CN106054396B - A kind of 3D scanning module containing beam shaping lens structure - Google Patents
A kind of 3D scanning module containing beam shaping lens structure Download PDFInfo
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- CN106054396B CN106054396B CN201610644977.6A CN201610644977A CN106054396B CN 106054396 B CN106054396 B CN 106054396B CN 201610644977 A CN201610644977 A CN 201610644977A CN 106054396 B CN106054396 B CN 106054396B
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- shaping lens
- beam shaping
- scattering
- convergence
- smooth surface
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0916—Adapting the beam shape of a semiconductor light source such as a laser diode or an LED, e.g. for efficiently coupling into optical fibers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/095—Refractive optical elements
- G02B27/0955—Lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
The 3D scanning module containing beam shaping lens structure that the invention discloses a kind of, including mould group pedestal, laser, beam shaping lens collimating aperture is provided on mould group pedestal, laser is arranged in beam shaping lens collimating aperture, and beam shaping lens are arranged in beam shaping lens collimating aperture side.It is made the beneficial effects of the present invention are: light beam reshaping structure uses to be integrally machined, production is simple, and overall structure is stablized, and passive collimation of the beam shaping lens in encapsulation process may be implemented using the structure；In addition, the structure can solve the collision that lens are likely to occur in assembling process and frictionally damage and viscose glue solidification process leads to lens light the pollution problem in face；Secondly, can improve stability by the bond area of the original lens of increase using the structure, increase substantially the reliability of entire mould group optical path.
Description
Technical field
The present invention relates to laser projection field, in particular to a kind of 3D scanning module containing beam shaping lens structure.
Background technique
It is how reliable and be rapidly performed by optical path coupling and become impassable difficulty in existing 3D scanning module technology
Topic.Traditional beam shaping lens coupling process mainly uses the method for active coupling, and efficiency and reliability all not can guarantee.
And shaping lens smooth surface is exposed outside in assembling process, needs to be bonded solidification after the completion of beam shaping lens, the process without
By be automatic or hand assembled all inevitably to lens smooth surface cause damage and pollute.How reliably efficient coupling
Shaping lens become an important technology bottleneck of entire 3D scanning module.
Summary of the invention
In order to achieve the above-mentioned object of the invention, complicated for traditional 3D laser scanning module lens collimation difficult process, lens
Smooth surface is without any protection, and the problem of being easy to damage pollution, the present invention provides a kind of beam shaping lens structure of 3D scanning module.
Its technical solution is to increase the accessory structure for having collimation to position and protect around the beam shaping lens of script.
The structure includes: scattering smooth surface；Converge smooth surface；It scatters smooth surface and protects structure；It converges smooth surface and protects structure；Shaping lens are axially fixed
Plane；Shaping lens level height positioning surface.
A kind of 3D scanning module containing beam shaping lens structure, including mould group pedestal, laser, which is characterized in that
Beam shaping lens collimating aperture is provided on the mould group pedestal, the laser is arranged in the beam shaping lens collimating aperture
Interior, beam shaping lens are arranged in beam shaping lens collimating aperture side；
The beam shaping lens are integrally formed optical lens, the middle part including cuboid, the middle part left side
Side is scattering part, and right side is convergence portion, and the light beam of the laser transmitting is incident through the convergence portion, is gone out by the scattering part
It penetrates；The beam shaping lens further include the scattering smooth surface protection structure that the scattering part two sides are arranged in, and are arranged described
Convergence smooth surface on the outside of convergence portion protects structure.The convergence portion is processed as to be flat by the beam collimation that the laser emits
The optical function face of row light --- convergence smooth surface；The scattering part is that will can first converge again uniformly hair by the directional light of middle part
Scattered optical function face --- scattering smooth surface.
Preferably, the scattering part is cylinder, and upper and lower two plane is parallel to each other, the scattering part and the middle part phase
Side even is plane, and the other side is arcwall face；The outside of the scattering part is arranged the scattering smooth surface and protects structure, described to dissipate
The side for penetrating smooth surface protection structure is connected with the left side of the middle part；The upper and lower surface of the middle part is that shaping lens are horizontal
Altitude location face, the middle part and the ipsilateral one side in the convergence portion are shaping lens axial locating surface；Outside the convergence portion
Side is arranged the convergence smooth surface and protects structure, and the side of the convergence smooth surface protection structure is connected with the right side of the middle part.
Preferably, the two sides of the scattering part are provided with scattering smooth surface protection structure, scattering smooth surface protection structure and
Two planes up and down of the scattering part are vertical；The side of the scattering smooth surface protection structure is connected with the middle part；
The two sides in the convergence portion are provided with the convergence smooth surface protection structure, the side of the convergence smooth surface protection structure
It is connected with the middle part.
Preferably, the scattering smooth surface protection structure and convergence smooth surface protection structure are annular solid, are surround respectively
In the outside of the scattering part and the outside in the convergence portion.
Preferably, the length that the scattering smooth surface protection structure extends to the left is more than on the left of the arcwall face of the scattering part
Vertex；The length that the convergence smooth surface protection structure extends to the right is more than the vertex on the right side of the convergence portion.The i.e. described remittance
It is set positioned at convergence portion two sides and protrudes from convergence portion caustic surface protection structure, can also surround in other examples
The light pass surface or other shapes in convergence portion, effect are all to protect and prevent viscose contact stain to the light pass surface in convergence portion.
It is configured in light-radiating lens portion two sides to the scattering smooth surface protection structure, can also surround scattering part light pass surface, effect is all
The light pass surface of scattering part is protected and and prevents viscose contact stain.
Preferably, the shaping lens axial locating surface is connect with the lateral surface of the beam shaping collimating aperture, the remittance
The vertex in poly- portion is equal to the object space focal length in the convergence portion to the distance of the laser light-emitting window.The i.e. described shaping lens are axial
It is configured to the end face and when mould group pedestal is in contact to positioning surface, the converged light vertex of surface in convergence portion to laser light-emitting window
Distance is equal to the object focus length of convergence smooth surface, realizes passive focus process with this.
The convergence smooth surface protection structure is configured to coaxially assemble with the beam shaping lens collimating aperture, plays collimation
The effect of optical path.
The shaping lens level height positioning surface is configured to when it is in contact with mould group pedestal, scattering part
The contact surface of scattering smooth surface and mould group pedestal is mutually perpendicular to.
The convergence mirror surface protection structure and scatter mirror surface protection structure and the newly-increased contact surface of pedestal can be used into
The area of one step increase bonding fixed line, improves the stability of entire mould group optical path.
Preferably, two planes up and down of the scattering part are parallel with the shaping lens level height positioning surface, are located at institute
The shaping lens level height positioning surface for stating middle part upper end is connect with the inner surface on the mould group pedestal top.
Preferably, the outer diameter of the convergence smooth surface protection structure is equal to the internal diameter of the quasi- finger-hole of the beam shaping.
Preferably, the convergence smooth surface protection structure and scattering mirror surface protection structure do atomization process.
Preferably, the convergence smooth surface protection structure and scatter the contact surface of mirror surface protection structure and mould group pedestal can be by
For smearing viscose solidification optical path.The contact surface that can be used for smearing viscose when having protection structure is bigger, makes whole light channel structure more
It is firm.
Technical solution provided in an embodiment of the present invention has the benefit that light beam reshaping structure uses and is integrally machined system
It forms, production is simple, and overall structure is stablized, and it is passive in encapsulation process that beam shaping lens may be implemented using the structure
Collimation；In addition, the structure can solve the collision that lens are likely to occur in assembling process and frictionally damage and viscose glue solidified
Journey leads to lens light the pollution problem in face；Secondly, can be improved by the bond area of the original lens of increase using the structure
Stability increases substantially the reliability of entire mould group optical path.
Detailed description of the invention
Fig. 1 is the 3D scanning module main view of the embodiment of the present invention.
Fig. 2 is the 3D scanning module top view of the embodiment of the present invention.
Fig. 3 is the beam shaping lens structural schematic diagram of the embodiment of the present invention.
Fig. 4 is the beam shaping lens main view of the embodiment of the present invention.
Fig. 5 is the A-A sectional view of Fig. 4.
Fig. 6 is the beam shaping lens top view of the embodiment of the present invention.
Fig. 7 is the B-B sectional view of Fig. 6.
Fig. 8 is the beam shaping lens left view of the embodiment of the present invention.
Fig. 9 is the beam shaping lens right view of the embodiment of the present invention.
Figure 10 is the beam shaping lens optical path change schematic front view of the embodiment of the present invention.
Figure 11 is the beam shaping lens optical path change diagrammatic top view of the embodiment of the present invention.
Wherein, appended drawing reference are as follows: 102, mould group pedestal；104, laser；106, beam shaping lens；108, beam shaping
Collimated hole；202, scattering part；204, convergence portion；206, scattering smooth surface protects structure；208, convergence smooth surface protects structure；
210, shaping lens axial locating surface；212, shaping lens level height positioning surface.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.Certainly, described herein specific examples are only used to explain the present invention, is not used to
Limit the present invention.
Embodiment 1
Referring to Fig. 1 to Figure 11, the present invention provides a kind of 3D scanning module containing beam shaping lens structure, including mould group
Pedestal 102, laser 104, beam shaping lens 106, beam shaping lens collimating aperture 108.
Wherein beam shaping lens 106 include: scattering part 202, middle part, convergence portion 204, scattering smooth surface protection structure
206, convergence smooth surface protects structure 208, shaping lens axial locating surface 210, shaping lens level height positioning surface 212.
The passive collimation of the device realizes process are as follows: laser 104 is mounted on the beam shaping lens collimating aperture of pedestal 102
In 108, and beam shaping lens 106 converge smooth surface by it and the beam shaping lens on structure 208 and pedestal 102 are protected to collimate
The collimation of entire optical axis is realized in the coupling of hole 108.The effect of shaping lens axial locating surface 210 is when itself and 102 phase of mould group pedestal
When contact, the distance in convergence portion 204 to laser 104 is equal to the object space focal length of optical shaping lens, and shaping lens are horizontal at this time
Altitude location face 212 and the internal side of shell face of mould group pedestal 102, which are in contact, completes entire optical path coupling process.
Pedestal 102, material are metal or other Heat Conduction Materials, and effect is first is that provide heat dissipation for laser 104；Two
It is for the positioning of beam shaping lens 106, completion optical path coupling.
Laser 104 is semiconductor laser, and laser 104 emits Gaussian beam, and wavelength can be visible light, can also
To be infrared light.Laser power is selected according to practical service environment, emerging beam is Gaussian beam, and it is saturating that size meets convergence
The requirement of the launching spot of mirror and dispersing lens.
Its effect of beam shaping lens 106 is to carry out shaping again, Gaussian beam to the Gaussian beam that laser 104 issues
Pass sequentially through convergence portion 204, middle part and scattering part 202.Wherein Gaussian beam becomes directional light after through convergence portion 204.
The directional light becomes first convergence after passing through scattering part 206 and then is uniformly dissipating, and completes beam shaping.
Wherein annulus shape is presented positioned at convergence mirror surface two sides in convergence smooth surface protection structure 208, and effect is all by prominent
It arises from convergence portion 204 and plays protection and positioning action.
Scattering smooth surface protection structure 206 is located at the two sides of scattering part 202 and protrudes from scattering part 202, and effect is pair
It is protected in scattering part 202.
Wherein shaping lens axial locating surface 210, effect are when it is in contact with mould group pedestal 102, and convergence portion 204 arrives
The distance of laser 104 is equal to the object space focal length of optical shaping lens.
Wherein shaping lens level height positioning surface 212 is configured to when it is in contact with pedestal 102, scattering part
202 scattering smooth surface and the contact surface of pedestal 102 are mutually perpendicular to.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of 3D scanning module containing beam shaping lens structure, including mould group pedestal (102), laser (104), special
Sign is, is provided with beam shaping lens collimating aperture (108) on the mould group pedestal (102), and laser (104) setting exists
In the beam shaping lens collimating aperture (108), beam shaping lens are arranged in beam shaping lens collimating aperture (108) side
(106)；
The beam shaping lens (106) are integrally formed optical lens, the middle part including cuboid, the middle part left side
Side is scattering part (202), and right side is convergence portion (204), and the light beam of laser (104) transmitting is through the convergence portion (204)
Incidence is emitted by the scattering part (202)；The beam shaping lens (106) further include being arranged in the scattering part (202) two
The scattering smooth surface of side protects structure (206), and the convergence smooth surface being arranged on the outside of the convergence portion (204) protects structure (208).
2. the 3D scanning module according to claim 1 containing beam shaping lens structure, which is characterized in that the scattering
Portion (202) is cylinder, and upper and lower two plane is parallel to each other, and the side that the scattering part (202) is connected with the middle part is flat
Face, the other side are arcwall face；Scattering smooth surface protection structure (206), the scattering is arranged in the outside of the scattering part (202)
The side of smooth surface protection structure (206) is connected with the left side of the middle part；The upper and lower surface of the middle part is shaping lens
Level height positioning surface (212), the middle part and the ipsilateral one side of the convergence portion (204) are shaping lens axial locating surface
(210)；Convergence smooth surface protection structure (208) is set on the outside of the convergence portion (204), and the convergence smooth surface protects structure
(208) side is connected with the right side of the middle part.
3. the 3D scanning module according to claim 2 containing beam shaping lens structure, which is characterized in that the scattering
The two sides in portion (202) are provided with scattering smooth surface protection structure (206), scattering smooth surface protection structure (206) and the scattering
Two planes up and down in portion (202) are vertical；The side of scattering smooth surface protection structure (206) is connected with the middle part；
The two sides of the convergence portion (204) are provided with convergence smooth surface protection structure (208), and the convergence smooth surface protects structure
(208) side is connected with the middle part.
4. the 3D scanning module according to claim 2 containing beam shaping lens structure, which is characterized in that the scattering
It is annular solid that smooth surface, which protects structure (206) and convergence smooth surface protection structure (208), is looped around the scattering part respectively
(202) outside in outside and the convergence portion (204).
5. the 3D scanning module according to claim 2 containing beam shaping lens structure, which is characterized in that the scattering
The length that smooth surface protection structure (206) extends to the left is more than the vertex on the left of the arcwall face of the scattering part (202)；The remittance
The length that caustic surface protection structure (208) extends to the right is more than the vertex on the right side of the convergence portion (204).
6. according to any 3D scanning module containing beam shaping lens structure of claim 2-5, which is characterized in that institute
Stating convergence portion (204) is the optical function face that can be directional light by the beam collimation that the laser (104) emit；The scattering
Portion (202) is that will can first converge the optical function face uniformly dissipated again by the directional light of middle part；
The shaping lens axial locating surface (210) connect with the lateral surface of the beam shaping collimating aperture (108), the convergence
The vertex in portion (204) is equal to the object space focal length of the convergence portion (204) to the distance of the laser (104) light-emitting window.
7. according to any 3D scanning module containing beam shaping lens structure of claim 2-5, which is characterized in that institute
Two planes up and down for stating scattering part (202) are parallel with shaping lens level height positioning surface (212), are located at the middle part
The shaping lens level height positioning surface (212) of upper end connect with the inner surface on mould group pedestal (102) top.
8. the 3D scanning module according to claim 4 containing beam shaping lens structure, which is characterized in that the convergence
Smooth surface protects the outer diameter of structure (208) equal to the internal diameter of the beam shaping collimating aperture (108).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644977.6A CN106054396B (en) | 2016-08-08 | 2016-08-08 | A kind of 3D scanning module containing beam shaping lens structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644977.6A CN106054396B (en) | 2016-08-08 | 2016-08-08 | A kind of 3D scanning module containing beam shaping lens structure |
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| Publication Number | Publication Date |
|---|---|
| CN106054396A CN106054396A (en) | 2016-10-26 |
| CN106054396B true CN106054396B (en) | 2018-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610644977.6A Active CN106054396B (en) | 2016-08-08 | 2016-08-08 | A kind of 3D scanning module containing beam shaping lens structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3730994B1 (en) * | 2018-01-10 | 2022-12-14 | Mitsubishi Electric Corporation | Parallel light generation device |
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| US5369661A (en) * | 1991-02-07 | 1994-11-29 | Nippon Steel Corporation | Semiconductor laser-pumped solid state laser system and optical coupling system coupling semiconductor laser with optical fiber |
| JPH0772311A (en) * | 1993-09-06 | 1995-03-17 | Kansei Corp | Light transmitting lens of laser hrad |
| US5553174A (en) * | 1993-02-22 | 1996-09-03 | Blue Sky Research, Incorporated | Monolithic cylindrical optic |
| US5790576A (en) * | 1996-06-26 | 1998-08-04 | Sdl, Inc. | High brightness laser diode source |
| US6195208B1 (en) * | 1999-10-20 | 2001-02-27 | Bryan Kok Ann Ngoi | Single aspherical lens for de-astigmatism, collimation, and circulation of laser beams |
| CN103176226A (en) * | 2012-11-03 | 2013-06-26 | 西安华科光电有限公司 | Dodging special-shaped lens used for shaping semiconductor laser leams, dodging laser source and optical system |
| CN203164519U (en) * | 2013-02-01 | 2013-08-28 | 迪曜科技有限公司 | Laser system and integrated laser optical element |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003188452A (en) * | 2001-12-14 | 2003-07-04 | Minolta Co Ltd | Light source device and optical pickup |
| KR100811032B1 (en) * | 2006-10-17 | 2008-03-06 | 삼성전기주식회사 | Monolithic illumination device |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5369661A (en) * | 1991-02-07 | 1994-11-29 | Nippon Steel Corporation | Semiconductor laser-pumped solid state laser system and optical coupling system coupling semiconductor laser with optical fiber |
| US5553174A (en) * | 1993-02-22 | 1996-09-03 | Blue Sky Research, Incorporated | Monolithic cylindrical optic |
| JPH0772311A (en) * | 1993-09-06 | 1995-03-17 | Kansei Corp | Light transmitting lens of laser hrad |
| US5790576A (en) * | 1996-06-26 | 1998-08-04 | Sdl, Inc. | High brightness laser diode source |
| US6195208B1 (en) * | 1999-10-20 | 2001-02-27 | Bryan Kok Ann Ngoi | Single aspherical lens for de-astigmatism, collimation, and circulation of laser beams |
| CN103176226A (en) * | 2012-11-03 | 2013-06-26 | 西安华科光电有限公司 | Dodging special-shaped lens used for shaping semiconductor laser leams, dodging laser source and optical system |
| CN203164519U (en) * | 2013-02-01 | 2013-08-28 | 迪曜科技有限公司 | Laser system and integrated laser optical element |
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| CN106054396A (en) | 2016-10-26 |
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Inventor after: Guo Junxing Inventor after: Xie Chuang Inventor after: Du Xianpeng Inventor after: Dai Qiqiang Inventor after: Ding Dahai Inventor after: Qin Yubing Inventor after: Jin Chuanguang Inventor after: Wang Weiwei Inventor before: Xie Chuang Inventor before: Du Xianpeng Inventor before: Guo Junxing Inventor before: Dai Qiqiang Inventor before: Ding Dahai Inventor before: Qin Yubing Inventor before: Jin Chuanguang Inventor before: Wang Weiwei |
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Effective date of registration: 20201117 Address after: No.26, Wangwu Road, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: Suzhou Xiaoyou Intelligent Technology Co., Ltd Address before: 266100 Shandong city of Qingdao province high tech Zone Songyuan Road No. 17 Qingdao Industrial Technology Research Institute A District 3 floor A1 building 305, 307, 309, 311 room Patentee before: QINGDAO XIAOYOU INTELLIGENT TECHNOLOGY Co.,Ltd. |
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