CN104793214A - Laser radar imaging device - Google Patents
Laser radar imaging device Download PDFInfo
- Publication number
- CN104793214A CN104793214A CN201510203406.4A CN201510203406A CN104793214A CN 104793214 A CN104793214 A CN 104793214A CN 201510203406 A CN201510203406 A CN 201510203406A CN 104793214 A CN104793214 A CN 104793214A
- Authority
- CN
- China
- Prior art keywords
- light modulator
- spatial light
- plano
- collimating lens
- laser
- 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.)
- Withdrawn
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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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
-
- 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
Abstract
The invention discloses a laser radar imaging device. The laser radar imaging device comprises a control module, a laser device, an optical detecting element, a plano-convex collimating lens A, a plano-convex collimating lens B, a reflector and a spatial light modulator, wherein laser generated by the laser device is treated through the plano-convex collimating lens A to obtain parallel light beams; the parallel light beams are reflected to the spatial light modulator via the reflector; the spatial light modulator is used for displaying a hologram generated by deflecting the parallel light beams to different directions of a target; light beams reflected back from the target are deflected to the reflector via the spatial light modulator; the light beams which are reflected back are sent to the plano-convex collimating lens B by the reflector, are focused by the plano-convex collimating lens B and then are sent to the optical detecting element; and the control module controls running of the laser device, the optical detecting element and the spatial light modulator. Compared with the prior art, the laser radar imaging device is flexible. Moreover, the laser radar imaging device can be adjusted or reconfigured by properly compiling the spatial light modulator, and is convenient to use.
Description
Technical field
The present invention relates to laser infrared radar imaging field, specifically a kind of laser infrared radar imaging device.
Background technology
Laser radar is with the radar system of the characteristic quantities such as the position of the Emission Lasers bundle detection of a target, speed.From principle of work, basic difference is not had: to objective emission detectable signal (laser beam) with microwave radar, then the signal (target echo) reflected from target received is compared with transmitting, after doing suitably process, just can obtain target for information about, as target range, orientation, highly, the parameter such as speed, attitude, even shape, thus the target such as aircraft, guided missile is detected, follows the tracks of and is identified.
This current two type systematic is all subject to the impact of the shortcoming that it can not easily reconfigure usually.Once system is set up, so the visual field is generally fixed and only changes by replacing image forming optics or mechanical scanner.The system with autozoom is very complicated and thus expensive.
Summary of the invention
The object of the present invention is to provide a kind of laser infrared radar imaging device, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of laser infrared radar imaging device, comprises control module, laser instrument, optical detection elements, plano-convex collimating lens A, plano-convex collimating lens B, catoptron and spatial light modulator; The laser that described laser instrument produces obtains parallel beam by plano-convex collimating lens A, parallel beam reflexes to spatial light modulator through catoptron, spatial light modulator is configured to the hologram showing the different directions described parallel beam being deflected into target, the light beam that target is reflected back deflects to catoptron through spatial light modulator, the light beam be reflected back is sent into plano-convex collimating lens B by catoptron, after plano-convex collimating lens B focuses on, send into optical detection elements; Described control module controls the operation of laser instrument, optical detection elements and spatial light modulator.
As the further scheme of the present invention: described spatial light modulator is reflective slms.
Compared with prior art, the invention has the beneficial effects as follows: this laser infrared radar imaging device is compared with prior art more flexible, in addition only need by suitably working out spatial light modulator to adjust or reconfiguring, easy to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of laser infrared radar imaging device.
In figure: 1-control module, 2-laser instrument, 3-optical detection elements, 4-plano-convex collimating lens A, 5-plano-convex collimating lens B, 6-catoptron, 7-spatial light modulator.
Embodiment
Be described in more detail below in conjunction with the technical scheme of embodiment to this patent.
Refer to Fig. 1, a kind of laser infrared radar imaging device, comprise control module 1, laser instrument 2, optical detection elements 3, plano-convex collimating lens A 4, plano-convex collimating lens B 5, catoptron 6 and spatial light modulator 7; The laser that described laser instrument 1 produces obtains parallel beam by plano-convex collimating lens A 4, parallel beam reflexes to spatial light modulator 7 through catoptron 6, spatial light modulator 7 is configured to the hologram showing the different directions described parallel beam being deflected into target, the light beam that target is reflected back deflects to catoptron 6 through spatial light modulator 7, the light beam be reflected back is sent into plano-convex collimating lens B 5 by catoptron 6, after plano-convex collimating lens B 5 focuses on, send into optical detection elements 3; Described control module 1 controls the operation of laser instrument 2, optical detection elements 3 and spatial light modulator 7; Described spatial light modulator 7 is reflective slms.
Described laser infrared radar imaging device can easily by suitably working out spatial light modulator to adjust or reconfiguring.Such as, the shape of the light beam of transmitting or the visual field of optical sensor can adjust via spatial light modulator.Different from the mechanical scanner repeating same scan pattern always, work out spatial light modulator by means of only by the respective sequence of hologram to be shown, light beam just can be made with random sequence to illuminate point in scene.
Described laser infrared radar imaging device is compared with prior art more flexible, in addition only need by suitably working out spatial light modulator to adjust or reconfiguring, easy to use.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, various change can also be made under the prerequisite not departing from this patent aim.
Claims (2)
1. a laser infrared radar imaging device, it is characterized in that, comprise control module (1), laser instrument (2), optical detection elements (3), plano-convex collimating lens A (4), plano-convex collimating lens B (5), catoptron (6) and spatial light modulator (7), the laser that described laser instrument (1) produces obtains parallel beam by plano-convex collimating lens A (4), parallel beam reflexes to spatial light modulator (7) through catoptron (6), spatial light modulator (7) is configured to the hologram showing the different directions described parallel beam being deflected into target, the light beam that target is reflected back deflects to catoptron (6) through spatial light modulator (7), the light beam be reflected back is sent into plano-convex collimating lens B (5) by catoptron (6), optical detection elements (3) is sent into after plano-convex collimating lens B (5) focuses on, described control module (1) controls the operation of laser instrument (2), optical detection elements (3) and spatial light modulator (7).
2. laser infrared radar imaging device according to claim 1, is characterized in that, described spatial light modulator (7) is reflective slms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510203406.4A CN104793214A (en) | 2015-04-24 | 2015-04-24 | Laser radar imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510203406.4A CN104793214A (en) | 2015-04-24 | 2015-04-24 | Laser radar imaging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104793214A true CN104793214A (en) | 2015-07-22 |
Family
ID=53558177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510203406.4A Withdrawn CN104793214A (en) | 2015-04-24 | 2015-04-24 | Laser radar imaging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104793214A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105874349A (en) * | 2015-07-31 | 2016-08-17 | 深圳市大疆创新科技有限公司 | Detection device, detection system, detection method, and removable device |
| WO2020156310A1 (en) * | 2019-01-28 | 2020-08-06 | 上海禾赛光电科技有限公司 | Scanning apparatus and scanning method therefor, and laser radar |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833167A (en) * | 2009-03-06 | 2010-09-15 | 三洋电机株式会社 | Beam irradiation device and position detecting device |
| CN103119463A (en) * | 2010-09-17 | 2013-05-22 | Iee国际电子工程股份公司 | Lidar Imager |
| CN203101634U (en) * | 2013-03-31 | 2013-07-31 | 黑龙江工程学院 | Laser radar device for environmental monitoring |
| CN104412125A (en) * | 2012-03-29 | 2015-03-11 | 商业创新和技能部国务大臣 | Measurement device, system and method |
-
2015
- 2015-04-24 CN CN201510203406.4A patent/CN104793214A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833167A (en) * | 2009-03-06 | 2010-09-15 | 三洋电机株式会社 | Beam irradiation device and position detecting device |
| CN103119463A (en) * | 2010-09-17 | 2013-05-22 | Iee国际电子工程股份公司 | Lidar Imager |
| CN104412125A (en) * | 2012-03-29 | 2015-03-11 | 商业创新和技能部国务大臣 | Measurement device, system and method |
| CN203101634U (en) * | 2013-03-31 | 2013-07-31 | 黑龙江工程学院 | Laser radar device for environmental monitoring |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105874349A (en) * | 2015-07-31 | 2016-08-17 | 深圳市大疆创新科技有限公司 | Detection device, detection system, detection method, and removable device |
| WO2017020196A1 (en) * | 2015-07-31 | 2017-02-09 | 深圳市大疆创新科技有限公司 | Detection device, detection system, detection method and portable apparatus |
| US11237252B2 (en) | 2015-07-31 | 2022-02-01 | SZ DJI Technology Co., Ltd. | Detection apparatus, detection system, detection method, and movable device |
| WO2020156310A1 (en) * | 2019-01-28 | 2020-08-06 | 上海禾赛光电科技有限公司 | Scanning apparatus and scanning method therefor, and laser radar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20150722 |