CN204347239U - Laser radar optical efficiency pick-up unit - Google Patents
Laser radar optical efficiency pick-up unit Download PDFInfo
- Publication number
- CN204347239U CN204347239U CN201420871223.0U CN201420871223U CN204347239U CN 204347239 U CN204347239 U CN 204347239U CN 201420871223 U CN201420871223 U CN 201420871223U CN 204347239 U CN204347239 U CN 204347239U
- Authority
- CN
- China
- Prior art keywords
- diaphragm
- pick
- laser radar
- light
- spectral module
- 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.)
- Active
Links
Landscapes
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The utility model provides a kind of laser radar optical efficiency pick-up unit, and described pick-up unit comprises: diaphragm, and described diaphragm is arranged on the telescopical central optical axis of laser radar; Spectral module, described spectral module is arranged on the downstream of the diaphragm in the light path of laser radar; Light power meter, described light power meter is arranged on the sidepiece of described spectral module movably, for detecting the power of different wavelengths of light; First catoptron, described in when detecting received energy, the light of output diaphragm is turned back by the first catoptron.The utility model detection efficiency advantages of higher.
Description
Technical field
The utility model relates to laser radar, particularly the optical efficiency pick-up unit of laser radar.
Background technology
Laser radar take laser as probe source, carrys out the aerocolloidal optical characteristics of remote sensing atmosphere by the radiation signal of exploring laser light and atmospheric interaction.Environmental data near the ground is mainly monitored in current China's environmental monitoring field, not enough for the aerocolloidal remote sensing means in high-altitude, and laser radar effectively compensate for this deficiency.
Laser radar optical system is divided into transmitting and receiving two parts, in order to ensure that laser radar has higher detect effi-ciency to need to carry out adjustment to optical system.Design phase in early stage generally adopts optical design software to carry out sunykatuib analysis to the utilizing emitted light efficiency of laser radar correspondence detection wavelength and reception optical efficiency, and in device assembles stage of reality, need the receive optical efficiency that proving installation and method can detect each detection wavelength, whether put in place with the situation that realizes or the adjustment of checking optical system of verifying design objective.
Laser radar generally adopts the angle of divergence of collimator and extender device to laser to suppress, and this angle of divergence is less than receiving telescope acceptance angle simultaneously, guarantees that detecting effective echoed signal enters receiving telescope field of view of receiver.Lasing beam diameter after expanding is comparatively large, and beyond effective clear aperature of light-dividing device, the energy measuring for transmitted beam different wave length is unfavorable.Tunable diaphragm is introduced in the utility model, adjust the diameter of tunable diaphragm, the detecting light beam of small diameter is obtained under the prerequisite not changing laser radar emission coefficient, the light beam of this diameter effectively can pass through light-dividing device, and the laser of light-dividing device to difference detection wavelength realizes being separated.Meanwhile, reception the light energy detection stage, also can guarantee this diameter beam can by corner reflector effectively turn back tieback receive telescopic system.
Do not see having the pick-up unit of laser radar complete machine optical efficiency and the report of method in current disclosed document patent.
Utility model content
In order to solve the deficiency in above-mentioned prior art, the utility model provides a kind of optical efficiency pick-up unit of laser radar.
The purpose of this utility model is achieved through the following technical solutions:
A kind of pick-up unit of laser radar; Described pick-up unit comprises:
Diaphragm, described diaphragm is arranged on the telescopical central optical axis of laser radar;
Spectral module, described spectral module is arranged on the downstream of the diaphragm in the light path of laser radar;
Light power meter, described light power meter is arranged on the sidepiece of described spectral module movably, for detecting the power of different wavelengths of light;
First catoptron, described in when detecting received energy, the light of output diaphragm is turned back by the first catoptron.
Compared with prior art, the beneficial effect that the utility model has is:
The detection of Single wavelength, multi-wavelength laser radar optical efficiency can be realized, can be used as the checking of laser radar design phase Theoretical Design and the detection control means of laser radar mass-production stage optical efficiency.
Accompanying drawing explanation
With reference to accompanying drawing, disclosure of the present utility model will be easier to understand.Those skilled in the art it is easily understood that: these accompanying drawings only for illustrating the technical solution of the utility model, and and are not intended to be construed as limiting protection domain of the present utility model.In figure:
Structure diagram when Fig. 1 is the laser radar optical efficiency pick-up unit detection emitted energy according to the utility model embodiment;
Structure diagram when Fig. 2 is the laser radar optical efficiency pick-up unit detection received energy according to the utility model embodiment.
Embodiment
Fig. 1-2 and following description describe Alternate embodiments of the present utility model and how to implement to instruct those skilled in the art and to reproduce the utility model.In order to instruct technical solutions of the utility model, simplifying or having eliminated some conventional aspects.Those skilled in the art should understand that the modification that is derived from these embodiments or replace will in scope of the present utility model.Those skilled in the art should understand that following characteristics can combine to form multiple modification of the present utility model in every way.Thus, the utility model is not limited to following Alternate embodiments, and only by claim and their equivalents.
Embodiment 1:
Fig. 1 schematically illustrates the structure diagram of laser radar optical efficiency pick-up unit when detecting emitted energy of the utility model embodiment, and as shown in Figure 1, described pick-up unit comprises:
Diaphragm 6, described diaphragm is arranged on the telescopical central optical axis of laser radar; The bright dipping aperture adjustable extent of described diaphragm is 1-10mm;
Spectral module 7, described spectral module is arranged on the downstream of the diaphragm in the light path of laser radar; Described spectral module comprises two harmonic separation sheets 10,11 and second catoptron 12; The wavelength of described laser radar bright dipping comprises 355nm, 532nm, 1064nm, first harmonic separating sheet surface coating, anti-reflection to 355nm light, increases anti-to 532nm, 1064nm light; Second harmonic separating sheet surface coating, increases anti-to 532nm light, anti-reflection to 1064nm light, thus each wavelength light is isolated, and realizes light splitting function;
Light power meter 8, described light power meter is arranged on the sidepiece of described spectral module movably, for detecting the power of different wavelengths of light;
Visible, when detecting emitted energy, described spectral module and diaphragm are in the same side, without the need to the first catoptron;
Fig. 2 schematically illustrates the structure diagram of laser radar optical efficiency pick-up unit when detecting received energy of the utility model embodiment, as shown in Figure 2, first catoptron 18, described in when detecting received energy, the light of output diaphragm is turned back by the first catoptron, the emergent light of laser radar of 180 degree of making to turn back receives and light splitting through the module that is split after laser radar telescope, and light power meter detects the energy of different wave length.Described first catoptron adopts pyramid mirror, as level crossing or prism;
Visible, when detecting received energy, described spectral module and diaphragm are in telescopical both sides, and described diaphragm and the first catoptron are in the same side.
Claims (6)
1. a laser radar optical efficiency pick-up unit; It is characterized in that: described pick-up unit comprises:
Diaphragm, described diaphragm is arranged on the telescopical central optical axis of laser radar;
Spectral module, described spectral module is arranged on the downstream of the diaphragm in the light path of laser radar;
Light power meter, described light power meter is arranged on the sidepiece of described spectral module movably, for detecting the power of different wavelengths of light;
First catoptron, described in when detecting received energy, the light of output diaphragm is turned back by the first catoptron.
2. pick-up unit according to claim 1, is characterized in that:
When detecting emitted energy, described spectral module and diaphragm are in the same side;
When detecting received energy, described spectral module and diaphragm are in telescopical both sides, and described diaphragm and the first catoptron are in the same side.
3. pick-up unit according to claim 1, is characterized in that: described catoptron is pyramid mirror.
4. pick-up unit according to claim 1, is characterized in that: described spectral module adopts humorous wave plate.
5. pick-up unit according to claim 4, is characterized in that: described spectral module comprises two harmonic separation sheets and the second catoptron.
6. pick-up unit according to claim 1, is characterized in that: the bright dipping aperture adjustable extent of described diaphragm is 1-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871223.0U CN204347239U (en) | 2014-12-31 | 2014-12-31 | Laser radar optical efficiency pick-up unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871223.0U CN204347239U (en) | 2014-12-31 | 2014-12-31 | Laser radar optical efficiency pick-up unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204347239U true CN204347239U (en) | 2015-05-20 |
Family
ID=53230500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420871223.0U Active CN204347239U (en) | 2014-12-31 | 2014-12-31 | Laser radar optical efficiency pick-up unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204347239U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535986A (en) * | 2014-12-31 | 2015-04-22 | 无锡中科光电技术有限公司 | Laser radar optical efficiency detecting device and method |
-
2014
- 2014-12-31 CN CN201420871223.0U patent/CN204347239U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535986A (en) * | 2014-12-31 | 2015-04-22 | 无锡中科光电技术有限公司 | Laser radar optical efficiency detecting device and method |
| CN104535986B (en) * | 2014-12-31 | 2017-04-19 | 无锡中科光电技术有限公司 | laser radar optical efficiency detecting device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102707331B (en) | Receiving and transmitting integrated sub-nanosecond pulse laser detection system based on polarization | |
| CN100498419C (en) | Light intensity self-adaptive control system based on LCD for atmospheric laser communication system | |
| CY1118267T1 (en) | CATERING METHODS AND OPTICAL SYSTEMS AND PROVISIONS USING THE SAME | |
| CN108183750B (en) | Divide aperture laser communication optical transmitter and receiver based on optics phased array | |
| CN205067745U (en) | Laser range finder | |
| EA201270760A1 (en) | SYSTEM OF COLLECTION OF THERMAL SOLAR ENERGY | |
| CN104865576A (en) | Compact ultra short pulse laser remote ranging system and ranging method thereof | |
| CN205809293U (en) | Unmanned plane, unmanned vehicle and walking robot infrared distance measurement and fault avoidnig device | |
| CN101852924A (en) | Automatic light beam capturing device and light beam capturing method | |
| CN204705715U (en) | A kind of compact ultra-short pulse laser long-distance ranging system | |
| RU2006101972A (en) | BEAM SEPARATION DEVICE FOR MONOSTATIC LIDARS | |
| CN104142498A (en) | Novel beam expander of coherent wind lidar | |
| Mai et al. | Beaconless pat and adaptive beam control using variable focus lens for free-space optical communication systems | |
| CN102183359A (en) | Method and device for detecting collimation of light beams | |
| CN204347239U (en) | Laser radar optical efficiency pick-up unit | |
| CN112558106A (en) | Satellite-borne atmospheric ocean high repetition frequency laser radar system and detection method | |
| CN106291579A (en) | A kind of laser detection system having cooperative target | |
| CN107884851A (en) | A kind of wide scope submarine optical communication optical receiver antenna with even light | |
| CN107947852B (en) | Energy and information composite transmission system for realizing full duplex communication based on vibrating mirror | |
| WO2016187826A1 (en) | Optical receiver and optical receiver-based optical signal adjustment method | |
| CN100580395C (en) | Laser power dynamic calibration apparatus | |
| CN203053429U (en) | Laser ranging module | |
| CN103825186B (en) | A kind of method improving laser output stability | |
| CN104535986A (en) | Laser radar optical efficiency detecting device and method | |
| CN204758878U (en) | But adjustable optical attenuator that plug can be monitored |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Laser radar optical efficiency detecting device and method Effective date of registration: 20151201 Granted publication date: 20150520 Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi science and Technology Branch Pledgor: WUXI CAS PHOTONICS CO., LTD. Registration number: 2015990001069 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model |