CN212276117U - Laser alignment system for laser MEMS scanning imaging - Google Patents
Laser alignment system for laser MEMS scanning imaging Download PDFInfo
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- CN212276117U CN212276117U CN201922468915.6U CN201922468915U CN212276117U CN 212276117 U CN212276117 U CN 212276117U CN 201922468915 U CN201922468915 U CN 201922468915U CN 212276117 U CN212276117 U CN 212276117U
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Abstract
The utility model belongs to the technical field of the scanning micro mirror, concretely relates to laser alignment system of laser MEMS scanning formation of image, include: the system comprises an aspheric collimating lens, a curved MEMS scanning micromirror and an imaging receiving surface; light enters from the straight surface end of the aspheric collimating lens and reaches an imaging receiving surface through the curved surface MEMS scanning micromirror; the scheme reduces the volume of the system and reduces the system cost under the condition of ensuring the clear imaging of the MEMS scanning imaging system.
Description
Technical Field
The utility model belongs to the technical field of the scanning micro mirror, concretely relates to laser alignment system of laser MEMS scanning formation of image.
Background
Laser MEMS scanning technology, which is an emerging technology based on MEMS (micro electro mechanical systems) development, is based on the excellent performance and miniaturized structure of MEMS, and in recent years, MEMS scanning systems are emerging in many fields, such as: laser radar, laser projection, laser ranging, laser cosmetology, and the like.
At present, an existing laser alignment module of an MEMS scanning system generally adopts an aspheric cylindrical mirror or prism pair to reduce astigmatism caused by different divergence angles of a fast axis and a slow axis of a laser, so that a better imaging quality can be obtained, but the whole system has a large volume and a high cost.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned problem that exists among the prior art, the utility model provides a laser collimation system of laser MEMS scanning formation of image. The to-be-solved technical problem of the utility model is realized through following technical scheme:
a laser collimation system for laser MEMS scanning imaging, comprising: the system comprises an aspheric collimating lens, a curved MEMS scanning micromirror and an imaging receiving surface; light enters from the straight surface end of the aspheric collimating lens and reaches the imaging receiving surface through the curved surface MEMS scanning micromirror.
And the parameters of the aspheric collimating lens are matched with the parameters of the selected light source laser and the diameter of the curved MEMS scanning micromirror.
The curvature of the surface of the curved MEMS scanning micro-mirror is combined with the scanning angle and the distance to the image plane to compensate the image plane curvature caused by micro-mirror scanning.
The utility model has the advantages that:
the system can scan clear images on the image surface through the MEMS micro-mirror under the conditions of low cost and small volume; can be used for various projection scenes, such as: the volume of the automobile head-up display can be obviously reduced.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic diagram of the system architecture.
In the figure: 1. an aspheric collimating lens; 2. curved surface MEMS scanning micro-mirror; 3. the receiving surface is imaged.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined purpose, the following detailed description of the embodiments, structural features and effects of the present invention will be made with reference to the accompanying drawings and examples.
As shown in fig. 1, a laser alignment system for laser MEMS scanning imaging includes: the device comprises an aspheric collimating lens 1, a curved MEMS scanning micromirror 2 and an imaging receiving surface 3; the light enters from the straight surface end of the aspheric collimating lens and passes through the curved surface MEMS scanning micro-mirror 2 to reach the imaging receiving surface 3.
The parameters of the aspheric collimating lens 1 are matched with the parameters of the selected light source laser and the diameter of the curved surface MEMS scanning micro-mirror 2.
The curvature of the surface of the curved MEMS scanning micro-mirror 2 should compensate the curvature of the image plane caused by the scanning of the micro-mirror by combining the scanning angle and the distance to the image plane.
By adjusting the parameters of the aspheric collimating lens 1 and the distance from the aspheric collimating lens 1 to the curved surface MEMS scanning micromirror 2, the diameter of the curved surface MEMS scanning micromirror 2 can be ensured to be smaller than the diameter of a laser beam reaching the curved surface MEMS scanning micromirror 2, and the imaging of the laser beam reflected and scanned by the curved surface MEMS scanning micromirror 2 can be ensured to be clear.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (3)
1. A laser alignment system for laser MEMS scanning imaging is characterized in that: the method comprises the following steps: the device comprises an aspheric collimating lens (1), a curved MEMS scanning micromirror (2) and an imaging receiving surface (3); light enters from the straight surface end of the aspheric collimating lens (1) and reaches the imaging receiving surface (3) through the curved surface MEMS scanning micromirror (2).
2. The laser alignment system for laser MEMS scanning imaging as claimed in claim 1, wherein: the parameters of the aspheric collimating lens (1) are matched with the parameters of the selected light source laser and the diameter of the curved MEMS scanning micro-mirror (2).
3. The laser alignment system for laser MEMS scanning imaging as claimed in claim 1, wherein: the curvature of the surface of the curved MEMS scanning micro-mirror (2) is combined with the scanning angle and the distance to the image plane to compensate the image plane curvature caused by micro-mirror scanning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922468915.6U CN212276117U (en) | 2019-12-31 | 2019-12-31 | Laser alignment system for laser MEMS scanning imaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922468915.6U CN212276117U (en) | 2019-12-31 | 2019-12-31 | Laser alignment system for laser MEMS scanning imaging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212276117U true CN212276117U (en) | 2021-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922468915.6U Active CN212276117U (en) | 2019-12-31 | 2019-12-31 | Laser alignment system for laser MEMS scanning imaging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212276117U (en) |
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2019
- 2019-12-31 CN CN201922468915.6U patent/CN212276117U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210508 Address after: Room 206, building A1, phase II, software new town, tianguba Road, high tech Zone, Xi'an, Shaanxi 710000 Patentee after: Xi'an Huiju yunchuang Electronic Technology Co.,Ltd. Address before: Room 206, block A1, phase II, software new town, Xi'an hi tech Zone, Shaanxi 710003 Patentee before: Jiangsu Zhiju Automobile Electronics Co.,Ltd. Xi'an Branch |
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| TR01 | Transfer of patent right |