CN209673991U - Laser radar optical module - Google Patents
Laser radar optical module Download PDFInfo
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- CN209673991U CN209673991U CN201822166274.4U CN201822166274U CN209673991U CN 209673991 U CN209673991 U CN 209673991U CN 201822166274 U CN201822166274 U CN 201822166274U CN 209673991 U CN209673991 U CN 209673991U
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Abstract
The utility model discloses a kind of laser radar optical modules comprising luminescence component, the first reflecting mirror and receiving unit；Wherein luminescence component issues laser；First reflecting mirror reflects the laser to detecting target with laser described in first angle range reception and with second angle range, detection target is transmitted to first reflecting mirror after reflecting the laser, and the reflecting mirror is issued the reflected light with the first angle range after the reflected light that the detection target reflects with second angle range reception；Receiving unit is located at that first reflecting mirror is ipsilateral, and the receiving unit receives the reflected light that first reflecting mirror is issued with the first angle range with the luminescence component.A kind of laser radar optical module according to the present utility model, realizes the micromation of laser radar optical module, reduces the volume of mechanical-optical setup in laser radar.
Description
Technical field
The utility model relates to laser radar technique fields, more particularly to a kind of laser radar optical module.
Background technique
It is to receive object, using optical system as the light thunder of antenna that laser radar, which is using laser as carrier wave, using photodetector,
It reaches, it is by objective emission laser beam, after then being handled received from the reflected echo-signal of target, so that it may
Obtain detection target for information about.It has the characteristics that high-resolution, strong antijamming capability, small in size, light-weight.
Mechanical scanning type is one of the most common type in laser radar, controls laser in direction in space by mechanical scanning
Its scanning function is realized in movement, and optical system is the key that realize laser propagated portion as desired in radar system
Point, its structure type determines the structure type of entire laser radar system.The difficult point of mechanical scanning type laser radar is
How light, machine effectively to be combined, realizes the tight of laser emission optical system, laser pick-off optical system and mechanical scan arrangement part
The type that gathers layout.
Utility model content
The utility model realizes laser thunder mainly solving the technical problems that provide a kind of laser radar optical module
Up to the micromation of optical module, the volume of mechanical-optical setup in laser radar is reduced.
In order to solve the above technical problems, the technical solution that the utility model uses is: providing a kind of laser radar light
Learn component comprising:
Luminescence component, for issuing laser；
First reflecting mirror for laser described in first angle range reception, and is reflected with second angle range described
Laser to detecting target, and with the second angle range reception from the detection target reflect the laser after reflection
Light is issued the reflected light with the first angle range；
It is ipsilateral that receiving unit, the receiving unit and the luminescence component are located at first reflecting mirror, the reception group
Part is for receiving the reflected light that first reflecting mirror is issued with the first angle range.
In order to solve the above technical problems, another technical solution that the utility model uses is: providing a kind of laser radar
Optical module comprising the second reflecting mirror, second reflecting mirror is between the luminescence component and first reflecting mirror
Optical path in, for reflecting the laser that the luminescence component issues to first reflecting mirror, first reflecting mirror with
The light that the first angle range issues the reflected light passes through second mirror environment space and reaches the reception
Component.
In order to solve the above technical problems, another technical solution that the utility model uses is: providing a kind of laser radar
Optical module, second reflecting mirror is right-angle prism, and the inclined-plane of the right-angle prism is issued for reflecting the luminescence component
The laser to first reflecting mirror.
In order to solve the above technical problems, the utility model use another technical solution be: second reflecting mirror with
The area ratio of the reflecting surface of first reflecting mirror is less than or equal to 1:5.
In order to solve the above technical problems, another technical solution that the utility model uses is: providing a kind of laser radar
Optical module, the luminescence component include laser emitter and the first collimating mirror, and it is quasi- that the laser emitter is located at described first
For issuing the laser on the focal plane of straight mirror, the laser emits after first collimating mirror collimation to described first instead
Penetrate mirror.
In order to solve the above technical problems, another technical solution that the utility model uses is: providing a kind of laser radar
Optical module, the receiving unit include laser pickoff and the second collimating mirror, and it is quasi- that the laser pickoff is located at described second
On the focal plane of straight mirror, the laser reflects again after first reflecting mirror reflection second described in directive through the detection target
Collimating mirror, the laser are received after second collimating mirror collimation by the laser pickoff.
In order to solve the above technical problems, another technical solution that the utility model uses is: providing a kind of laser radar
The area ratio of optical module, the reflecting surface of first reflecting mirror and the second collimating mirror mirror surface is more than or equal to 4:1.
Second reflecting mirror and the laser emitter are located at first collimating mirror two sides and are located at through described first
In the optical path of laser after collimating mirror collimation, the reflecting surface of first reflecting mirror and second reflecting mirror it is parallel and not with institute
It is parallel or vertical to state the laser optical path after the first collimating mirror collimation, the laser is after second reflecting mirror reflection again through the
Target is detected described in normal sheaf after the reflection of one reflecting mirror.
In order to solve the above technical problems, another technical solution that the utility model uses is: providing a kind of laser radar
Optical module, the laser radar optical module are additionally provided with rotary tooling, and first reflecting mirror is located on the rotary tooling
And it can be rotated 360 ° with the rotary tooling.
In order to solve the above technical problems, another technical solution that the utility model uses is: providing a kind of laser radar
Optical module, the laser pickoff are one of photodetector, silicon photocell, imaging detector.The laser hair
Emitter is one of semiconductor laser, optical fiber laser, solid state laser, LED.
In order to solve the above technical problems, another technical solution that the utility model uses is: providing a kind of laser radar
Optical module, which is characterized in that further include sleeve, the sleeve includes first part, second part and the third of hollow setting
Part, the first part, the second part and the Part III are connected to each other in zigzag；The laser emitter, institute
It states diversing lens and first plane mirror is located in the hollow portion of the first part, the second part and the third portion
The corner of connection is divided to be equipped with notch, the turning is abutted with the reflecting surface of second reflecting mirror, described in the laser injection
The hollow portion that second part is injected after reflecting on the reflecting surface of first reflecting mirror after the hollow portion of first part, by institute
It is projected after stating the reflection of the second reflecting mirror from the hollow portion of the Part III.
The beneficial effects of the utility model are: being in contrast to the prior art, a kind of laser radar of the utility model
Optical module can utilize the same side space since to be located at first reflecting mirror ipsilateral for receiving unit and the luminescence component
The receiving unit and the luminescence component are accommodated simultaneously, saves reflecting mirror other side space, and can further integrate described connect
Component and the luminescence component are received, overall volume is further decreased, realizes the micromation of laser radar optical module,
Reduce the volume of mechanical-optical setup in laser radar.
Detailed description of the invention
Fig. 1 is one example structure schematic diagram of the utility model laser radar optical module；
Fig. 2 is another example structure schematic diagram of the utility model laser radar optical module；
Fig. 3 is another example structure schematic diagram of the utility model laser radar optical module；
Specific embodiment
It is right as follows in conjunction with drawings and embodiments to keep the purpose, technical solution and effect of the application clearer, clear
The application is further described.
Referring to FIG. 1, in one embodiment of laser radar optical module of the utility model, laser radar optical module packet
It includes: luminescence component 10, the first reflecting mirror 3 and receiving unit 20, wherein luminescence component 10 is for issuing laser, the first reflecting mirror 3
Laser for being issued with first angle range reception luminescence component 10, and laser is reflected to detecting mesh with second angle range
Mark 5, and the reflected light with second angle range reception after detection 5 reflection laser of target, will be reflected with first angle range
Light issues；Receiving unit 20 and luminescence component 10 are located at that the first reflecting mirror 3 is ipsilateral, and receiving unit 20 is for receiving the first reflecting mirror
3 reflected lights issued with first angle range.
Specifically, in the present embodiment, luminescence component 10 and receiving unit 20 are located at reflecting mirror 3 please further refer to Fig. 1
Ipsilateral and the two is on the same line or parallel to each other.Luminescence component 10 includes laser emitter 1 and the first collimating mirror 2, laser
Transmitter 1 is located on the focal plane of the first collimating mirror 2 for issuing laser, laser after the first collimating mirror 2 collimation transmitting to the
One reflecting mirror 3, in the present embodiment, laser emitter 1 be semiconductor laser, optical fiber laser, solid state laser, in LED
It is a kind of.
Further, the laser that the first reflecting mirror 3 is issued with the first collimating mirror of first angle range reception 2；It is anti-first
It penetrates after the laser that the first collimating mirror 2 of reception of mirror 3 issues and target 5 is detected extremely with transmitting after the reflection of second angle range.
Wherein, the first angle range refer to the first reflecting mirror 3 with swashing after its received collimation from the first collimating mirror 2
Light out of plumb and it is not parallel when the first reflecting mirror 3 angle, which can be with the first reflecting mirror 3 relative to through the first collimating mirror
The angle definition of laser after 2 collimations, for example, first angle may range from the first reflecting mirror 3 relative to through the first collimating mirror 2
The angle of laser after collimation is 1 °~89 °.Further, the laser issued after the first collimating mirror 2 collimates is anti-through first
The laser penetrated after mirror 3 reflects when being totally reflected, after the first collimating mirror 2 collimation could be all after the first reflecting mirror 3 reflects
Transmitting is to detection target 5, and the first angle range i.e. the first reflecting mirror 3 is relative to swashing after the first collimating mirror 2 collimation at this time
Be more than or equal to should for its incidence angle when the angle of light need to meet the Laser emission after the first collimating mirror 2 collimation to the first reflecting mirror 3
The critical angle of first reflecting mirror 3.Further, since through the first collimating mirror 1 collimation after laser the first reflecting mirror 3 of directive when, hair
Raw reflection, then directive is visited after the reflection of the first reflecting mirror 3 after the first reflecting mirror of laser directive 3 after the first collimating mirror 1 collimation
The laser for surveying target 5 is orthogonal, then the second angle range and the first angle range are mutually remaining.
Further, emit after being reflected after the laser that the reception of detection target 5 emits after the reflection of the first reflecting mirror 3
To the first reflecting mirror 3, the first reflecting mirror 3 with second angle range reception from detection target 5 reflect after reflected light and with the
One angular range issues reflected light to receiving unit 20.In the present embodiment, receiving unit 20 includes laser pickoff 7 and the
Two collimating mirrors 6, laser pickoff 7 are located on the focal plane of the second collimating mirror 6, and laser is anti-through first again through the reflection of detection target 5
The second collimating mirror of directive 6 after mirror 3 reflects is penetrated, laser is received after the second collimating mirror 6 collimation by laser pickoff 7.The present embodiment
In, laser pickoff 7 is one of photodetector, silicon photocell, imaging detector.In addition, shine group in the present embodiment
Part 10 and receiving unit 20 are located at that reflecting mirror 3 is ipsilateral and the two is on the same line or parallel to each other, what luminescence component 10 issued
Laser is transmitted to detection target 5 after the reflection of the first reflecting mirror 3, and the first reflecting mirror of directive 3 after detection target 5 reflects, first is anti-
Directive receiving unit 20 after mirror 3 reflects is penetrated, the laser and the received laser of receiving unit 20 of the luminescence component 10 transmitting are mutually equal
Row.
Further, the laser radar optical module in the present embodiment is additionally provided with rotary tooling 4, and the first reflecting mirror 3 is located at
It can rotate 360 ° on rotary tooling 4 and with rotary tooling 4.When laser radar optical module is additionally provided with rotary tooling 4, position
360 ° of rotations without dead angle can be carried out with the rotary shaft Z axis of rotary tooling 4 in the first reflecting mirror 3 on the rotary tooling 4, then
Comprehensive the laser issued from luminescence component 10 can all be reflexed to detection target 5, improve laser radar optical module
The efficiency of light energy utilization saves the energy.
A kind of laser radar optical module according to the present utility model comprising luminescence component, the first reflecting mirror and reception
Component, wherein it is ipsilateral that receiving unit and luminescence component are located at the first reflecting mirror, can be accommodated simultaneously using the same side space described in
Receiving unit and the luminescence component save reflecting mirror other side space, and can further integrate the receiving unit and described
Luminescence component further decreases overall volume, realizes the micromation of laser radar optical module, reduces laser radar
The volume of middle mechanical-optical setup.
Referring to FIG. 2, in a kind of another embodiment of laser radar optical module of the utility model, structure and working principle
Process is substantially same as the previously described embodiments, does not do excessively repeat herein.The difference lies in that laser radar optical module further includes
Two-mirror 8, the second reflecting mirror 8 is located in the optical path between luminescence component 10 and the first reflecting mirror 3, for reflecting luminescence component
To the first reflecting mirror 3, reflected light is issued with first angle range and passes through the second reflection 10 laser issued by the first reflecting mirror 3
8 surrounding space of mirror reaches receiving unit 20.In the present embodiment, luminescence component 10 is ipsilateral in the first reflecting mirror 3 with receiving unit 20,
But luminescence component 10 and receiving unit 20 are in a certain angle；Optimal, luminescence component 10 and the second reflecting mirror 8 are in horizontal linear
On, receiving unit 20 and the second reflecting mirror 8 are in vertical straight line, and luminescence component 10 is vertical with the second reflecting mirror 8.
Specifically, the first reflecting mirror 3 is located at 2 two sides of the first collimating mirror with laser emitter 1 and is located at through the first collimating mirror 2
In the optical path of laser after collimation, the reflecting surface of the first reflecting mirror 3 and the second reflecting mirror 8 is parallel and not and through the first collimating mirror 2
Laser optical path after collimation is parallel or vertical, and laser is penetrated after the reflection of the first reflecting mirror 3 in parallel again after the reflection of the second reflecting mirror 8
To detection target 5.Detection target 5 reflects its first reflecting mirror of normal sheaf 3, first after reflecting the laser received
By its second collimating mirror of directive 6 after the reflection of mirror 3 laser；Preferably, the reflection of the first reflecting mirror 3 is reflected back from detection target 5
8 surrounding space of the second reflecting mirror is passed through after laser reaches the second collimating mirror 6.Second collimating mirror 6 receives above-mentioned from the first reflecting mirror 3
Emit after being assembled after laser after reflection to the laser pickoff 7 being located on its focal plane.
Further, in the present embodiment, the area ratio of the reflecting surface of the second collimation lens 6 and the first reflecting mirror be greater than etc.
In 4:1.Second reflecting mirror 8 is right-angle prism, the right-angle prism be used for reflect luminescence component 10 sending laser to first reflection
Mirror 3；The reflecting surface of area ratio, that is, right-angle prism 8 and the first reflecting mirror 3 of the reflecting surface of first reflecting mirror 3 and the second reflecting mirror
Area ratio is less than or equal to 1:5.Further, i.e. right-angle prism 8 and the area ratio of the reflecting surface of the first reflecting mirror 3 is the smaller the better,
When the ratio is smaller, the area of the reflecting surface of corresponding right-angle prism 8 accordingly can be smaller, and the reflecting surface of right-angle prism 8
The more few then corresponding laser radar optical module energy consumption of the energy of the laser of its smaller loss of area is fewer；But right-angle prism 8
The area of reflecting surface can not be arranged infinitely small, depending on concrete foundation actual conditions.
Further, since laser radar optical module further includes the second reflecting mirror in the present embodiment, the second reflecting mirror is located at hair
In optical path between optical assembly and the first reflecting mirror, in this way, luminescence component is vertically arranged with receiving unit, luminescence component and second
Reflecting mirror can be set between receiving unit and the first reflecting mirror, according to situation adjust these components size and it is opposite away from
From further realizing laser radar optical module so that the laser radar optical assembly structure of the utility model is more compact
Micromation, further reduce the volume of mechanical-optical setup in laser radar.
Referring to FIG. 3, in a kind of another embodiment of laser radar optical module of the utility model, structure and working principle
Process is substantially same as the previously described embodiments, does not do excessively repeat herein.The difference lies in that the laser radar optics in the present embodiment
Tissue, further includes sleeve 9, and sleeve 9 includes first part 91, second part 92 and the Part III 93 of hollow setting, and first
91, second part 92 and Part III 93 is divided to be connected to each other in zigzag；Laser emitter 1, the first collimating mirror 2 and the second reflection
Mirror 8 is located in the first hollow portion 911 of first part 91, and the corner that second part 92 and Part III 93 connect, which is equipped with, to be lacked
Mouthful, turning is abutted with the reflecting surface of the first reflecting mirror 3, anti-second after the first hollow portion 911 of laser injection first part 91
It penetrates on the reflecting surface of mirror 8 after reflecting after the second hollow portion 921 for injecting second part 92 after the reflection of the first reflecting mirror 3 from third
The third hollow portion 931 of part 93 projects.In the present embodiment, sleeve 9 is opaque non-reflective material, is issued from luminescence component 10
Laser in sleeve 9 through the second reflecting mirror 8 and the first reflecting mirror 3 reflection after directive detect target 5, detection target 5 reflect
The light come can then make after the reflection of the first reflecting mirror 3 from 9 surrounding directive receiving unit 20 of sleeve due to the blocking of sleeve 9
From detection the reflected light of target 5 through the first reflecting mirror 3 reflection after directly from the surrounding directive receiving unit 20 of sleeve 9 without
The test effect that rear portion is divided directive receiving unit 20 and influences laser radar optical module can be reflected by the second reflecting mirror of mirror 8 again.
Further, and since the reflecting surface of the second reflecting mirror 8 is smaller, correspondingly, second reflecting mirror 8 its volume is also smaller, corresponding hair
10 small volume of optical assembly, in this way, the volume of sleeve 9 may also set up smaller further do not influence laser radar optical module
The compactedness of structure.
A kind of laser radar optical module of the utility model comprising luminescence component, the first reflecting mirror and receiving unit,
Since to be located at the first reflecting mirror ipsilateral for receiving unit and luminescence component, can be accommodated simultaneously using the same side space receiving unit and
Luminescence component saves reflecting mirror other side space, and can further integrate receiving unit and luminescence component, so that overall volume can
To further decrease, the micromation of laser radar optical module is realized, reduce the volume of mechanical-optical setup in laser radar.
The foregoing is merely presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize this
Equivalent structure or equivalent flow shift made by application specification and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field is also included in the patent protection scope of the utility model.
Claims (10)
1. a kind of laser radar optical module characterized by comprising
Luminescence component, for issuing laser；
First reflecting mirror is used for laser described in first angle range reception, and reflects the laser with second angle range
To detection target, and the reflected light after the laser is reflected from the detection target with the second angle range reception, with
The first angle range issues the reflected light；
It is ipsilateral that receiving unit, the receiving unit and the luminescence component are located at first reflecting mirror, and the receiving unit is used
In the reflected light that reception first reflecting mirror is issued with the first angle range.
2. laser radar optical module according to claim 1, which is characterized in that including the second reflecting mirror, described second
Reflecting mirror is in the optical path between the luminescence component and first reflecting mirror, for reflecting the luminescence component sending
The reflected light is issued and is worn with the first angle range by the laser to first reflecting mirror, first reflecting mirror
It crosses second mirror environment space and reaches the receiving unit.
3. laser radar optical module according to claim 2, which is characterized in that second reflecting mirror is right-angled edge
Mirror, the inclined-plane of the right-angle prism are used to reflect the laser that the luminescence component issues to first reflecting mirror.
4. laser radar optical module according to claim 2, which is characterized in that second reflecting mirror and described first
The area ratio of the reflecting surface of reflecting mirror is less than or equal to 1:5.
5. laser radar optical module according to claim 2, which is characterized in that the luminescence component includes Laser emission
Device and the first collimating mirror, the laser emitter are located on the focal plane of first collimating mirror for issuing the laser, institute
Laser is stated to emit after first collimating mirror collimation to first reflecting mirror.
6. laser radar optical module according to claim 5, which is characterized in that the receiving unit includes laser pick-off
Device and the second collimating mirror, the laser pickoff are located on the focal plane of second collimating mirror, and the laser is through the detection
The second collimating mirror described in directive, the laser are quasi- through second collimating mirror after first reflecting mirror reflection again for target reflection
It is received after straight by the laser pickoff.
7. laser radar optical module according to claim 6, which is characterized in that the reflecting surface of first reflecting mirror with
The area ratio of the second collimating mirror mirror surface is more than or equal to 4:1；
Second reflecting mirror is located at first collimating mirror two sides and is located at the laser emitter to be collimated through described first
In the optical path of laser after mirror collimation, the reflecting surface of first reflecting mirror and second reflecting mirror is parallel and not and described in warp
Laser optical path after first collimating mirror collimation is parallel or vertical, and the laser is anti-through first again after second reflecting mirror reflection
It penetrates after mirror reflects and detects target described in normal sheaf.
8. laser radar optical module according to claim 7, which is characterized in that the laser pickoff is photodetection
One of device, silicon photocell, imaging detector, the laser emitter are semiconductor laser, optical fiber laser, solid
One of laser, LED.
9. laser radar optical module according to claim 1, which is characterized in that the laser radar optical module is also set
There is rotary tooling, first reflecting mirror is located on the rotary tooling and can rotate 360 ° with the rotary tooling.
10. according to laser radar optical module described in claim 5~8 any one, which is characterized in that it further include sleeve,
The sleeve includes first part, second part and the Part III of hollow setting, the first part, the second part and
The Part III is connected to each other in zigzag；The laser emitter, first collimating mirror and second reflecting mirror are located at
In first hollow portion of the first part, the corner of the second part and Part III connection is equipped with notch, institute
It states turning to abut with the reflecting surface of second reflecting mirror, the laser is injected after the hollow portion of the first part described
The second hollow portion that second part is injected after reflecting on the reflecting surface of two-mirror, from institute after being reflected by first reflecting mirror
The third hollow portion for stating Part III projects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822166274.4U CN209673991U (en) | 2018-12-21 | 2018-12-21 | Laser radar optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822166274.4U CN209673991U (en) | 2018-12-21 | 2018-12-21 | Laser radar optical module |
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| CN209673991U true CN209673991U (en) | 2019-11-22 |
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| CN201822166274.4U Active CN209673991U (en) | 2018-12-21 | 2018-12-21 | Laser radar optical module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021197403A1 (en) * | 2020-04-03 | 2021-10-07 | 深圳煜炜光学科技有限公司 | Lidar for long-distance detection and detection method therefor |
| CN114563773A (en) * | 2020-11-27 | 2022-05-31 | 锐驰智光(苏州)科技有限公司 | Laser radar capable of reducing blind area |
-
2018
- 2018-12-21 CN CN201822166274.4U patent/CN209673991U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021197403A1 (en) * | 2020-04-03 | 2021-10-07 | 深圳煜炜光学科技有限公司 | Lidar for long-distance detection and detection method therefor |
| CN114563773A (en) * | 2020-11-27 | 2022-05-31 | 锐驰智光(苏州)科技有限公司 | Laser radar capable of reducing blind area |
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