CN112162258A - Portable multi-elevation detection radar optical device and self-adaptive scanning method thereof - Google Patents
Portable multi-elevation detection radar optical device and self-adaptive scanning method thereof Download PDFInfo
- Publication number
- CN112162258A CN112162258A CN202011046561.7A CN202011046561A CN112162258A CN 112162258 A CN112162258 A CN 112162258A CN 202011046561 A CN202011046561 A CN 202011046561A CN 112162258 A CN112162258 A CN 112162258A
- Authority
- CN
- China
- Prior art keywords
- reflector
- laser
- telescopic driving
- driving device
- target
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 30
- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000003321 amplification Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4817—Constructional features, e.g. arrangements of optical elements relating to scanning
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The invention discloses a portable multi-elevation detection radar optical device and a self-adaptive scanning method thereof, wherein the optical scanning device comprises: the device comprises a fixed base, a laser light source, a laser receiver, two reflectors, a telescopic driving device for controlling the angle of the first reflector and a feedback element. The angle of the first reflector is controlled to automatically change through the telescopic driving device, so that the angle of reflected light is changed, and multi-elevation detection is carried out; and the telescopic driving device is controlled according to a certain logic judgment relation through the related information of the target fed back by the internal feedback element, so that the scanning speed of the laser is adaptively adjusted. Therefore, the portable radar optical device can conveniently realize the self-adaptive scanning of the target with multiple elevation angles.
Description
Technical Field
The invention relates to the technical field of laser radar optical detection.
Background
The laser radar is a device for sensing surrounding objects by utilizing laser beams, reflects the positions and the appearances of the surrounding objects in the form of point cloud data, has the characteristics of high measurement resolution, high speed and the like, and is widely applied to the fields of mapping, navigation and the like.
At present, the scanning of the laser radar to a multi-elevation target is mostly realized by adopting a light control array technology and matching a servo device. The light control array technology is mostly applied to large-scale equipment, and is used for small-scale equipment with low cost performance and difficult realization; however, if there is no light control array or servo device, the inside of the optical device needs to be constructed by compact arrangement of optical mirrors, resulting in relative locking of angles between the mirrors, and once the elevation angle of a target object changes, the position and angle of the optical mirrors or the light source emitting direction needs to be manually changed to adapt to the change of the target position, which makes it difficult to perform automatic multi-elevation scanning. In addition, the distribution of laser scanning resources of most of laser radars is relatively even at present, that is, the scanning speed cannot be adjusted in a self-adaptive manner by detecting under the same scanning condition when targets exist, but due to the fact that the distribution and size types of the targets are different in the current complex environment, the problems of resource waste and incapability of detecting the targets in a targeted manner exist if the same scanning condition is maintained.
Disclosure of Invention
The invention provides a portable multi-elevation detection radar optical device and a self-adaptive scanning method thereof, aiming at solving the problems that in the prior art, a fixed laser detection radar is difficult to scan a multi-elevation target without the support of a light control array technology and a servo device, laser resources are unreasonably distributed, and the scanning speed cannot be self-adaptively adjusted to detect the target in a targeted manner.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a portable multi-elevation detection radar optical device comprises a main fixed base, a laser receiver, a second reflector base, a positioning plate, a laser light source, a collimating optical lens, a first fixing ring, a second fixing ring, an arc-shaped guide device, a first reflector, a vertical support, a telescopic driving device for controlling the angle of the first reflector and a feedback element embedded in the fixed base; the optical device uses a fixed base as a reference, a laser receiver and a vertical support are respectively arranged on two sides of the upper surface of the fixed base, the vertical support fixes a laser light source and a collimating optical lens through a first fixed ring and a second fixed ring, the second mirror is fixedly connected with a positioning plate through a second mirror seat, the first mirror and the second mirror are connected through a pin shaft, and the lower end of the first mirror is connected with a telescopic driving device for driving the angle of the first mirror.
The telescopic driving device for driving the first reflector is controlled by a control button to be switched on and off, the multi-elevation target is detected by changing the angle of the first reflector, and the scanning speed of the laser is adaptively adjusted by receiving the logical judgment relation of target information fed back by the feedback element and corresponding threshold comparison, so that the detection time when the target exists is increased, namely, the point cloud data quantity during target detection is accumulated, and finally, the self-adaptive scanning of the multi-elevation target is realized.
Further, the device still includes fixing base and firm support, and the fixing base inlays between vertical support and second mirror seat through inside screw, and the lower surface and the firm sloping of fixing base weld mutually, and the lower extreme of firm sloping and vertical support are fixed mutually, make the device more stable.
Furthermore, the telescopic driving device is controlled by a switch, the arc-shaped guide device is connected with the vertical support through a positioning bolt, and the arc-shaped guide device can be detached and replaced according to application scenes.
The invention also provides a method for carrying out self-adaptive scanning by using the portable multi-elevation detection radar optical device, which comprises the following steps:
step one, a laser transmitter transmits multipoint laser to a first reflector;
step two, the first reflector reflects the laser to the target object;
step three, the target reflects the laser to the second reflector;
and step four, the laser receiver receives the reflected laser of the second reflector and performs photoelectric signal conversion and amplification processing.
Step five, the internal feedback element receives relevant target information of the laser receiver, compares the signal amplitude of the target with a threshold 1, if the signal amplitude of the target is greater than the threshold 1, the laser scanning rate is judged to be reduced, and if the signal amplitude of the target is not greater than the threshold 1, the original laser scanning rate is judged to be maintained; and after the laser scanning rate is reduced, comparing the laser scanning rate with the threshold 2 at intervals, if the laser scanning rate is less than the threshold 2, judging that the initial scanning rate is recovered, otherwise, judging that the reduced scanning rate is maintained, and finally feeding back a judgment result to the telescopic driving device to perform self-adaptive adjustment on the laser scanning rate. Wherein the values of the threshold 1 and the threshold 2 can be set to different values according to different environments around the target.
Compared with the prior art, the invention has the beneficial effects that:
1. the first reflector included in the design of the invention can be driven to move by the telescopic device, so that the angle of the first reflector can be adjusted, when the angle of the first reflector is adjustable, the angle of reflected light can also be changed, namely when the elevation angle of a target object is changed, the portable radar optical device can also conveniently detect, and thus multi-elevation angle detection without a light control array technology and a servo device is realized;
2. according to the invention, the discrimination result of the target information and the threshold is fed back to the telescopic driving device through the internal feedback element. When the target signal is judged, the feedback element reduces the laser scanning speed by controlling the telescopic device, and increases the scanning detection time of the laser, namely, the point cloud data volume of the target detection is accumulated; when the target does not exist, the original scanning speed is recovered, so that the laser resource is more reasonably and accurately utilized, and the purpose of self-adaptive scanning is achieved.
Drawings
FIG. 1 is a general structural view of the present optical apparatus;
FIG. 2 is a flow chart of logic determination of the internal feedback control element.
In the figure: 1. a fixed base; 2. a laser receiver; 3. a target object; 4. a second reflector; 41. a second lens base; 42. positioning a plate; 5. a laser transmitter; 51. a first retaining ring; 6. an emission collimating optical lens group; 61. a second retaining ring; 7. an arc-shaped guide device; 8. positioning the bolt; 9. a first reflector; 10. a vertical support; 11. a telescopic driving device; 12. a control button; 13. a fixed seat; 131. a stable inclined frame; 14. a feedback element.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in FIG. 1, in the embodiment of the present invention, a portable multi-elevation detection radar optical device and an adaptive scanning method thereof mainly comprises a fixed base 1, a laser emitter 5 disposed at the top of the device for emitting multi-point laser, an emission collimating optical lens set 6 disposed below the laser emitter 5 for collimating laser light, a first reflector 9 disposed below the emission collimating optical lens set 6 and adjustable in angle for reflecting laser light for the first time, a telescopic driving device 11 for adjusting the angle of the first reflector, a switch 12 for controlling the telescopic driving device, a feedback element 14 embedded in the fixed base, an arc-shaped guiding device 7 capable of controlling the angle variation range of the first reflector alternatively according to the actual detection scene, a second reflector 4 disposed below the first reflector 9 and vertically disposed for reflecting laser light from a target object, a laser receiver 2 located opposite the second mirror 4 and intended to receive the laser light, and fixing means to make the parts of the device more stable: the second reflector holder 41, the positioning plate 42, the first fixing ring 51, the second fixing ring 61, the fixing holder 13 and the stable inclined bracket 131.
As shown in fig. 2, in the embodiment of the present invention, an internal feedback element receives target related information processed by a laser receiver, compares a signal amplitude with a threshold 1, and if the signal amplitude is greater than the threshold 1, determines to reduce a driving rate of a driving device, so as to reduce a laser scanning rate, and if the signal amplitude is not greater than the threshold 1, determines to maintain an initial driving rate, that is, maintain an original laser scanning rate; and after the driving speed is reduced, comparing the driving speed with the threshold 2 at intervals, if the driving speed is less than the threshold 2, judging that the initial driving speed is recovered, namely scanning at the original laser scanning speed, otherwise, judging that the reduced scanning speed is maintained, and finally feeding back a judgment result to the telescopic driving device by the internal feedback element to perform self-adaptive adjustment on the laser scanning speed. Wherein the values of the threshold 1 and the threshold 2 can be set to different values according to different environments around the target. By the method, when the target exists, the driving speed of the driving device is controlled through the comparison and judgment result of the target information fed back by the feedback element and the threshold value, so that the scanning speed of the laser is adjusted, the scanning detection time when the target is detected is prolonged, namely, the point cloud data amount when the target is detected is accumulated, the laser resource is reasonably and accurately distributed, and the purpose of self-adaptive scanning is achieved.
With reference to fig. 1 and 2, the principle of the present invention is as follows:
the laser emitter emits multi-point laser, the emitted laser is collimated by the collimating optical lens group to correct the path of light, the light reaches a target object after being reflected by the first reflector, reaches the second reflector after being reflected by the target object, is received by the laser receiver after being reflected by the second reflector, converts an optical signal into an electrical signal through the photoelectric conversion module, amplifies the signal through the signal amplification module, and then performs subsequent related signal and data processing. When the target detection is carried out, the angle of the first reflector can be changed by driving the telescopic device, so that the scanning angle of laser is changed when the target detection is carried out, and the scanning of a multi-elevation target is realized.
Claims (4)
1. A portable multi-elevation detection radar optical device is characterized in that: the device comprises a fixed base (1), a laser receiver (2), a second reflector (4), a second reflector base (41), a positioning plate (42), a laser light source (5), a collimating optical lens (6), a first fixing ring (51), a second fixing ring (61), an arc-shaped guide device (7), a first reflector (9), a vertical support (10), a telescopic driving device (11) for controlling the angle of the first reflector and a feedback element (14) embedded in the fixed base (1); the optical device uses a fixed base (1) as a reference, two sides of the upper surface of the fixed base (1) are respectively provided with a laser receiver (2) and a vertical support (10), the vertical support (10) fixes a laser light source (5) and a collimating optical lens (6) through a first fixing ring (51) and a second fixing ring (61), the second reflector (4) is fixedly connected with the second reflector through a second reflector seat (41) and a positioning plate (42), the first reflector (9) and the second reflector (4) are connected through a pin shaft, the lower end of the first reflector (9) is connected with a telescopic driving device (11) and used for driving the angle of the telescopic driving device to change the laser elevation angle, and a feedback element (14) feeds back the result of comparison and judgment of target information and a threshold to the telescopic driving device (11).
2. The portable multi-elevation detection radar optical device of claim 1, wherein: the device further comprises a fixed seat (13) and a stable inclined frame (131), the fixed seat (13) is embedded between the vertical support (10) and the second mirror seat (41) through an internal screw, the stable inclined frame (131) is welded to the lower surface of the fixed seat (13), and the lower end of the stable inclined frame (131) is fixed to the lower end of the vertical support (10).
3. The portable multi-elevation detection radar optical device of claim 1, wherein: the telescopic driving device (11) is controlled by a switch (12), the arc-shaped guide device (7) is connected with the vertical support (10) through a positioning bolt (8), and the arc-shaped guide device (7) can be detached and replaced according to application scenes.
4. A method for adaptive scanning using the portable multi-elevation detection radar optical device of claim 1, characterized by:
step one, a laser light source (5) emits multipoint laser to a first reflector (9);
step two, the first reflector (9) reflects the laser to the target object (3);
step three, the target object (3) reflects the laser to the second reflector (4);
step four, the laser receiver (2) receives the reflected laser of the second reflector (4), and performs photoelectric signal conversion and amplification processing;
and step five, the internal feedback element (14) receives related target information of the laser receiver (2), compares and judges the signal amplitude of the target with the threshold 1 and the threshold 2 in sequence, and feeds back the judgment result to the telescopic driving device (11), so that the telescopic driving device (11) adjusts the laser scanning rate in a self-adaptive mode, wherein the values of the threshold 1 and the threshold 2 can be set to different values according to different surrounding environments of the target.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011046561.7A CN112162258B (en) | 2020-09-29 | 2020-09-29 | Portable multi-elevation detection radar optical device and self-adaptive scanning method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011046561.7A CN112162258B (en) | 2020-09-29 | 2020-09-29 | Portable multi-elevation detection radar optical device and self-adaptive scanning method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112162258A true CN112162258A (en) | 2021-01-01 |
| CN112162258B CN112162258B (en) | 2024-01-12 |
Family
ID=73861974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011046561.7A Active CN112162258B (en) | 2020-09-29 | 2020-09-29 | Portable multi-elevation detection radar optical device and self-adaptive scanning method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112162258B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113534100A (en) * | 2021-07-19 | 2021-10-22 | 宁波傲视智绘光电科技有限公司 | Scanning mirror assembly and laser radar |
| CN113900109A (en) * | 2021-12-09 | 2022-01-07 | 惠博新型材料有限公司 | Laser radar device with adjustable laser beam reflection angle |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080278715A1 (en) * | 2007-05-11 | 2008-11-13 | Rosemount Aerospace Inc. | Scanning ladar with adjustable operational parameters |
| JP2009098111A (en) * | 2007-02-28 | 2009-05-07 | Denso Wave Inc | Laser radar apparatus |
| CN102354050A (en) * | 2011-09-28 | 2012-02-15 | 哈尔滨工业大学 | Micro angular swing control reflecting mirror followed by flexible auxiliary arm with superhigh angular sensitivity and high frequency response |
| CN106526564A (en) * | 2016-11-28 | 2017-03-22 | 天津昕黎科技有限公司 | Electromechanical integrated detection radar |
| CN207336751U (en) * | 2017-10-18 | 2018-05-08 | 苏州贝龙光电科技有限公司 | A kind of laser ranging system easy to multidirectional adjusting |
| CN108152830A (en) * | 2017-12-26 | 2018-06-12 | 苏州镭图光电科技有限公司 | A kind of laser radar scanning imaging system and its measuring method |
| CN207833020U (en) * | 2017-12-26 | 2018-09-07 | 苏州镭图光电科技有限公司 | A kind of laser radar scanning imaging system |
| CN208013431U (en) * | 2018-03-01 | 2018-10-26 | 深圳市镭神智能系统有限公司 | A kind of laser radar |
| CN109270515A (en) * | 2018-11-29 | 2019-01-25 | 北京理工大学 | Coaxially receive and dispatch scanning laser radar in variable sweep region |
| CN109343034A (en) * | 2018-09-19 | 2019-02-15 | 中国电子科技集团公司第三十八研究所 | A kind of laser radar emission system based on MEMS galvanometer |
| CN208615832U (en) * | 2018-06-29 | 2019-03-19 | 滁州市经纬装备科技有限公司 | A kind of radar adjusting bracket |
| CN110501689A (en) * | 2019-09-24 | 2019-11-26 | 中国工程物理研究院电子工程研究所 | A kind of underwater laser circumferential scanning beam delivery system |
| CN110531369A (en) * | 2018-05-25 | 2019-12-03 | 深圳市速腾聚创科技有限公司 | A kind of solid-state laser radar |
| CN110531368A (en) * | 2018-05-25 | 2019-12-03 | 深圳市速腾聚创科技有限公司 | A kind of solid-state laser radar |
| CN210690830U (en) * | 2019-09-27 | 2020-06-05 | 济南中申电子科技有限公司 | Laser radar convenient for multi-angle adjustment |
| CN111562573A (en) * | 2020-05-21 | 2020-08-21 | 山东师范大学 | Ultra-low altitude defense radar detection system and method |
-
2020
- 2020-09-29 CN CN202011046561.7A patent/CN112162258B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009098111A (en) * | 2007-02-28 | 2009-05-07 | Denso Wave Inc | Laser radar apparatus |
| US20080278715A1 (en) * | 2007-05-11 | 2008-11-13 | Rosemount Aerospace Inc. | Scanning ladar with adjustable operational parameters |
| CN102354050A (en) * | 2011-09-28 | 2012-02-15 | 哈尔滨工业大学 | Micro angular swing control reflecting mirror followed by flexible auxiliary arm with superhigh angular sensitivity and high frequency response |
| CN106526564A (en) * | 2016-11-28 | 2017-03-22 | 天津昕黎科技有限公司 | Electromechanical integrated detection radar |
| CN207336751U (en) * | 2017-10-18 | 2018-05-08 | 苏州贝龙光电科技有限公司 | A kind of laser ranging system easy to multidirectional adjusting |
| CN108152830A (en) * | 2017-12-26 | 2018-06-12 | 苏州镭图光电科技有限公司 | A kind of laser radar scanning imaging system and its measuring method |
| CN207833020U (en) * | 2017-12-26 | 2018-09-07 | 苏州镭图光电科技有限公司 | A kind of laser radar scanning imaging system |
| CN208013431U (en) * | 2018-03-01 | 2018-10-26 | 深圳市镭神智能系统有限公司 | A kind of laser radar |
| CN110531369A (en) * | 2018-05-25 | 2019-12-03 | 深圳市速腾聚创科技有限公司 | A kind of solid-state laser radar |
| CN110531368A (en) * | 2018-05-25 | 2019-12-03 | 深圳市速腾聚创科技有限公司 | A kind of solid-state laser radar |
| CN208615832U (en) * | 2018-06-29 | 2019-03-19 | 滁州市经纬装备科技有限公司 | A kind of radar adjusting bracket |
| CN109343034A (en) * | 2018-09-19 | 2019-02-15 | 中国电子科技集团公司第三十八研究所 | A kind of laser radar emission system based on MEMS galvanometer |
| CN109270515A (en) * | 2018-11-29 | 2019-01-25 | 北京理工大学 | Coaxially receive and dispatch scanning laser radar in variable sweep region |
| CN110501689A (en) * | 2019-09-24 | 2019-11-26 | 中国工程物理研究院电子工程研究所 | A kind of underwater laser circumferential scanning beam delivery system |
| CN210690830U (en) * | 2019-09-27 | 2020-06-05 | 济南中申电子科技有限公司 | Laser radar convenient for multi-angle adjustment |
| CN111562573A (en) * | 2020-05-21 | 2020-08-21 | 山东师范大学 | Ultra-low altitude defense radar detection system and method |
Non-Patent Citations (2)
| Title |
|---|
| C.S. HOFFMAN ET AL.: "An Experimental Investigation of Radar Target Designation Tracking", 《IEEE TRANSACTIONS ON HUMAN FACTORS IN ELECTRONICS》 * |
| 马天义;余跃;许敬;吴建东;: "MOEMS 2D扫描镜的研究进展", 传感器与微系统, vol. 35, no. 06 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113534100A (en) * | 2021-07-19 | 2021-10-22 | 宁波傲视智绘光电科技有限公司 | Scanning mirror assembly and laser radar |
| CN113900109A (en) * | 2021-12-09 | 2022-01-07 | 惠博新型材料有限公司 | Laser radar device with adjustable laser beam reflection angle |
| CN113900109B (en) * | 2021-12-09 | 2022-04-29 | 深圳市骏思凯奇科技发展有限公司 | Laser radar device with adjustable laser beam reflection angle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112162258B (en) | 2024-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11662433B2 (en) | Distance measuring apparatus, recognizing apparatus, and distance measuring method | |
| US9983297B2 (en) | LIDAR based 3-D imaging with varying illumination field density | |
| US6611318B2 (en) | Adjustable mirror for collimated beam laser sensor | |
| CA3108100A1 (en) | A laser radar | |
| JP4345783B2 (en) | Object detection apparatus and method | |
| US20080231514A1 (en) | Object detector and method of adjusting irradiation axis therefor | |
| CN112162258A (en) | Portable multi-elevation detection radar optical device and self-adaptive scanning method thereof | |
| US20030123045A1 (en) | Process and apparatus for taking up an object space | |
| US20180372847A1 (en) | Focal region optical elements for high-performance optical scanners | |
| US20220268896A1 (en) | Optical distance measurement apparatus | |
| US20190041517A1 (en) | Object detection apparatus | |
| CN111812662A (en) | Detection system and detection method | |
| KR20170112766A (en) | Scanning lidar having concave reflective mirror | |
| US11579259B2 (en) | Laser scanner, for example for a LIDAR system of a driver assistance system | |
| KR20170090401A (en) | System and method for analyzing quality criteria of a radiation spot | |
| JP4890928B2 (en) | Radar equipment | |
| JPH11160436A (en) | Obstacle detecting device | |
| CN115728736A (en) | Laser radar system | |
| KR20190097656A (en) | Apparatus and method for obtaining image | |
| CN113064137B (en) | Distance-fixed high-spatial-resolution laser radar and detection method | |
| CN110850387A (en) | Line scanning laser radar system and application thereof | |
| CN112781839B (en) | Lens performance test system | |
| CN110554395A (en) | Laser detection system and method thereof | |
| US6341187B1 (en) | Automatic light-coupling system for optical components | |
| US20110090516A1 (en) | Beam irradiation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 210003 No. 346, Zhongshan North Road, Jiangsu, Nanjing Applicant after: 724 Research Institute of China Shipbuilding Corp. Address before: 210003 No. 346, Zhongshan North Road, Jiangsu, Nanjing Applicant before: 724TH RESEARCH INSTITUTE OF CHINA SHIPBUILDING INDUSTRY Corp. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |