CN207396732U - A kind of multi-line laser radar light path system - Google Patents
A kind of multi-line laser radar light path system Download PDFInfo
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- CN207396732U CN207396732U CN201721201354.8U CN201721201354U CN207396732U CN 207396732 U CN207396732 U CN 207396732U CN 201721201354 U CN201721201354 U CN 201721201354U CN 207396732 U CN207396732 U CN 207396732U
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Abstract
The utility model is suitable for laser radar range field, provide a kind of multi-line laser radar light path system, including laser beam emitting device, echo reception device, wherein, laser beam emitting device includes first circuit board, laser emitting module array and microoptical circuit deflection module array, and laser emitting module array and microoptical circuit deflection module array are arranged on first circuit board.In production multi-line laser radar, when carrying out optics debugging, without to being individually adjusted per laser emitting module all the way, position and the angle of first circuit board need to only be determined, and the angle of the laser using microoptical circuit deflection module array adjustment laser beam emitting device array emitter, echo reception device is made to receive return laser beam, it avoids in debugging process because adjacent road laser interferes with each other so that the problem of light path debugging is difficult, make light path debugging simpler, and then cost of labor is also reduced, compress the supply time.
Description
Technical field
The utility model belongs to laser radar range field more particularly to a kind of multi-line laser radar light path system.
Background technology
Laser radar has many advantages, such as precision height, strong antijamming capability, reaction speed is fast, fits as a kind of distance-measuring equipment
For a variety of use environments.
In practical applications, laser ranging at present mainly includes flight time ranging, range of triangle, wherein, the flight time
Ranging be by laser radar inside optical texture, laser signal is projected to the object on specific direction, works as laser signal
When touching on object, fraction of laser light echo-signal can be reflected back, laser radar receives the return laser beam letter that the object is reflected back
After number, can by calculate the laser signal of transmitting and receive laser echo signal that object returns during this when
Between, to calculate radar the distance between to testee.
In the research and practice to the prior art, the inventor of the utility model has found, the multi-thread laser of the prior art
The light path system of radar need to easily interfere with each other, light to individually being debugged per laser all the way in the adjacent road laser of light path debugging process
Road is debugged difficult, it is necessary to repeatedly debug repeatedly, causes high labor cost, the supply time is long.
Utility model content
The utility model provides a kind of multi-line laser radar light path system, it is intended to solve existing in the prior art in light path tune
The adjacent road laser of examination process easily interferes with each other, and light path is debugged difficult, it is necessary to repeatedly debug repeatedly, causes high labor cost, is supplied
The problem of ETCD estimated time of commencing discharging is long.
The utility model is realized in this way a kind of multi-line laser radar light path system, including：
For emitting the laser beam emitting device of multiple laser to target object；
For receiving the echo reception device of the return laser beam of the target object reflection；
The laser beam emitting device includes first circuit board, laser emitting module array and microoptical circuit deflection module array；
The laser emitting module array is used to emit the multiple laser；
The microoptical circuit deflection module array is used to adjust the light path of the multiple laser；
The laser emitting module array and microoptical circuit deflection module array are arranged on the first circuit board.
Preferably, the laser emitting module array includes multiple laser emitting modules, each laser emitting module
Beam of laser can be emitted；
The microoptical circuit deflection module array includes multiple microoptical circuit deflections one-to-one with the laser emitting module
Module, the microoptical circuit deflection module are used to adjust the light path of the laser of the corresponding laser emitting module transmitting.
Preferably, the microoptical circuit deflection module array includes the first linear array and the second linear array；
First linear array and second linear array are divided into the both sides of the first circuit board, and the two phase
It is mutually parallel.
Preferably, the laser beam emitting device further includes first laser conduction unit and collimation lens set；
The first laser conduction unit is used to conduct the laser after the microoptical circuit deflection module array adjustment；
The laser that the collimation lens set is used to be conducted through the first laser conduction unit collimates.
Preferably, the first laser conduction unit includes：
Between the microoptical circuit deflection module array and the collimation lens set, for deflecting the of the light path of laser
One optical path-deflecting module and the second optical path-deflecting module.
Preferably, the laser emitting module includes：
For emitting the laser diode of laser；And
Laser for the laser diode to be emitted collimates, so that the laser is in the laser diode
Fast axle dissipates Corner Block List Representation with the angle of divergence on slow axis close to consistent compression.
Preferably, the compression diverging Corner Block List Representation is miniature cylindrical mirror.
Preferably, the echo reception device includes focus lens group, second laser conduction unit, photodetector array
And second circuit board；
The focus lens group is used to the return laser beam that the target object reflects being focused；
The second laser conduction unit is used for the return laser beam after the focus lens group is focused on and conducts；
The photodetector array is arranged on the second circuit board, is passed for receiving the second laser conduction unit
The return laser beam led.
Preferably, the photodetector array includes the multiple and one-to-one photodetection of the laser emitting module
Device；
The photodetector is used to receive the return laser beam of the corresponding laser emitting module.
Preferably, the photodetector array includes third linear array and the 4th linear array；
The third linear array and the 4th linear array are divided into the both sides of the second circuit board, and the two phase
It is mutually parallel.
A kind of multi-line laser radar light path system provided by the utility model is filled including laser beam emitting device, echo reception
It puts, wherein, laser beam emitting device includes first circuit board, laser emitting module array and microoptical circuit deflection module array, laser
Transmitting module array and microoptical circuit deflection module array are arranged on first circuit board.By previously according to multi-line laser radar
Product design, the angle of the laser that laser beam emitting device is launched is adjusted using microoptical circuit deflection module array, so as to
Position and the angle of adjustment first circuit board are only needed when producing multi-line laser radar, without sending out the laser per laser all the way
It penetrates module to be individually adjusted, avoid in debugging process because adjacent road laser interferes with each other so that light path debugging difficulty is asked
Topic makes light path debugging simpler, and then also reduces cost of labor, has compressed the supply time.
Description of the drawings
Fig. 1 is a kind of structure diagram of multi-line laser radar light path system provided by the utility model；
Fig. 2 is a kind of front view of first circuit board provided by the utility model；
Fig. 3 is a kind of left view of first circuit board provided by the utility model；
Fig. 4 is a kind of front view of second circuit board provided by the utility model；
Fig. 5 is a kind of left view of second circuit board provided by the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
A kind of multi-line laser radar light path system provided by the utility model is filled including laser beam emitting device, echo reception
It puts, wherein, laser beam emitting device includes first circuit board, laser emitting module array and microoptical circuit deflection module array, laser
Transmitting module array and microoptical circuit deflection module array are arranged on first circuit board.By previously according to multi-line laser radar
Product design, the angle of the laser that laser beam emitting device is launched is adjusted using microoptical circuit deflection module array, so as to
Position and the angle of adjustment first circuit board are only needed when producing multi-line laser radar, without to the transmitting mould per laser all the way
Block is individually adjusted, and is avoided in debugging process because adjacent road laser interferes with each other so that the problem of light path debugging is difficult,
Make light path debugging simpler, and then also reduce cost of labor, have compressed the supply time.
As shown in Figure 1,2 and 3, the utility model embodiment provides a kind of multi-line laser radar light path system, the system
Including laser beam emitting device 10 and echo reception device 20.Laser beam emitting device 10 is used for more to target object transmitting to be scanned
Shu Jiguang, then for receiving after the multiple laser is irradiated on target object, target object reflects echo reception device 20
Return laser beam.
In the utility model embodiment, laser beam emitting device 10 includes first circuit board 11, laser emitting module array
With microoptical circuit deflection module array.Wherein, laser emitting module array and microoptical circuit deflection module array are arranged at the first electricity
On road plate 11, for laser emitting module array for emitting multiple laser, microoptical circuit deflection module array can then make Laser emission
The laser that module array is launched deflects, so as to adjust the light path of laser.
In production multi-line laser radar, progress optics debugging, without to carrying out list per laser emitting module 12 all the way
Solely adjustment need to only determine position and the angle of first circuit board 11, and be filled using microoptical circuit deflection module array adjustment Laser emission
Put the angle of the laser of 10 transmittings, echo reception device 20 made to receive return laser beam, avoid in debugging process because
Adjacent road laser interferes with each other so that the problem of light path debugging is difficult, makes light path debugging simpler.
In the utility model embodiment, laser emitting module array is made of 16 laser emitting modules 12, each
Laser emitting module 12 can emit beam of laser, so as to which entire laser emitting module array can emit 16 beam laser.Accordingly
, microoptical circuit deflection module array by being formed with the one-to-one 16 microoptical circuit deflection modules 13 of 16 laser emitting modules,
The laser that each microoptical circuit deflection module 13 can emit corresponding laser emitting module 12 deflects, so as to adjust
Save the light path of laser.In the present embodiment, such as 2 × 2mm or 3 × 3mm equidimensions may be employed in microoptical circuit deflection module 13
Minitype reflector, specific size are not limited, can also use prism or other can deflect the device of laser, can be according to reality
Situation selects.
It should be noted that the quantity of laser emitting module 12 and microoptical circuit deflection module 13, which differs, is set to 16, number
Amount can be selected according to actual conditions, but the quantity of laser emitting module 12 and microoptical circuit deflection module 13 needs to correspond to.
In the utility model embodiment, microoptical circuit deflection module array includes the first linear array and the second linear battle array
Row, both for uniform linear array, and are respectively made of 8 microoptical circuit deflection modules 13.First linear array and second
Linear array is separately positioned on two surveys of first circuit board 11, and close to an edge of circuit board.First linear array and
Bilinear array is mutually parallel, and the set-up mode mutually staggered as shown in Figure 3 may be employed, and mutually staggering setting can
So that the distance of the microoptical circuit deflection module 13 on 13 and second linear array of microoptical circuit deflection module on the first linear array
Increase, so as to reduce interfering with each other between adjacent road laser.
In the utility model embodiment, laser emitting module 12 includes laser diode and compression diverging Corner Block List Representation,
In, compression diverging Corner Block List Representation can be used miniature cylindrical mirror, laser diode for emitting laser, compression diverging Corner Block List Representation for pair
The laser that laser diode is launched is collimated, so that the angle of divergence of the laser in the fast axle and slow axis of laser diode
Close to consistent, the more uniform hot spot of formation.
Laser emitting module 12 can also be adopted in addition to the combination of laser diode and compression diverging Corner Block List Representation may be employed
With optical fiber laser, gas laser, solid state laser etc., can specifically be selected according to actual conditions.
In the utility model embodiment, laser beam emitting device 10 further includes first laser conduction unit 14 and collimation lens
Group 15.After microoptical circuit deflection module array is adjusted the light path of laser, after first laser conduction unit 14 receives adjustment
Laser, and by laser conduction to collimation lens set 15, collimation lens set 15 is collimated to conducting the laser come, makes every Shu Jiguang
An approximate circle hot spot is all formed, so as to laser beam divergence smaller, laser energy is concentrated, and detection range can reach 150
Meter or more.
In the utility model embodiment, first laser conduction unit 14 includes the first optical path-deflecting module 141 and second
Optical path-deflecting module 142, the first optical path-deflecting module 141 and the second optical path-deflecting module 142 are arranged on microoptical circuit deflection module
Array and collimation lens set 15.Speculum may be employed in first optical path-deflecting module 141 and the second optical path-deflecting module 142,
Change the light path of laser by speculum, by laser conduction to collimation lens set 15.In addition to using speculum, it can also use
The combination of prism or speculum and prism.
In the utility model embodiment, collimation lens set 15 is made of three pieces non-spherical lens, can also use quantity
More or fewer non-spherical lenses use spherical lens, as long as can play the role of collimating laser.
In the utility model embodiment, echo reception device include focus lens group 23, second laser conduction unit 22,
Photodetector array and second circuit board 21.Wherein, focus lens group 23 is used to return the laser that target object reflects
Ripple is focused, and the energy of return laser beam is made more to concentrate, and can improve the detection range of laser radar, and second laser conduction is single
Member 22 is then conducted for the return laser beam after focus lens group 23 is focused on to photodetector array, photodetector battle array
After row receive return laser beam, then can scanned target object be calculated with receiving the time difference of return laser beam according to transmitting laser
Distance.
In the utility model embodiment, it is additionally provided between photodetector array and second laser conduction unit 22 a piece of
Optical filter 25, return laser beam can be by optical filter 25, and the light of other wavelength can then be filtered out by optical filter 25, so as to improve system
Signal-to-noise ratio increases detection range of the system under strong light.
As shown in Figure 4 and Figure 5, in the utility model embodiment, photodetector array is arranged on second circuit board 21
On, it is made of 16 photodetectors 24, photodetector 24 is corresponded with laser emitting module 12, right with it for receiving
The echo for the laser that the laser emitting module 12 answered emits.Due to the angle of the laser launched of each laser emitting module 12
Degree is different, only right after target object reflection and the processing of focus lens group 23 and second laser conduction unit 22 is passed through
The photodetector 24 answered can receive, according to calculated per the transmitting of laser all the way with receiving time difference each reflection point away from
From, it can be achieved that three-dimensional detection.
In the utility model embodiment, focus lens group 23 is made of three pieces non-spherical lens, can also use quantity
More or fewer non-spherical lenses use spherical lens, as long as can play the role of being focused laser.
Second laser conduction unit 22 is made of two panels speculum (221 and 222), changes the light of laser by speculum
Road, by laser conduction to photodetector array.In addition to using speculum, prism or speculum and rib can also be used
The combination of mirror.
In the utility model embodiment, photodetector array include third linear array and the 4th linear array, two
A linear array is formed respectively by 8 in the equally distributed photodetector 24 of arcuation, and photodetector 24 is towards corresponding laser
The return laser beam of transmitter, in favor of the reception of return laser beam.Third linear array and the 4th linear array are separately positioned on
Two surveys of two circuit boards 21, and close to an edge of second circuit board 21.Third linear array and the second linear array are mutual
It is parallel, and the set-up mode mutually staggered as shown in Figure 5 may be employed, third linear battle array can be made by mutually staggering setting
The distance increase of the photodetector 24 on 24 and the 4th linear array of photodetector on row, so as to reduce adjacent road laser
Between interfere with each other.
When producing the debugging of multi-line laser radar optics, without to being visited per the laser emitting module 12 of laser all the way and photoelectricity
It surveys device 24 to be individually adjusted, need to only determine position and the angle of second circuit board 24, determine position and the angle of first circuit board 11,
Then the angle for the laser that laser beam emitting device 10 is launched is adjusted using microoptical circuit deflection module array, makes corresponding photoelectricity
Detector 24 receives signal, avoids in debugging process because adjacent road laser interferes with each other so that light path debugging is difficult
The problem of, make light path debugging simpler, and then cost of labor is also reduced, have compressed the supply time.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of multi-line laser radar light path system, which is characterized in that including：
For emitting the laser beam emitting device of multiple laser to target object；
For receiving the echo reception device of the return laser beam of the target object reflection；
The laser beam emitting device includes first circuit board, laser emitting module array and microoptical circuit deflection module array；
The laser emitting module array is used to emit the multiple laser；
The microoptical circuit deflection module array is used to adjust the light path of the multiple laser；
The laser emitting module array and microoptical circuit deflection module array are arranged on the first circuit board.
2. multi-line laser radar light path system as described in claim 1, which is characterized in that the laser emitting module array bag
Multiple laser emitting modules are included, each laser emitting module can emit beam of laser；
The microoptical circuit deflection module array includes the multiple and one-to-one microoptical circuit deflection module of the laser emitting module,
The microoptical circuit deflection module is used to adjust the light path of the laser of the corresponding laser emitting module transmitting.
3. multi-line laser radar light path system as claimed in claim 2, which is characterized in that the microoptical circuit deflection module array
Including the first linear array and the second linear array；
First linear array and second linear array are divided into the both sides of the first circuit board, and the two is mutually flat
Row.
4. multi-line laser radar light path system as claimed in claim 2, which is characterized in that the laser beam emitting device further includes
First laser conduction unit and collimation lens set；
The first laser conduction unit is used to conduct the laser after the microoptical circuit deflection module array adjustment；
The laser that the collimation lens set is used to be conducted through the first laser conduction unit collimates.
5. multi-line laser radar light path system as claimed in claim 4, which is characterized in that the first laser conduction unit bag
It includes：
Between the microoptical circuit deflection module array and the collimation lens set, for deflecting the first light of the light path of laser
Road deflection module and the second optical path-deflecting module.
6. multi-line laser radar light path system as claimed in claim 2, which is characterized in that the laser emitting module includes：
For emitting the laser diode of laser；And
Laser for the laser diode to be emitted collimates, so that fast axle of the laser in the laser diode
With the angle of divergence on slow axis Corner Block List Representation is dissipated close to consistent compression.
7. multi-line laser radar light path system as claimed in claim 6, which is characterized in that the compression diverging Corner Block List Representation is micro-
Type cylindrical mirror.
8. multi-line laser radar light path system as described in claim 1, which is characterized in that the echo reception device includes poly-
Focus lens group, second laser conduction unit, photodetector array and second circuit board；
The focus lens group is used to the return laser beam that the target object reflects being focused；
The second laser conduction unit is used for the return laser beam after the focus lens group is focused on and conducts；
The photodetector array is arranged on the second circuit board, is conducted through for receiving the second laser conduction unit
The return laser beam come.
9. multi-line laser radar light path system as claimed in claim 8, which is characterized in that the photodetector array includes
The multiple and one-to-one photodetector of the laser emitting module；
The photodetector is used to receive the return laser beam of the corresponding laser emitting module.
10. multi-line laser radar light path system as claimed in claim 9, which is characterized in that the photodetector array bag
Include the third linear array and the 4th linear array for being divided into the second circuit board both sides；
It is in the equally distributed photodetector of arcuation that the third linear array and the 4th linear array include multiple respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721201354.8U CN207396732U (en) | 2017-09-19 | 2017-09-19 | A kind of multi-line laser radar light path system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721201354.8U CN207396732U (en) | 2017-09-19 | 2017-09-19 | A kind of multi-line laser radar light path system |
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| CN207396732U true CN207396732U (en) | 2018-05-22 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107688186A (en) * | 2017-09-19 | 2018-02-13 | 深圳市镭神智能系统有限公司 | A kind of multi-line laser radar light path system |
| CN109031345A (en) * | 2018-06-13 | 2018-12-18 | 北京经纬恒润科技有限公司 | A kind of MEMS micromirror scanning laser radar system and its scan method |
| CN110596675A (en) * | 2019-08-21 | 2019-12-20 | 深圳奥锐达科技有限公司 | Laser emission device and laser radar system |
| WO2022141634A1 (en) * | 2021-01-04 | 2022-07-07 | 深圳市大疆创新科技有限公司 | Laser emitting device, laser ranging device and movable platform |
-
2017
- 2017-09-19 CN CN201721201354.8U patent/CN207396732U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107688186A (en) * | 2017-09-19 | 2018-02-13 | 深圳市镭神智能系统有限公司 | A kind of multi-line laser radar light path system |
| CN109031345A (en) * | 2018-06-13 | 2018-12-18 | 北京经纬恒润科技有限公司 | A kind of MEMS micromirror scanning laser radar system and its scan method |
| CN110596675A (en) * | 2019-08-21 | 2019-12-20 | 深圳奥锐达科技有限公司 | Laser emission device and laser radar system |
| WO2022141634A1 (en) * | 2021-01-04 | 2022-07-07 | 深圳市大疆创新科技有限公司 | Laser emitting device, laser ranging device and movable platform |
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