

-4.9863E+00

9.4110E-01

-2.6356E-01

8.0269E-02

-3.5797E-02

9.2683E-03

-8.3502E-03

-2.3083E-03

-4.1250E-03

TABLE 5

The imaging devices 210 and 220 in examples 1 and 2 of the second embodiment are different in the structural sizes of the lens barrel and the assembly member included therein. Tables 6-1 to 6-2 show some basic parameters of the lens barrels, assembly components, etc. of the image pickup devices 210 and 220 of the second embodiment, such as CP1, D1m, D2m, D2m, CP3, CP4, CP5, EP34, EP45, D4m, D1s, D1s, D2s, D2s, D3s, D3s, D4s, D4s, D5s, and D5s, some of the basic parameters listed in tables 6-1 to 6-2 were measured according to the labeling method shown in FIG. 1, and the basic parameters listed in tables 6-1 to 6-2 were all measured in millimeters (mm).

Examples/parameters	CP1	D1m	D2m	d2m	CP3	CP4	CP5	EP34	EP45	D4m
											2-1	0.022	3.779	5.379	1.879	0.022	0.022	0.620	0.329	0.323	5.979
2-2	0.022	3.779	5.379	1.879	0.022	0.022	0.022	0.329	0.738	6.802

TABLE 6-1

Examples/parameters	d4m	d1s	D1s	d2s	D2s	d3s	D3s	d4s	D4s	d5s	D5s
												2-1	3.742	2.152	3.779	1.879	5.379	2.363	5.879	3.720	5.979	5.286	7.004
2-2	3.742	2.152	3.779	1.879	5.379	2.363	5.879	3.724	6.802	5.726	8.082

TABLE 6-2

Fig. 7A shows on-axis chromatic aberration curves of the image pickup devices 210 and 220 of the second embodiment, which represent the convergent focus deviations of light rays of different wavelengths after passing through the image pickup devices 210 and 220. Fig. 7B shows astigmatism curves of the image pickup devices 210 and 220 of the second embodiment, which represent meridional field curvature and sagittal field curvature corresponding to different image heights. Fig. 7C shows distortion curves of the image pickup devices 210 and 220 of the second embodiment, which represent distortion magnitude values corresponding to different image heights. Fig. 7D shows a chromatic aberration of magnification curve of the image pickup devices 210 and 220 of the second embodiment, which represents a deviation of different image heights on the imaging surface of the light rays after passing through the image pickup devices 210 and 220. As can be seen from fig. 7A to 7D, the image pickup devices 210 and 220 according to the second embodiment can achieve good imaging quality.

Third embodiment

An image pickup apparatus according to a third embodiment of the present application is described below with reference to fig. 8 to 10D. Fig. 8 shows a schematic configuration diagram of an image pickup apparatus 310 according to example 1 of the third embodiment of the present application; fig. 9 shows a schematic configuration diagram of an image pickup apparatus 320 according to example 2 of the third embodiment of the present application.

As shown in fig. 8 and 9, each of the image capturing devices 310 and 320 includes a lens barrel P0, and a six-piece lens group and a plurality of assembly components disposed in the lens barrel P0, the six-piece lens group includes, in order from an object side to an image side: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6. The stop STO can be disposed between the object side and the first lens E1 according to actual needs. The plurality of assemblage members comprises: a first stand-off element P1, a second stand-off element P2, a third stand-off element P3, a fourth stand-off element P4 and a fifth stand-off element P5. The assembling elements P1-P5 can block the entry of external redundant light, so that the lens and the lens cone P0 are better supported, and the structural stability of the camera device is enhanced.

The first lens E1 has positive focal power, and the object-side surface S1 is a convex surface and the image-side surface S2 is a concave surface. The second lens E2 has negative power, and the object-side surface S3 is a convex surface and the image-side surface S4 is a concave surface. The third lens E3 has positive power, and has a convex object-side surface S5 and a convex image-side surface S6. The fourth lens element E4 has a negative power, and has a concave object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has negative power, and has a convex object-side surface S11 and a concave image-side surface S12. The filter has an object side surface S13 (not shown) and an image side surface S14 (not shown). The light from the object passes through the respective surfaces S1 to S14 in order and is finally imaged on the imaging surface S15 (not shown in the figure).

Table 7 shows a basic parameter table of the image pickup apparatus of the third embodiment in which the units of the radius of curvature, thickness/distance, and focal length are millimeters (mm).

TABLE 7

In the present embodiment, the total effective focal length f of the image pickup apparatus is 4.43mm.

In the third embodiment, both the object-side surface and the image-side surface of any one of the first lens E1 to the sixth lens E6 are aspheric. Tables 8-1 to 8-2 show the coefficients A of the high-order terms which can be used for the aspherical mirror surfaces S1 to S12 in the third embodiment ₄ 、A ₆ 、A ₈ 、A ₁₀ 、A ₁₂ 、A ₁₄ 、A ₁₆ 、A ₁₈ 、A ₂₀ 、A ₂₂ 、A ₂₄ 、A ₂₆ 、A ₂₈ And A ₃₀ 。

Flour mark

A4

A6

A8

A10

A12

A14

A16

S1

1.7788E-03

-3.3409E-03

-2.1394E-03

-8.2607E-04

-2.8868E-04

-7.3698E-05

-2.3996E-05

S2

-3.8530E-02

-2.1017E-03

-1.0871E-03

-2.0185E-04

-4.2038E-05

-1.5238E-05

-9.2167E-06

S3

-1.7600E-02

1.1168E-02

-5.4444E-05

2.8782E-04

3.8603E-05

-6.7780E-07

-6.6352E-06

S4

1.3670E-02

1.0451E-02

6.6074E-04

4.4151E-04

1.3428E-04

4.5310E-05

1.1876E-05

S5

-6.1216E-02

-4.8425E-03

1.2424E-04

5.1420E-04

2.5376E-04

1.2269E-04

4.5610E-05

S6

-1.1458E-01

-9.3716E-03

1.8130E-03

2.1274E-03

1.0557E-03

5.1356E-04

2.4392E-04

S7

-2.8297E-01

-1.0508E-02

-9.0488E-03

-4.7069E-03

-2.1615E-03

-1.0087E-03

-3.6534E-04

S8

-3.8602E-01

8.5027E-02

-8.5641E-03

-8.8786E-03

1.5035E-03

1.0072E-03

-2.3169E-05

S9

-7.4826E-01

-8.3623E-02

1.0088E-01

-5.8415E-03

4.3377E-03

-4.3699E-03

-1.3222E-03

S10

-7.4116E-01

-1.7369E-01

3.9569E-02

-3.6942E-02

6.3735E-03

3.4882E-03

2.8700E-03

S11

-3.4503E+00

1.1388E+00

-4.6009E-01

1.5720E-01

-4.1577E-02

3.2731E-03

-8.9632E-04

S12

-5.5619E+00

1.1514E+00

-3.2255E-01

7.4892E-02

-4.8829E-02

1.8214E-02

-6.6089E-03

TABLE 8-1

TABLE 8-2

The imaging devices 310 and 320 in examples 1 and 2 of the third embodiment are different in the structural sizes of the lens barrel and the assembly member included therein. Tables 9-1 to 9-2 show some basic parameters of the lens barrels and the assembly members of the image pickup apparatuses 310 and 320 of the third embodiment, such as CP1, D1m, D2m, D2m, CP3, CP4, CP5, EP34, EP45, D4m, D1s, D1s, D2s, D2s, D3s, D3s, D4s, D4s, D5s, and D5s, etc., some of the basic parameters listed in tables 9-1 to 9-2 were measured in accordance with the labeling method shown in FIG. 1, and the basic parameters listed in tables 9-1 to 9-2 were all measured in millimeters (mm).

Examples/parameters	CP1	D1m	D2m	d2m	CP3	CP4	CP5	EP34	EP45	D4m
											3-1	0.022	3.756	5.356	2.000	0.022	0.022	0.563	0.430	0.820	5.956
3-2	0.022	3.756	5.356	2.000	0.022	0.022	0.022	0.430	0.820	6.964

TABLE 9-1

Examples/parameters	d4m	d1s	D1s	d2s	D2s	d3s	D3s	d4s	D4s	d5s	D5s
												3-1	3.705	2.130	3.756	2.000	5.356	2.390	5.895	3.705	5.956	5.263	6.982
3-2	3.705	2.130	3.756	2.000	5.356	2.393	5.859	3.705	6.964	6.075	8.165

TABLE 9-2

Fig. 10A shows on-axis chromatic aberration curves of the image pickup devices 310 and 320 of the third embodiment, which represent the convergent focus deviations of light rays of different wavelengths after passing through the image pickup devices 310 and 320. Fig. 10B shows astigmatism curves of the imaging devices 310 and 320 of the third embodiment, which represent meridional field curvature and sagittal field curvature corresponding to different image heights. Fig. 10C shows distortion curves of the image pickup devices 310 and 320 of the third embodiment, which represent distortion magnitude values corresponding to different image heights. Fig. 10D shows a chromatic aberration of magnification curve of the image pickup devices 310 and 320 of the third embodiment, which represents a deviation of different image heights on the imaging surface of the light rays after passing through the image pickup devices 310 and 320. As can be seen from fig. 10A to 10D, the image pickup devices 310 and 320 according to the third embodiment can achieve good imaging quality.

Fourth embodiment

An image pickup apparatus according to a fourth embodiment of the present application is described below with reference to fig. 11 to 13D. Fig. 11 shows a schematic configuration diagram of an image pickup apparatus 410 according to example 1 of the fourth embodiment of the present application; fig. 12 shows a schematic configuration diagram of an image pickup apparatus 420 according to example 2 of the fourth embodiment of the present application.

As shown in fig. 11 and 12, each of the image capturing devices 410 and 420 includes a lens barrel P0, and a six-piece lens group and a plurality of assembly components disposed in the lens barrel P0, the six-piece lens group includes, in order from an object side to an image side: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6. The stop STO can be disposed between the object side and the first lens E1 according to actual needs. The plurality of assemblage elements comprises: a first stand-off element P1, a second stand-off element P2, a third stand-off element P3, a fourth stand-off element P4 and a fifth stand-off element P5. The assembling elements P1-P5 can block the entry of external redundant light, so that the lens and the lens cone P0 are better supported, and the structural stability of the camera device is enhanced.

The first lens E1 has positive focal power, and the object-side surface S1 is a convex surface and the image-side surface S2 is a concave surface. The second lens E2 has negative power, and the object-side surface S3 is a convex surface and the image-side surface S4 is a concave surface. The third lens element E3 has positive power, and the object-side surface S5 is convex and the image-side surface S6 is concave. The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a concave image-side surface S8. The fifth lens element E5 has positive power, and has a convex object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has a negative power, and the object-side surface S11 is convex and the image-side surface S12 is concave. The filter has an object side surface S13 (not shown) and an image side surface S14 (not shown). The light from the object passes through the respective surfaces S1 to S14 in order and is finally imaged on the imaging surface S15 (not shown in the figure).

Table 10 shows a basic parameter table of the image pickup apparatus of the fourth embodiment in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm).

Watch 10

In the present embodiment, the total effective focal length f of the image pickup device is 4.08mm.

In the fourth embodiment, both the object-side surface and the image-side surface of any one of the first lens E1 to the sixth lens E6 are aspheric. Tables 11-1 to 11-2 show the coefficients A of the high-order terms which can be used for the aspherical mirror surfaces S1 to S12 in the fourth embodiment ₄ 、A ₆ 、A ₈ 、A ₁₀ 、A ₁₂ 、A ₁₄ 、A ₁₆ 、A ₁₈ 、A ₂₀ 、A ₂₂ 、A ₂₄ 、A ₂₆ 、A ₂₈ And A ₃₀ 。

Flour mark

A4

A6

A8

A10

A12

A14

A16

S1

-2.6015E-02

-1.6533E-02

-8.1844E-03

-3.1530E-03

-9.8352E-04

-2.1671E-04

-9.4748E-06

S2

-7.7032E-02

4.9573E-04

-4.1184E-03

2.3336E-04

-1.2982E-04

9.3889E-06

-5.5882E-06

S3

-1.6976E-03

2.4479E-02

3.5849E-04

1.3486E-03

1.2291E-04

4.8907E-05

3.9536E-06

S4

4.4766E-02

2.0235E-02

2.9389E-03

1.2759E-03

3.7078E-04

1.1931E-04

4.2835E-05

S5

-8.8146E-02

-6.2643E-03

-6.3283E-04

-7.5432E-06

-5.8171E-05

1.4067E-05

-4.0587E-06

S6

-1.8647E-01

-2.6620E-02

-5.0741E-03

-9.0827E-04

-5.7855E-04

-1.5931E-04

-2.3275E-05

S7

-2.3010E-01

-1.7348E-02

-1.6539E-02

-5.5898E-03

-2.5654E-03

-1.0788E-03

-3.7367E-04

S8

-2.5117E-01

5.7882E-02

-1.6787E-02

-3.0430E-03

2.1324E-03

2.5360E-04

-2.0383E-04

S9

-4.5335E-01

-8.8898E-02

2.5562E-02

-8.5667E-03

2.0490E-03

8.9972E-04

1.3391E-03

S10

-4.8129E-01

-2.0393E-01

4.3549E-02

-2.7155E-02

8.1082E-03

-1.1553E-03

4.4075E-03

S11

-2.3073E+00

6.4669E-01

-1.2217E-01

5.6052E-03

9.0490E-04

-2.7623E-03

5.3274E-03

S12

-4.4185E+00

8.7418E-01

-2.6390E-01

8.9102E-02

-2.8903E-02

5.5825E-03

-5.0201E-04

TABLE 11-1

Flour mark

A18

A20

A22

A24

A26

A28

A30

S1

1.8160E-05

6.9312E-06

0.0000E+00

0.0000E+00

0.0000E+00

0.0000E+00

0.0000E+00

S2

-1.8994E-06

-4.1292E-06

0.0000E+00

0.0000E+00

0.0000E+00

0.0000E+00

0.0000E+00

S3

-2.7312E-06

-8.5599E-06

0.0000E+00

0.0000E+00

0.0000E+00

0.0000E+00

0.0000E+00

S4

1.2879E-05

5.3396E-06

0.0000E+00

0.0000E+00

0.0000E+00

0.0000E+00

0.0000E+00

S5

9.6231E-06

-2.8316E-06

0.0000E+00

0.0000E+00

0.0000E+00

0.0000E+00

0.0000E+00

S6

-6.4274E-06

9.4461E-06

-4.5599E-06

0.0000E+00

0.0000E+00

0.0000E+00

0.0000E+00

S7

-1.8181E-04

-4.1068E-05

-1.2146E-05

-5.3551E-06

0.0000E+00

0.0000E+00

0.0000E+00

S8

-2.5250E-04

1.2420E-04

0.0000E+00

0.0000E+00

0.0000E+00

0.0000E+00

0.0000E+00

S9

-2.0896E-05

-2.8748E-04

-1.5313E-04

-7.5296E-05

-1.8424E-06

0.0000E+00

0.0000E+00

S10

4.6239E-04

6.5539E-04

-1.3241E-05

6.1751E-05

2.6532E-05

3.1018E-05

1.5644E-06

S11

-3.9199E-03

9.5987E-04

0.0000E+00

0.0000E+00

0.0000E+00

0.0000E+00

0.0000E+00

S12

2.2385E-04

-9.1520E-04

0.0000E+00

0.0000E+00

0.0000E+00

0.0000E+00

0.0000E+00

TABLE 11-2

The imaging devices 410 and 420 in examples 1 and 2 of the fourth embodiment are different in the structural size of the lens barrel and the assembly member included therein. Tables 12-1 to 12-2 show some basic parameters of the lens barrels and the assembly members of the image pickup apparatuses 410 and 420 of the fourth embodiment, such as CP1, D1m, D2m, D2m, CP3, CP4, CP5, EP34, EP45, D4m, D1s, D1s, D2s, D2s, D3s, D3s, D4s, D4s, D5s, and D5s, etc., some of the basic parameters listed in tables 12-1 to 12-2 were measured according to the labeling method shown in FIG. 1, and the basic parameters listed in tables 12-1 to 12-2 were all measured in millimeters (mm).

Examples/parameters	CP1	D1m	D2m	d2m	CP3	CP4	CP5	EP34	EP45	D4m
											4-1	0.022	4.166	5.814	2.202	0.022	0.022	0.022	0.544	0.468	6.383
4-2	0.022	4.166	5.814	2.204	0.022	0.022	0.350	0.544	0.377	6.383

TABLE 12-1

Examples/parameters	d4m	d1s	D1s	d2s	D2s	d3s	D3s	d4s	D4s	d5s	D5s
												4-1	3.426	2.540	4.166	2.202	5.814	2.599	6.219	3.426	6.383	4.973	6.967
4-2	3.426	2.540	4.166	2.202	5.814	2.599	6.219	3.426	6.383	4.956	6.369

TABLE 12-2

Fig. 13A shows on-axis chromatic aberration curves of the image pickup devices 410 and 420 of the fourth embodiment, which represent the convergent focus deviations of light rays of different wavelengths after passing through the image pickup devices 410 and 420. Fig. 13B shows astigmatism curves of the imaging devices 410 and 420 of the fourth embodiment, which represent meridional field curvature and sagittal field curvature corresponding to different image heights. Fig. 13C shows distortion curves of the image pickup devices 410 and 420 of the fourth embodiment, which represent distortion magnitude values corresponding to different image heights. Fig. 13D shows a chromatic aberration of magnification curve of the image pickup devices 410 and 420 of the fourth embodiment, which represents a deviation of different image heights on the imaging surface after the light rays pass through the image pickup devices 410 and 420. As can be seen from fig. 13A to 13D, the image pickup devices 410 and 420 of the fourth embodiment can achieve good image quality.

In summary, the conditional expressions of each of the examples in the first to fourth embodiments satisfy the relationship shown in table 13.

Watch 13

The present application also provides an imaging device whose electron photosensitive element may be a photo-coupled device (CCD) or a complementary metal oxide semiconductor device (CMOS). The imaging device may be a stand-alone imaging device such as a digital camera, or may be an imaging module integrated on a mobile electronic device such as a mobile phone. The imaging device is equipped with the above-described image pickup device.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention herein disclosed is not limited to the particular combination of the above-described features, but also encompasses other combinations of any of the above-described features or their equivalents without departing from the spirit of the invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims (14)

1. An image pickup apparatus, comprising:

the image sensor comprises a six-piece lens group, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens, wherein the six lenses are sequentially arranged from an object side to an image side along an optical axis, the object side surface of the sixth lens is a convex surface, and the image side surface of the sixth lens is a concave surface;

a plurality of assembly elements including at least a fourth assembly element disposed between the fourth lens piece and the fifth lens piece and in contact with the image side surface of the fourth lens piece and a fifth assembly element disposed between the fifth lens piece and the sixth lens piece and in contact with the image side surface of the fifth lens piece; and

a lens barrel in which the six-piece lens group and the plurality of assemblage elements are disposed,

wherein a radius of curvature R11 of an object-side surface of the sixth lens, a radius of curvature R12 of an image-side surface of the sixth lens, a spacing EP45 of the fourth and fifth assembling elements along the optical axis, and a maximum thickness CP5 of the fifth assembling element satisfy: 5.0 sR11/EP 45+ R12/CP5<93.0.

2. The image capture device of claim 1, wherein the plurality of assemblage elements further comprises at least one of:

the first assembling element is arranged between the first lens and the second lens and is in contact with the image side surface of the first lens;

the second assembling element is arranged between the second lens and the third lens and is in contact with the image side surface of the second lens; and

and the third three-dimensional element is arranged between the third lens and the fourth lens and is in contact with the image side surface of the third lens.

3. The image pickup apparatus according to claim 2, wherein said image pickup apparatus further satisfies:

0.5< | R2a/das | <160.0, wherein a =1, 3, 4 or 5,

when a is 1, R2a represents the curvature radius of the image side surface of the first lens, and das represents the inner diameter of the object side surface of the first assembling element; when a is 3, R2a represents the curvature radius of the image side surface of the third lens, and das represents the inner diameter of the object side surface of the third three-dimensional element; when a is 4, R2a represents the curvature radius of the image side surface of the fourth lens, and das represents the inner diameter of the object side surface of the fourth stereoscopic element; when a is 5, R2a represents the radius of curvature of the image-side surface of the fifth lens element, and das represents the inner diameter of the object-side surface of the fifth assembling element.

4. The image pickup apparatus according to claim 2, further satisfying:

1.0< | R2c/dcs | <85.0, where c =2, 4 or 5,

when c is 2, R2c represents the curvature radius of the image side surface of the second lens, and dcs represents the inner diameter of the object side surface of the second erection element; when c is 4, R2c represents the curvature radius of the image side surface of the fourth lens, and dcs represents the inner diameter of the object side surface of the fourth stereo element; when c is 5, R2c represents the radius of curvature of the image-side surface of the fifth lens, and dcs represents the inner diameter of the object-side surface of the fifth constituent element.

5. The imaging apparatus according to claim 2, wherein a radius of curvature R5 of the object-side surface of the third lens and an outer diameter D3s of the object-side surface of the third three-dimensional element satisfy: the absolute value of R5/D3s is more than or equal to 0.4 and less than or equal to 7.5.

6. The image pickup apparatus according to claim 2, further satisfying:

0.3< | R2f-1/Dfs | <10, wherein f =2, 3, 4 or 5,

when f is 2, R2f-1 represents the curvature radius of the object side surface of the second lens, and Dfs represents the outer diameter of the object side surface of the second assembling element; when f is 3, R2f-1 represents the curvature radius of the object side surface of the third lens, and Dfs represents the outer diameter of the object side surface of the third three-dimensional element; when f is 4, R2f-1 represents the curvature radius of the object side surface of the fourth lens, and Dfs represents the outer diameter of the object side surface of the fourth stereo element; when f is 5, R2f-1 represents the curvature radius of the object side surface of the fifth lens, and Dfs represents the outer diameter of the object side surface of the fifth assembly element.

7. The image pickup device according to claim 2, wherein an air space T12 on the optical axis between the first lens and the second lens, a maximum thickness CP1 of the first component, a total effective focal length f of the image pickup device, and an effective focal length f1 of the first lens satisfy: 5.0 sT12/CP 1+ f/f1<9.5.

8. The imaging apparatus according to claim 2, wherein an outer diameter D1m of the image-side surface of the first constituent element, an outer diameter D2m of the image-side surface of the second constituent element, an effective focal length f1 of the first lens, and an effective focal length f2 of the second lens satisfy: 4.0< | f2 × D2m |/(f 1 × D1 m) <5.0.

9. The image pickup apparatus according to claim 2, wherein an interval EP34 along the optical axis of the third and fourth three-dimensional elements, a maximum thickness CP3 of the third three-dimensional element, an effective focal length f3 of the third lens, and an effective focal length f4 of the fourth lens satisfy: 3.0 are woven of f3 × EP34/| f4 × CP3| <11.0.

10. The imaging apparatus according to claim 2, wherein a radius of curvature R5 of the object-side surface of the third lens, a maximum thickness CP4 of the fourth three-dimensional element, and an interval EP34 between the third three-dimensional element and the fourth three-dimensional element along the optical axis satisfy: 17.5 sR5/(EP 34+ CP 4) <40.0.

11. The imaging apparatus according to claim 2, wherein a radius of curvature R9 of an object-side surface of the fifth lens, an outer diameter D4m of an image-side surface of the fourth stereo element, and an inner diameter D4m of the image-side surface of the fourth stereo element satisfy: 3.0 sR9/(D4 m-D4 m) <7.0.

12. The imaging apparatus according to claim 2, wherein a radius of curvature R5 of the object-side surface of the third lens, an outer diameter D2m of the image-side surface of the second constituent element, and an inner diameter D2m of the image-side surface of the second constituent element satisfy: 2.5 sR5/(D2 m-D2 m) <5.5.

13. The imaging apparatus according to any one of claims 1 to 12, wherein an effective focal length f3 of the third lens, an outer diameter D3s of an object-side surface of the third three-dimensional element, and an inner diameter D3s of the object-side surface of the third three-dimensional element satisfy: 6.5 sj 3/(D3 s-D3 s) <35.0.

14. The image pickup apparatus according to any one of claims 1 to 12, wherein the signs of the powers of the first lens and the third lens are positive, and the abbe number of the fifth lens is less than 40.

Images