CN109212745A - A kind of optical fiber scanning imaging system and optical fiber scanning imaging device - Google Patents
A kind of optical fiber scanning imaging system and optical fiber scanning imaging device Download PDFInfo
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- CN109212745A CN109212745A CN201710532217.0A CN201710532217A CN109212745A CN 109212745 A CN109212745 A CN 109212745A CN 201710532217 A CN201710532217 A CN 201710532217A CN 109212745 A CN109212745 A CN 109212745A
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- optical fiber
- scanning
- imaging system
- scanning imaging
- light source
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/103—Scanning systems having movable or deformable optical fibres, light guides or waveguides as scanning elements
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Abstract
The invention discloses a kind of optical fiber scanning imaging system and optical fiber scanning imaging device, optical fiber scanning imaging system includes light source, scanning optical fiber, control circuit, collimating microlens array and expands angle mirror group；Light source outgoing light coupling to scanning optical fiber in, then from scanning fiber exit after be collimated microlens array collimated, using expand angle mirror group after be emitted.Due to using the technical solution collimated by collimating microlens array to the light being emitted from scanning optical fiber, it ensure that the collimation of the light of each collimation microlens outgoing from collimating microlens array, also ensure that the scanning of optical fiber scanning imaging system is formed by the resolution ratio of image, to ensure that scanning is formed by the display effect of image, avoiding the light being emitted from scanning optical fiber can situation thicker with the increase of distance and influencing to scan the display effect for being formed by image.
Description
Technical field
The present invention relates to electronic technology field more particularly to a kind of optical fiber scanning imaging systems and optical fiber scanning imaging to set
It is standby.
Background technique
Optical fiber scanning technology is due to color representation ability is strong, brightness is high, the service life is long, small in size, light-weight and power consumption
The features such as low, so being one of the development trend of the following scanning display technology.
When being scanned by optical fiber, according to the difference of the numerical aperture of optical fiber, from the light of fiber exit, there are journeys
Spend different Divergent Phenomenons, but light can be thicker with the increase of outgoing distance, in this way, the light beam be irradiated to curtain or
It will form biggish hot spot on the perspective planes such as metope, will affect resolution ratio and picture size that scanning is formed by image, thus
Influence the display effect that scanning is formed by image.
Referring to FIG. 1, Fig. 1 is the schematic diagram collimated in the prior art to the light of fiber exit, as shown in Figure 1,
Angle processing is collimated and is expanded by the light that optical lens group 91 is emitted optical fiber 90, but the light of fiber exit is passing through light
When learning the edge of lens group 91, collimating effect can be caused to reduce because of the edge effect of optical lens, finally will lead to scanning
The anamorphose of formation.
Therefore, in the prior art there are still because the light beam from fiber exit is there are Divergent Phenomenon influence scanning formed
Image display effect the technical issues of.
Summary of the invention
The embodiment of the present invention provides a kind of optical fiber scanning imaging system and optical fiber scanning imaging device, to solve existing skill
Present in art because the light beam from fiber exit is there are Divergent Phenomenon influence scanning be formed by image display effect skill
Art problem.
In order to achieve the above-mentioned object of the invention, first aspect of the embodiment of the present invention provides a kind of optical fiber scanning imaging system,
Including light source, scanning optical fiber, control circuit, collimating microlens array and expand angle mirror group, it is micro- in the collimating microlens array
Lens numbers are corresponding with the resolution ratio of the optical fiber scanning imaging system；
The control circuit is connected with the scanner driver of the light source and the scanning optical fiber, for controlling the light source
Emergent ray and the control scanning optical fiber are scanned；
The exit end of scanning optical fiber is arranged in the collimating microlens array, expands angle mirror group and is arranged in collimating microlens array
Exit end；
The light coupling of light source outgoing is into the scanning optical fiber, then by the standard after the scanning fiber exit
Lenticule in straight microlens array is collimated, using being emitted after the expansion angle mirror group.
Optionally, the light source is specially tri- color laser light source of RGB or three-color LED light source.
Optionally, the scanning optical fiber includes that optical fiber, ferrule and vibration piezoelectric device, the ferrule are covered in institute
State on optical fiber, the first end of the optical fiber and the light source couples, the second end of the optical fiber it is prominent the ferrule it
Outside, one end on the ferrule close to the second end is arranged in the vibration piezoelectric device.
Optionally, the collimating microlens array is specially dimpling lens array, micro- fresnel lens array or microdiffraction
Lens array.
Optionally, the shape of the lenticule in the collimating microlens array be circle, equilateral triangle, square, rectangle,
One or more of regular hexagon or octagon.
Optionally, the expansion angle mirror group is specially concavees lens.
Optionally, the collimating microlens array and the expansion angle mirror group are integrally manufactured, or are bonded in after manufacturing respectively
Together.
Second aspect of the embodiment of the present invention provides a kind of optical fiber scanning imaging device, comprising:
Image input interface, for receiving image；
Optical fiber scanning imaging system as described in relation to the first aspect, is connected, for passing through optical fiber with described image input interface
The mode of scanning exports described image.
One or more technical solution in the embodiment of the present invention, at least has the following technical effect that or advantage:
Due to using the technical side collimated by collimating microlens array to the light being emitted from scanning optical fiber
Case ensure that the collimation of the light of each collimation microlens outgoing from collimating microlens array, also ensure optical fiber scanning
The resolution ratio that imaging system scanning is formed by image avoids to ensure that scanning is formed by the display effect of image
The light being emitted from scanning optical fiber can be thicker with the increase of distance and influence scans the display effect for being formed by image
Situation.
Detailed description of the invention
Fig. 1 is the schematic diagram collimated in the prior art to the light of fiber exit；
Fig. 2 is the structural schematic diagram of scanning optical fiber provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of tri- color laser light source of RGB；
Fig. 4 is the schematic diagram of collimating microlens array provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of optical fiber scanning imaging device provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of optical fiber scanning imaging system and optical fiber scanning imaging device, to solve existing skill
Present in art because the light beam from fiber exit is there are Divergent Phenomenon influence scanning be formed by image display effect skill
Art problem.
First aspect of the embodiment of the present invention provides optical fiber scanning imaging system, referring to FIG. 2, Fig. 2 is the embodiment of the present invention
The structural schematic diagram of the optical fiber scanning imaging system of offer, as shown in Fig. 2,.The optical fiber scanning imaging system include light source 101,
It scans optical fiber 102, control circuit 103, collimating microlens array 104 and expands angle mirror group 105, in collimating microlens array 104
Lenticule quantity is corresponding with the resolution ratio of optical fiber scanning imaging system；
Control circuit 103 is connected with the scanner driver of light source 101 and scanning optical fiber 102, is emitted for controlling light source 101
Light and control scanning optical fiber 102 are scanned；
The light coupling that light source 101 is emitted is collimated micro- into scanning optical fiber 102, then after being emitted from scanning optical fiber 102
Lenticule in lens array 104 is collimated, using expand angle mirror group 105 after be emitted.
As can be seen that being collimated by collimating microlens array to the light being emitted from scanning optical fiber due to using
Technical solution, ensure that the collimation of the light of each collimation microlens outgoing from collimating microlens array, to guarantee
Scanning is formed by the resolution ratio of image, and avoiding the light being emitted from scanning optical fiber can be thicker with the increase of distance
And influence the situation that scanning is formed by the display effect of image.
In the specific implementation process, light source 101 is specially tri- color laser light source of RGB or RGB three-color LED light source.
Specifically, referring to FIG. 3, Fig. 3 is the structural schematic diagram of tri- color laser light source of RGB, as shown in figure 3, tri- color of RGB
Laser light source may include red laser generating unit 201, green laser generating unit 202, blue laser generating unit 203 with
And first filter plate 204 and the second filter plate 205, for example, red laser generating unit 201 can issue wavelength be 635nm or
The feux rouges of person 650nm, green laser generating unit 202 can issue the green light that wavelength is 532nm, blue laser generating unit
203 can issue the blue light that wavelength is 445nm, and the first filter plate 204 being capable of reflection red light line and transmitting blue light and green
Coloured light line, the second filter plate 205 can reflection blue light and transmission green light, in this way, passing through the first filter plate 204 and the
Two filter plates 205, can be by emitting red light unit 201, green emitting unit 202 and each self-generating of blue-light-emitting unit 203
Light coupling to together, meanwhile, by controlling emitting red light unit 201, green emitting unit 202 and blue-light-emitting list respectively
The energy of 203 output of member, the color of the light after coupling can be controlled.
It should be noted that the wavelength of assorted laser is only to illustrate rather than for limiting the present invention, this field herein
These numerical value can be adjusted to other suitable numbers according to the actual situation by the introduction of affiliated technical staff through this embodiment
Value, to meet the needs of actual conditions, details are not described herein again.
In the specific implementation process, all kinds of laser generating units in tri- color laser light source of RGB can specifically be used and partly be led
Volumetric laser generator, solid-state laser generator etc., herein with no restrictions.
It of courses, it, can in order to guarantee the availability of the laser of each laser generating unit sending in tri- color laser light source of RGB
Specifically may be used so that collimator and/or beam shaping element, collimator and beam shaping element are arranged in each laser generating unit
To carry out shaping and collimation to the light beam that each laser generating unit issues to realize with spherical surface or non-spherical structure,
Details are not described herein again.
In other embodiments, can also make other than it can use above-mentioned tri- color laser light source of RGB in light source 101
Feux rouges, green light and blue light are issued with RGB three-color LED (Light Emitting Diode, light emitting diode) light source etc., specifically
Details are not described herein again for structure and process.
In the specific implementation process, with continued reference to FIG. 2, Fig. 2 is the structure of scanning optical fiber provided in an embodiment of the present invention
Schematic diagram, as shown in Fig. 2, scanning optical fiber 102 includes optical fiber 1021, ferrule 1022 and vibration piezoelectric device 1023, vibration
Piezoelectric device 1023 be scan optical fiber 102 scanner driver, 1022 sets of ferrule on optical fiber 1021, optical fiber 1021
First end is coupled with light source 101, and the outer a part of the prominent ferrule 1022 of the second end of optical fiber 1021, this part outstanding is again
Referred to as " scanning optical fiber cantilever " is denoted as 1024 in Fig. 2, and the vibration setting of piezoelectric device 1023 is close on ferrule 1022
One end of second end.
In the specific implementation process, control circuit 103 is connected with light source 101 respectively, for controlling 101 emergent light of light source
Line, while control circuit 103 is also connected with scanning optical fiber 102, is scanned for controlling scanning optical fiber 102.In practical application
In, the image that control circuit 103 can scan as needed controls 101 output light of light source, while passing through control scanning optical fiber
102 are scanned, and specifically, for certain point in image or pixel, control circuit controls light source 101 and exports the point
Or the light of the pixel corresponding color, while by the voltage of control vibration piezoelectric device 1023, so that optical fiber 1021 is swept
Retouching optical fiber cantilever 1024 can point at corresponding position, in this way, can be reflected into after the beam projecting to perspective plane
Human eye so repeats, and all the points or pixel of the image all can be one time scanned in the extremely short time, to realize to this
The purpose that image is scanned, the visual persistence phenomenon based on human eye, user can also see the image.
It of coursing, control circuit 103 processing such as can also be decoded to the image that scans of needs according to the actual situation,
Details are not described herein again.
In the specific implementation process, since amplitude of the optical fiber 1021 in scanning optical fiber 102 in scanning is smaller, the same to time
The hot spot of 1021 outgoing of fibre is larger, will affect the resolution ratio of scanning imagery and the size of projected picture, so, in order to reduce optical fiber
The hot spot of 1021 outgoing improves the resolution ratio of scan image, and the embodiment of the present invention is by collimating microlens array 104 to optical fiber
The light of 1021 outgoing carries out collimation processing, referring to FIG. 4, Fig. 4 is collimating microlens array provided in an embodiment of the present invention
Schematic diagram, as shown in figure 4, collimating microlens array 104 is specifically as follows dimpling lens array, micro- fresnel lens array or micro-
Diffraction lens array, introduction through this embodiment, technical staff belonging to this field can according to the actual situation, and it is suitable to select
Collimating microlens array, to meet the needs of actual conditions, details are not described herein again.
In the specific implementation process, system can be imaged with optical fiber scanning in the quantity of lenticule in collimating microlens array 104
The pixel of the image of the resolution ratio correspondence namely lenticule and the outgoing of optical fiber scanning imaging system of system corresponds, for example, light
The resolution ratio of fine scanning imaging system output is 640*480, then collimating microlens array 104 needs to be correspondingly arranged 640*480
Lenticule, so that can all be collimated lenticule when optical fiber 1021 exports each pixel corresponding light of image
Corresponding lenticule carries out collimation processing in array 104, to ensure that each pixel of the output image of optical fiber 1021 is corresponding
Light collimation, then guarantee that the scanning of light scanning system is formed by the resolution ratio of image, be also to ensure that scanning
It is formed by the display effect of image.
In the specific implementation process, the microlens shape in collimating microlens array 104 can be circle, triangle, square
One or more of shape or hexagon etc., herein with no restrictions.Preferably, lenticule can be using satisfaction " Mi Pu "
The shape of condition, it is very close to each other in microlens array 103 when the shape of lenticule meets the requirement of " Mi Pu ", it can be avoided
Influence of the light when causing not to be collimated by the gap between lenticule to scanning projection image guarantees that scanning is formed
Image display effect.
In the specific implementation process, it with continued reference to FIG. 2, expanding angle mirror group 105 is specially concavees lens, of courses, expands angle mirror
Group 105 can also be other equally and can be realized that the single lens for expanding angle function or multiple lens are constituted, herein with no restrictions.
In practical applications, since amplitude of the optical fiber in scanning is smaller, so in order to provide a user the light of wide-angle
Fine scan image needs to expand the size of optical fiber scanning image by expanding angle apparatus, but the light of fiber exit has centainly
Dispersion angle, this will lead to the expansion with size, and the hot spot of the light of fiber exit can also become larger namely optical fiber scanning mistake
Angle enlargement is bigger in journey, and the hot spot of the light of fiber exit also can be bigger, and in the present embodiment, since optical fiber 1021 goes out
The light penetrated first passes through collimating microlens array 104 and is collimated, then carries out angle enlargement by expanding angle mirror group 105, so energy
The hot spot of the enough light that not will increase the outgoing of optical fiber 1012 while realizing angle enlargement, ensure that the view of optical fiber scanning image
Feel effect.
In the specific implementation process, collimating microlens array 104 can be integrally manufactured with expansion angle mirror group 105, can also divide
Body manufacture can lead in the plane of incidence in other words on medial surface of concavees lens for example, when expanding angle mirror group 105 and being specially concavees lens
It crosses the modes such as laser engraving or chemical etching and directly produces collimating microlens array 104, it is micro- that collimation can also be manufactured respectively
It is combined again by modes such as bondings after lens array 104 and expansion angle mirror group 105, herein with no restrictions.
It can be seen that by above-mentioned part and be emitted by collimating microlens array to from scanning optical fiber due to using
The technical solution that light is collimated ensure that the collimation of the light of each collimation microlens outgoing from collimating microlens array
Property, also ensure that the scanning of optical fiber scanning imaging system is formed by the resolution ratio of image, to ensure that scanning is formed by figure
The display effect of picture, avoid the light that is emitted from scanning optical fiber can be thicker with the increase of distance and influence scanning institute's shape
At image display effect situation.
Second aspect of the embodiment of the present invention also provides a kind of optical fiber scanning imaging device, referring to FIG. 5, Fig. 5 is the present invention
The structural schematic diagram for the optical fiber scanning imaging device that embodiment provides, as shown in figure 5, the optical fiber scanning imaging device includes:
Image input interface 401, for receiving image；
Optical fiber scanning imaging system 402 including first aspect introduction, is connected, for passing through with image input interface 401
The mode of optical fiber scanning exports the image received.
Optical fiber scanning imaging system in optical fiber scanning imaging device provided in an embodiment of the present invention is in the first aspect
Through being described in detail, technical staff belonging to this field can by the introduction of first aspect, know optical fiber scanning at
As the composition and operational process of equipment just repeat no more herein in order to illustrate the succinct of book.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and ability
Field technique personnel can be designed alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference symbol between parentheses should not be configured to limitations on claims.Word "comprising" or " comprising " are not arranged
Except there are element or steps not listed in the claims.Word "a" or "an" located in front of the element does not exclude the presence of more
A such element.The present invention can be by means of including the hardware of several different elements and by means of properly programmed calculating
Machine is realized.In the unit claims listing several devices, several in these devices can be by same
Hardware branch embodies.The use of word first, second, and third does not indicate any sequence, can be by these word solutions
It is interpreted as title.
One or more technical solution in the embodiment of the present invention, at least has the following technical effect that or advantage:
Due to using the technical side collimated by collimating microlens array to the light being emitted from scanning optical fiber
Case ensure that the collimation of the light of each collimation microlens outgoing from collimating microlens array, also ensure optical fiber scanning
The resolution ratio that imaging system scanning is formed by image avoids to ensure that scanning is formed by the display effect of image
The light being emitted from scanning optical fiber can be thicker with the increase of distance and influence scans the display effect for being formed by image
Situation.
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification (including any accessory claim, abstract and attached drawing), except non-specifically chatting
It states, can be replaced by other alternative features that are equivalent or have similar purpose.That is, unless specifically stated, each feature is only
It is an example in a series of equivalent or similar characteristics.
The invention is not limited to specific embodiments above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (9)
1. a kind of optical fiber scanning imaging system, which is characterized in that including light source, scanning optical fiber, control circuit, collimation microlens battle array
Column and expansion angle mirror group；
The control circuit is connected with the scanner driver of the light source and the scanning optical fiber, for controlling the light source outgoing
Light and the control scanning optical fiber are scanned；
The exit end of scanning optical fiber is arranged in the collimating microlens array, expands angle mirror group and going out for collimating microlens array is arranged in
Penetrate end；
The light coupling of the light source outgoing is micro- by the collimation into the scanning optical fiber, then after the scanning fiber exit
Lenticule in lens array is collimated, using being emitted after the expansion angle mirror group.
2. optical fiber scanning imaging system as described in claim 1, which is characterized in that the light source is specially tri- color laser of RGB
Light source or three-color LED light source.
3. optical fiber scanning imaging system as described in claim 1, which is characterized in that the scanning optical fiber includes optical fiber, optical fiber
Casing and vibration piezoelectric device, the ferrule cover on the optical fiber, the first end of the optical fiber and the light source couples,
The second end of the optical fiber is prominent except the ferrule, and the vibration piezoelectric device setting is leaned on the ferrule
One end of the nearly second end.
4. optical fiber scanning imaging system as claimed in any one of claims 1-3, which is characterized in that the collimation microlens battle array
Column are specially dimpling lens array, micro- fresnel lens array or micro-diffractive lenses array.
5. optical fiber scanning imaging system as claimed in claim 4, which is characterized in that micro- in the collimating microlens array
Mirror quantity is corresponding with the resolution ratio of the optical fiber scanning imaging system.
6. optical fiber scanning imaging system as claimed in claim 4, which is characterized in that lenticule in the collimating microlens array
Shape be one or more of circle, triangle, rectangle or hexagon.
7. optical fiber scanning imaging system as described in claim 1, which is characterized in that the expansion angle mirror group is specially concavees lens.
8. optical fiber scanning imaging system as described in claim 1, which is characterized in that the collimating microlens array and the expansion
Angle mirror group is integrally manufactured, or is bonded together after manufacturing respectively.
9. a kind of optical fiber scanning imaging device characterized by comprising
Image input interface, for receiving image；
Such as optical fiber scanning imaging system of any of claims 1-8, it is connected with described image input interface, for leading to
The mode for crossing optical fiber scanning exports described image.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710532217.0A CN109212745A (en) | 2017-07-03 | 2017-07-03 | A kind of optical fiber scanning imaging system and optical fiber scanning imaging device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710532217.0A CN109212745A (en) | 2017-07-03 | 2017-07-03 | A kind of optical fiber scanning imaging system and optical fiber scanning imaging device |
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| CN201710532217.0A Pending CN109212745A (en) | 2017-07-03 | 2017-07-03 | A kind of optical fiber scanning imaging system and optical fiber scanning imaging device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111751923A (en) * | 2019-03-29 | 2020-10-09 | 成都理想境界科技有限公司 | Optical fiber and scanning light imaging display device |
| CN113126279A (en) * | 2019-12-31 | 2021-07-16 | 成都理想境界科技有限公司 | Optical fiber scanner and near-to-eye display system |
| CN114114675A (en) * | 2020-08-27 | 2022-03-01 | 成都理想境界科技有限公司 | Spliced scanning projection device and method |
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