CN207037084U - Laser radar - Google Patents
Laser radar Download PDFInfo
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- CN207037084U CN207037084U CN201720595236.3U CN201720595236U CN207037084U CN 207037084 U CN207037084 U CN 207037084U CN 201720595236 U CN201720595236 U CN 201720595236U CN 207037084 U CN207037084 U CN 207037084U
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Abstract
A kind of laser radar is disclosed in embodiment of the present utility model, the laser radar includes：One generating laser, for launching shoot laser；2-D vibration mirror, in vertical direction with the optical path direction that changes the shoot laser in horizontal direction；Semi-transparent semi-reflecting lens, for making the shoot laser from generating laser pass through to the 2-D vibration mirror.The utility model can reduce the cost of laser radar, improve the vertical resolution of laser radar.
Description
Technical field
Detection field is the utility model is related to, more particularly to a kind of laser radar.
Background technology
Laser radar is to detect the radar system of the characteristic quantities such as the position of target, speed to launch laser beam, its work
It is first the signal reflected from target and transmission signal that then will be received to objective emission exploring laser light light beam as principle
It is compared, after making proper treatment, so that it may obtain target for information about, such as target range, orientation, height, speed, appearance
The parameters such as state, even shape.
Laser radar of the prior art, if to realize 3-D scanning, that is, the scanning of 360 scopes is realized, it is necessary to multiple
Generating laser.The cost of the generating laser used in laser radar is higher, therefore the multiple laser of use of the prior art
The cost of the laser radar of transmitter is also very high.
Utility model content
A kind of laser radar is provided in the utility model embodiment, the cost of laser radar can be reduced, improves laser thunder
The vertical resolution reached.
In order to solve the above-mentioned technical problem, the utility model embodiment discloses following technical scheme：
On the one hand, there is provided a kind of laser radar, including：
One generating laser, for launching shoot laser；
Semi-transparent semi-reflecting lens, for making the shoot laser from generating laser pass through to 2-D vibration mirror；
2-D vibration mirror, in vertical direction with the optical path direction that changes the shoot laser in horizontal direction.
Optionally, the 2-D vibration mirror is additionally operable to change in the vertical direction and the horizontal direction the light path side of reflection laser
To, wherein, the reflection laser is laser of the shoot laser after testee reflects.
Optionally, the semi-transparent semi-reflecting lens are additionally operable to make the reflection laser from the 2-D vibration mirror reflex to reception
Device.
Optionally, the laser radar also includes receiver, described for receiving the reflection laser from semi-transparent semi-reflecting lens
Reflection laser is the laser after testee reflection.
Optionally, the receiver is planar array type receiver.
Optionally, the laser radar also includes collimation unit, be arranged at the generating laser with it is described semi-transparent semi-reflecting
Between mirror, for collimating the shoot laser of the laser transmitter projects.
Optionally, the laser radar also includes focusing unit, is arranged between the receiver and semi-transparent semi-reflecting lens, uses
In focusing on the reflection laser from semi-transparent semi-reflecting lens, the reflection laser after the focusing is received by the receiver.
Disclose a kind of laser radar in embodiment of the present utility model, including a generating laser, 2-D vibration mirror and
Semi-transparent semi-reflecting lens, can be with cost-effective because the utility model embodiment has only used a generating laser；Meanwhile this reality
A shoot laser of a laser transmitter projects is set to change in vertical direction using 2-D vibration mirror with new pattern laser radar
Light path, because the reverse speed of 2-D vibration mirror is exceedingly fast, therefore the laser beam being distributed in vertical direction can be a lot, so as to
To improve the vertical resolution of laser radar；2-D vibration mirror can make the shoot laser of single laser transmitter projects in level side
Change light path upwards, so as to realize the 3-D scanning of 360 deg.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
In the required accompanying drawing used be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other accompanying drawings.
Fig. 1 show the structural representation of the laser radar of the utility model embodiment；
Fig. 2 show single-point laser and passes through the hot spot figure after 2-D vibration mirror；
Fig. 3 show the structural representation of the laser radar of the utility model embodiment.
Embodiment
The utility model following examples provide a kind of laser radar, can reduce the cost of laser radar, improve laser
The vertical resolution of radar.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clear, complete description, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1 show the schematic diagram of the laser radar of the utility model embodiment, as shown in figure 1, the laser radar bag
Include：
One generating laser 110, for launching shoot laser；
Semi-transparent semi-reflecting lens 120, for making the shoot laser from generating laser pass through to 2-D vibration mirror；
2-D vibration mirror 130, in vertical direction with the optical path direction that changes the shoot laser in horizontal direction.
2-D vibration mirror 130 needs load driver at work, and at the resonant frequency fx, the minute surface of 2-D vibration mirror 130 is two for work
Reversed at a high speed on individual direction of principal axis, by laser beam by spot scan into face.
Conventional galvanometer can be galvanometer (MEMS, Micro-Electro-Mechanical System), or can be machine
Tool formula galvanometer, or can be other functional units with same or similar function.
Fig. 2 show single-point laser by the hot spot figure after 2-D vibration mirror, as shown in Fig. 2 the point of intersection of every two curves
That is a hot spot.
Disclose a kind of laser radar in embodiment of the present utility model, including a generating laser, 2-D vibration mirror and
Semi-transparent semi-reflecting lens, because the utility model embodiment has only used a generating laser, because can be with cost-effective；Meanwhile
The utility model laser radar makes a shoot laser of a laser transmitter projects in vertical direction using 2-D vibration mirror
Change light path, because the reverse speed of 2-D vibration mirror is exceedingly fast, therefore the laser beam being distributed in vertical direction can be a lot, from
And the vertical resolution of laser radar can be improved；2-D vibration mirror can make the shoot laser of single laser transmitter projects in water
Square upwards change light path, so as to realize the 3-D scanning of 360 deg.
In the utility model embodiment, 2-D vibration mirror 120, which is additionally operable to change in the vertical direction and the horizontal direction to reflect, to swash
The optical path direction of light, wherein, the reflection laser is laser of the shoot laser after the reflection of testee 100.
The semi-transparent semi-reflecting lens 120 are additionally operable to make the reflection laser from the 2-D vibration mirror reflex to receiver.
Due to laser spread speed quickly, therefore in the utility model embodiment, transmitting laser is anti-through testee 100
In 10us internal reflections laser from backtracking after penetrating, therefore, for two-dimentional MEMS lens 130, shoot laser and should
The optical path direction of reflection laser corresponding to shoot laser is opposite, path is identical, so reflection laser can be saturating by two-dimentional MEMS
Mirror 130 reaches semi-transparent semi-reflecting lens 120, and reflection laser can be reflexed to receiver by semi-transparent semi-reflecting lens 120.
In Fig. 1, shoot laser is indicated by the solid line, and reflection laser is represented by dashed line.For clearer display shoot laser
And reflection laser, a certain distance has been pulled open between two lines.In practice, shoot laser and reflection laser are infinitely close to weight
Close, two lines, which should also be, is infinitely close to coincidence.
Fig. 3 show the schematic diagram of the laser radar of the utility model embodiment, as shown in figure 3, the laser radar is also
Including receiver 140, collimation unit 150 and focusing unit 160.
Receiver 140 is used to receive the reflection laser from semi-transparent semi-reflecting lens 120, and the reflection laser is testee
Laser after 100 reflections.
The receiver 140 is planar array type receiver.
Planar array type receiver can be APD (Avalanche Photo Diode, avalanche diode) array.APD is at one
It is evenly distributed in plane, after reflection laser is received by APD array, 3D rendering is generated after processor computing.
Collimation unit 150, it is arranged between the generating laser 110 and the semi-transparent semi-reflecting lens 120, for collimating
State the shoot laser of the transmitting of generating laser 110.
In the utility model embodiment, collimation unit 150 can be collimating mirror, and collimating mirror can be simple lens, can also
The lens group being made up of multi-disc lens.
If the shoot laser sent of laser 110 arrives collimation unit 150 again after the deflection of 2-D vibration mirror 130, due to
Single-point laser can be deflected into the laser beam in a face by 2-D vibration mirror, equivalent to enter collimating mirror be wide-angle incidence
Light, to correct large angle incidence light needs multi-disc eyeglass to correct, and adds product cost, also increases design difficulty, can also
Cause the decay of shoot laser.Therefore in the utility model embodiment, by two after the directly collimated collimation of mirror 150 of transmitting laser
Galvanometer 130 is tieed up to deflect, the reflection of light does not introduce the factors such as aberration, simplifies design difficulty, comes without multi-disc eyeglass is introduced
Correction, can be with cost-effective.
In the utility model embodiment, focusing unit 160 is arranged between the receiver 140 and semi-transparent semi-reflecting lens 120,
For focusing on the reflection laser from semi-transparent semi-reflecting lens 120, the reflection laser after the focusing is received by the receiver
140。
In the utility model embodiment, focusing unit 160 can be focus lamp, and focus lamp can be simple lens, can also
The lens group being made up of multi-disc lens.
The laser radar of the utility model embodiment can reduce the cost of laser radar, improve the vertical resolution of laser radar
Rate.
Embodiment of the present utility model discloses a kind of laser radar, the laser radar include a generating laser,
2-D vibration mirror and semi-transparent semi-reflecting lens, because the utility model embodiment has only used a generating laser, because can save
Cost；Meanwhile the utility model laser radar makes a shoot laser of a laser transmitter projects exist using 2-D vibration mirror
Change light path in vertical direction, because the reverse speed of 2-D vibration mirror is exceedingly fast, therefore the laser beam being distributed in vertical direction
Can be a lot, so as to improve the vertical resolution of laser radar；2-D vibration mirror can make single laser transmitter projects
Shoot laser changes light path in the horizontal direction, so as to realize the 3-D scanning of 360 deg.
Those skilled in the art can be understood that the technology in the utility model embodiment can add by software
The mode of required common hardware realizes that common hardware includes universal integrated circuit, universal cpu, general-purpose storage, universal element
Device etc., naturally it is also possible to which application specific integrated circuit, dedicated cpu, private memory, special components and parts etc. are included by specialized hardware
To realize, but the former is more preferably embodiment in many cases.Based on such understanding, the skill in the utility model embodiment
The part that art scheme substantially contributes to prior art in other words can be embodied in the form of software product, the calculating
Machine software product can be stored in storage medium, as read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), magnetic disc, CD etc., including some instructions are causing a computer equipment
(can be personal computer, server, either network equipment etc.) performs each embodiment of the utility model or embodiment
Method described in some parts.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment stressed is the difference with other embodiment.It is real especially for system
For applying example, because it is substantially similar to embodiment of the method, so description is fairly simple, related part is referring to embodiment of the method
Part explanation.
Above-described the utility model embodiment, does not form the restriction to scope of protection of the utility model.It is any
Made within spirit of the present utility model and principle modifications, equivalent substitutions and improvements etc., should be included in the utility model
Protection domain within.
Claims (7)
- A kind of 1. laser radar, it is characterised in that including：One generating laser, for launching shoot laser；Semi-transparent semi-reflecting lens, for making the shoot laser from generating laser pass through to 2-D vibration mirror；2-D vibration mirror, in vertical direction with the optical path direction that changes the shoot laser in horizontal direction.
- 2. laser radar as claimed in claim 1, it is characterised in that the 2-D vibration mirror is additionally operable in vertical direction and level Change the optical path direction of reflection laser on direction, wherein, the reflection laser is shoot laser swashing after testee reflects Light.
- 3. laser radar as claimed in claim 2, it is characterised in that the semi-transparent semi-reflecting lens are additionally operable to make described in described come from The reflection laser of 2-D vibration mirror reflexes to receiver.
- 4. laser radar as claimed in claim 3, it is characterised in that the laser radar also includes receiver, for receiving Reflection laser from semi-transparent semi-reflecting lens, the reflection laser are the laser after testee reflection.
- 5. laser radar as claimed in claim 4, it is characterised in that the receiver is planar array type receiver.
- 6. laser radar as claimed in claim 5, it is characterised in that the laser radar also includes collimation unit, is arranged at Between the generating laser and the semi-transparent semi-reflecting lens, for collimating the shoot laser of the laser transmitter projects.
- 7. laser radar as claimed in claim 6, it is characterised in that the laser radar also includes focusing unit, is arranged at Between the receiver and semi-transparent semi-reflecting lens, for focusing on the reflection laser from semi-transparent semi-reflecting lens, after the focusing Reflection laser is received by the receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720595236.3U CN207037084U (en) | 2017-05-25 | 2017-05-25 | Laser radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720595236.3U CN207037084U (en) | 2017-05-25 | 2017-05-25 | Laser radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207037084U true CN207037084U (en) | 2018-02-23 |
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Family Applications (1)
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| CN201720595236.3U Active CN207037084U (en) | 2017-05-25 | 2017-05-25 | Laser radar |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167787A (en) * | 2017-05-25 | 2017-09-15 | 深圳市速腾聚创科技有限公司 | Laser radar and laser radar control method |
| WO2019165935A1 (en) * | 2018-02-27 | 2019-09-06 | Suteng Innovation Technology Co., Ltd | Stationary wide-angle lidar system |
-
2017
- 2017-05-25 CN CN201720595236.3U patent/CN207037084U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167787A (en) * | 2017-05-25 | 2017-09-15 | 深圳市速腾聚创科技有限公司 | Laser radar and laser radar control method |
| WO2019165935A1 (en) * | 2018-02-27 | 2019-09-06 | Suteng Innovation Technology Co., Ltd | Stationary wide-angle lidar system |
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