CN215867103U - Laser radar detection equipment - Google Patents
Laser radar detection equipment Download PDFInfo
- Publication number
- CN215867103U CN215867103U CN202122099432.0U CN202122099432U CN215867103U CN 215867103 U CN215867103 U CN 215867103U CN 202122099432 U CN202122099432 U CN 202122099432U CN 215867103 U CN215867103 U CN 215867103U
- Authority
- CN
- China
- Prior art keywords
- bracket
- light
- circuit board
- lens
- support
- 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
Images
Landscapes
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The application discloses laser radar detection equipment includes: the circuit board, the light emission subassembly, and the light receiving subassembly, wherein, the light emission subassembly and circuit board fixed connection, be used for along predetermineeing optical axis transmission laser, light receiving subassembly and circuit board fixed connection, the light receiving subassembly includes receiving lens, and the detection device who is connected with the circuit board electricity, detection device has at least one detection plane and receiving lens and corresponds, the reflected light that the laser that the light emission subassembly was launched corresponds is imaged on the detection plane through receiving lens, and the optical axis of light emission subassembly transmission laser, detection device's detection plane, and the main plane of lens is handed in a bit, in order to obtain clear and stable facula imaging effect.
Description
Technical Field
The application relates to the field of optical equipment, in particular to laser radar detection equipment.
Background
At present, people often use laser radar to perform non-contact detection on a target object, and the working principle of the system is to transmit detection laser to the target object, then receive transmitted light waves, and obtain related information of the target object according to the transmitted light waves, such as distance, direction, speed, even shape and other parameters. However, for target objects with different distances, the imaging effect of the light spot is different, so that the detection accuracy is unstable.
Therefore, how to obtain clear and stable spot imaging effect is a hot topic that those skilled in the art are studying.
Disclosure of Invention
The application provides a laser radar detection equipment aims at solving the problem of how to obtain clear and stable facula formation of image effect.
The application provides a laser radar detection device, includes:
a circuit board;
the light emitting component is fixedly connected with the circuit board and used for emitting laser along a preset optical axis;
the light receiving assembly is fixedly connected with the circuit board and comprises a receiving lens and a detection device electrically connected with the circuit board, the detection device is provided with at least one detection plane corresponding to the receiving lens, and the reflected light corresponding to the laser emitted by the light emitting assembly is imaged on the detection plane through the receiving lens;
the preset optical axis of the laser emitted by the light emitting component, the detection plane of the detection device and the main plane of the lens are intersected at one point.
Optionally, the light receiving assembly further includes a lens mounting member fixedly connected to the circuit board, the lens mounting member is formed with a light receiving channel, and the receiving lens is disposed in the light receiving channel.
Optionally, the lens mount comprises a first bracket, and a second bracket;
the first bracket is fixedly connected with the circuit board, a first light receiving channel is formed in the first bracket, and the detection device is arranged in the first light receiving channel;
the second support is detachably connected with the first support, a second light receiving channel is formed in the second support, and the receiving lens is arranged in the second light receiving channel.
Optionally, the first support is provided with a first connecting portion, the second support is provided with a second connecting portion detachably matched with the first connecting portion, and the first connecting portion is in threaded connection with the second connecting portion.
Optionally, the first bracket is provided with a first notch, the second bracket is provided with a second notch matched with the first notch, and an insert passes through the first notch and the second notch so that the first bracket and the second bracket are relatively fixed.
Optionally, the light emitting assembly comprises:
the light source is electrically connected with the circuit board and used for emitting laser along a preset optical axis;
the mounting bracket is arranged corresponding to the light source and is provided with a light emitting channel;
and the collimating lens is arranged in the light emission channel.
Optionally, the mounting bracket includes a third bracket and a fourth bracket;
the third bracket is fixedly connected with the circuit board, and a first light emitting channel corresponding to the light source is formed in the third bracket;
the fourth support can be dismantled with the third support and be connected, and first support is formed with the second and launches the passageway, and collimating lens sets up in the second light receiving channel.
Optionally, the mounting bracket further includes a positioning assembly, and the positioning assembly is connected to the third bracket and is used for positioning the fourth bracket at a preset position of the third bracket.
Optionally, the third bracket and the fourth bracket include mutually adaptive thread structures to adjust a relative distance between the third bracket and the fourth bracket in a direction parallel to the preset optical axis.
Optionally, the lidar detection device further includes a light source control device, and the light source control device is electrically connected to the light emitting assembly through the circuit board to control the light emitting assembly to emit laser.
The embodiment of the application provides a laser radar detection equipment, includes: a circuit board, a light emitting component, a light receiving component and a light receiving component, wherein the light emitting component is fixedly connected with the circuit board, the light receiving component is fixedly connected with the circuit board and comprises a receiving lens and a detecting device electrically connected with the circuit board, the detecting device is provided with at least one detecting plane corresponding to the receiving lens, reflected light corresponding to the laser emitted by the light emitting component forms an image on the detecting plane through the receiving lens, the optical axis of the laser emitted by the light emitting component, the detection plane of the detection device and the main plane of the lens are intersected at one point, then no matter the distance between the object to be detected and the laser radar detection equipment is far and near, the emitted light can form a clear real image on the detection plane through the imaging lens, and therefore clear and stable light spot imaging effects can be obtained through the laser radar detection equipment.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a laser radar detection apparatus 100 according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a light receiving module 120 according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a light emitting assembly 130 according to an embodiment of the present disclosure.
Reference numerals: 100. a laser radar detection device; 110. a circuit board; 120. a light receiving member; 121. A receiving lens; 122. a detection device; 1221. detecting a plane; 123. a lens mount; 1231. a first bracket; 1232. a second bracket; 1233. a first connection portion; 1234. a second connecting portion; 130. a light emitting assembly; 131. a light source; 132. mounting a bracket; 1321. a third support; 1322. a fourth bracket; 1323. An internal thread; 1324. an external thread; 133. a collimating lens; 140. a light source control device.
The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The block diagrams shown in the figures are only examples and do not necessarily include all structures and connections between structures. In the description of the present application, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
It is to be understood that the terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should also be understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a lidar detection apparatus 100 according to an embodiment of the present disclosure.
As shown in fig. 1, lidar detection apparatus 100 includes a circuit board 110, a light receiving assembly 120, and a light emitting assembly 130. The light emitting assembly 130 is used for emitting laser light along a predetermined optical axis direction, and the light emitting assembly 130 is fixedly connected to the circuit board 110. The light receiving assembly 120 is fixedly connected with the circuit board 110, the light receiving assembly 120 includes a receiving lens 121 and a detecting device 122 electrically connected with the circuit board 110, the detecting device 122 has at least one detecting plane 1221, the detecting plane 1221 corresponds to the receiving lens 121, the light emitting assembly 130 emits laser to the object to be detected, the reflected light formed by the laser corresponding to the object to be detected is emitted into the light receiving assembly 120 through the receiving lens 121 and is imaged on the detecting plane 1221 corresponding to the receiving lens 121, and the optical axis L of the laser emitted by the light emitting assembly 130, the extension plane M of the detecting plane 1221 of the detecting device 122, and the main plane N of the receiving lens 121 intersect at a point O.
It should be understood that, when the optical axis L of the laser emitted from the light emitting component 130, the extension plane M of the detection plane 1221 of the detecting device 122, and the main plane N of the receiving lens 121 intersect at a point O, no matter how far the object to be detected is from the laser radar detection apparatus 100, the object-image relationship always satisfies the schemer's law, and the emitted light can form a clear real image on the detection plane 1221 through the receiving lens 121, so that a clear and stable light spot imaging effect can be obtained by the laser radar detection apparatus 100.
It should also be understood that the receiving lens 121 in the light receiving assembly 120 may be a single lens, or may be a lens group composed of a plurality of lenses, and when the receiving lens 121 is a lens group composed of a plurality of lenses, the main plane of the lens group is taken as the main plane of the receiving lens 121.
Referring to fig. 2, in some embodiments, the light receiving assembly 120 further includes a lens mounting member 123 fixedly connected to the circuit board 110, the lens mounting member 123 forms a light receiving channel, the receiving lens 121 is disposed in the light receiving channel, and the receiving lens 121 and the light receiving channel form a predetermined angle, such that an optical axis L of the laser emitted by the light emitting assembly 130, an extension plane M of the detection plane 1221 of the detection device 122, and a main plane N of the receiving lens 121 intersect at a point O.
Specifically, the lens mounting member 123 encloses to form a light receiving channel, the receiving lens 121 is disposed in the light receiving channel, and the lens mounting member 123 forms a first opening opposite to the circuit board 110 and a second opening opposite to the object to be measured at two ends of the light receiving channel. The detecting device 122 electrically connected to the circuit board 110 is accommodated in the first opening, the first opening is fixedly connected to the circuit board 110, and the receiving lens 121 is accommodated in the second opening. The light emitting assembly 130 emits laser to the object to be detected, the corresponding reflected light enters the light receiving channel through the receiving lens 121, a clear real image is formed on the detection plane 1221 of the detection device 122 connected with the circuit board 110 through the light receiving channel, the interference of the external light source 131 in the light receiving process is avoided by the light receiving channel formed in a surrounding manner, and the stability of the light receiving process is improved.
In some embodiments, the lens mounting member 123 includes a first support 1231 and a second support 1232, wherein the first support 1231 is fixedly connected to the circuit board, the first support 1231 is formed with a first light receiving channel, the detecting device 122 is disposed in the first light receiving channel, the second support 1232 is detachably connected to the first support 1231, the second support 1232 is formed with a second light receiving channel, and the receiving lens 121 is disposed in the second light receiving channel.
Specifically, the first support 1231 corresponds to the first opening of the light receiving channel, and a first light receiving channel is formed, and the first support 1231 is fixedly connected to the circuit board. The second support 1232 is formed with a second light receiving channel corresponding to the second opening of the light receiving channel, and the light receiving channel includes a first light receiving channel and a second light receiving channel. The receiving lens 121 is disposed in the second light receiving channel formed by the second frame 1232, and the first frame 1231 is detachably connected to the second frame 1232, so that the receiving lens 121 can be replaced and detached.
In some embodiments, one end of the first frame 1231 near the second frame 1232 is provided with a first connection part 1233, and one end of the second frame 1232 near the first frame 1231 is provided with a second connection part 1234 detachably engaged with the first connection part 1233, wherein the first connection part 1233 is in threaded connection with the second connection part 1234.
As shown in fig. 2, for example, the outer wall of the first connecting portion 1233 is formed with a thread, the inner wall of the second connecting portion 1234 is formed with a thread adapted to the first connecting portion 1233, and through the threaded engagement of the first connecting portion 1233 and the second connecting portion 1234, the detachable connection between the first support 1231 and the fourth support 1322 can be realized, so as to facilitate the detachment and replacement of the incident lens 131.
In other embodiments, the first bracket 1231 is provided with a first notch, the second bracket 1232 is provided with a second notch, and the plug-in adapted to the first notch and the second notch passes through the first notch and the second notch, so that the first bracket 1231 and the second bracket 1232 can be relatively fixed, and the plug-in can be pulled out to release the limit fixation between the first notch and the second notch, thereby detaching the first bracket 1231 and the second bracket 1232.
By any one or a combination of the above two embodiments, the detachable connection between the first support 1231 and the second support 1232 can be realized, which facilitates the replacement of the receiving lens 121.
Referring to fig. 3, in some embodiments, the light emitting assembly 130 includes a light source 131, a mounting bracket 132, and a collimating lens 133, wherein the light source 131 is electrically connected to the circuit board 110 and is configured to emit laser light along a predetermined optical axis, the mounting bracket 132 is disposed corresponding to the light source 131, a light emitting channel is formed in the mounting bracket 132, and the collimating lens 133 is disposed in the light emitting channel. Specifically, the circuit board 110 supplies power to the light source 131, so that the laser emitted by the light source 131 passes through the light emission channel, and the collimating lens 133 collimates the light path of the laser, so that the laser emits the laser to the object to be measured along the preset optical axis.
It should be understood that the light source 131 may be a laser emitting device such as a solid laser, a gas laser, a liquid laser, or a semiconductor laser, and the collimating lens 133 may be a single lens or a lens group composed of a plurality of lenses.
In some embodiments, the mounting bracket 132 includes a third bracket 1321 and a fourth bracket 1322, wherein the third bracket 1321 is fixedly connected to the circuit board, the third bracket 1321 is formed with a first light emitting channel, and the fourth bracket 1322 is formed with a second light emitting channel. The light emitting channels include a first emitting channel and a second emitting channel, the collimating lens 133 is disposed in the second light receiving channel, the light source 131 is disposed close to the first light emitting channel, and the fourth support 1322 is detachably connected to the third support 1321, so that the collimating lens 133 can be replaced and detached.
In some embodiments, the third support 1321 and the fourth support 1322 include mutually adaptive threaded structures, specifically, an outer wall of the third support 1321 close to the fourth support 1322 is formed with an external thread 1324, an inner wall of the fourth support 1322 close to the fourth support 1322 is formed with an internal thread 1323 matched with the external thread 1324, and by matching the external thread 1324 with the internal thread 1323, a relative distance between the third support 1321 and the fourth support 1322 in a direction parallel to the preset optical axis can be adjusted, and a detachable connection between the third support 1321 and the fourth support 1322 can be realized, so that the collimator lens 133 can be detached and replaced.
In other embodiments, the mounting bracket 132 further includes a positioning component, the positioning component is connected to the third bracket 1321, and the fourth bracket 1322 is provided with a positioning hole corresponding to the positioning component, and the positioning component can be in limit fit with the positioning hole. When the positioning assembly is inserted into the positioning hole, the fourth support 1322 can be positioned at a predetermined position of the third support 1321, so that the fourth support 1322 and the third support 1321 can be detachably connected, and when the positioning assembly and the positioning hole are not in limit fit, the straight lens 133 can be detached and replaced.
Referring to fig. 1, the lidar detection apparatus 100 further includes a light source control device 140, and the light source control device 140 is electrically connected to the light emitting assembly 130 through the circuit board 110 to control the light emitting assembly 130 to emit laser light.
The embodiment of the light source 131 in the light emitting module 130 as a solid laser is explained, the light source 131 includes a working substance, a pump excitation source and a resonant cavity, the light source 131 control device is electrically connected to the light emitting module 130 through the circuit board 110 and controls the pump excitation source to make the working substance oscillate back and forth in the resonant cavity to form a laser and emit the laser.
In summary, the light source 131 of the light emitting assembly 130 emits laser light under the control of the light source control device 140, wherein the light path of the laser light is parallel to the predetermined optical axis. The laser beam passes through the light emission channel, is collimated by the collimating lens 133, and is emitted to the object to be measured. The object to be measured reflects the laser, i.e. generates the emitting light corresponding to the laser, and the emitting light enters the light receiving channel through the receiving lens 121 and forms a real image on the detection plane 1221 corresponding to the receiving lens 121. Because the optical axis L of the laser emitted by the light emitting component 130, the extension plane M of the detection plane 1221 of the detection device 122, and the main plane N of the receiving lens 121 intersect at one point O, the object-image relationship always satisfies the schemer's law regardless of the distance between the object to be detected and the lidar detection device 100, and the emitted light can form a clear real image on the detection plane 1221 through the receiving lens 121, so that a clear and stable light spot imaging effect can be obtained through the lidar detection device 100. Meanwhile, the detection device 1221 acquires information of the object to be measured, such as distance, orientation, speed, and even shape, based on the reflected light imaging.
It should be understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items. It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments. While the invention has been described with reference to specific embodiments, the scope of the invention is not limited thereto, and various equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A lidar detection apparatus characterized by comprising:
a circuit board;
the light emitting assembly is fixedly connected with the circuit board and used for emitting laser along a preset optical axis;
the light receiving assembly is fixedly connected with the circuit board and comprises a receiving lens and a detecting device electrically connected with the circuit board, the detecting device is provided with at least one detecting plane corresponding to the receiving lens, and the reflected light corresponding to the laser emitted by the light emitting assembly forms an image on the detecting plane through the receiving lens;
the preset optical axis of the laser emitted by the light emitting component, the detection plane of the detection device and the main plane of the lens are intersected at one point.
2. The lidar detection apparatus of claim 1, wherein the light receiving assembly further comprises a lens mount fixedly coupled to the circuit board, the lens mount defining a light receiving channel, the receiving lens being disposed within the light receiving channel.
3. The lidar detection apparatus of claim 2, wherein the lens mount comprises a first bracket, and a second bracket;
the first bracket is fixedly connected with the circuit board, a first light receiving channel is formed in the first bracket, and the detection device is arranged in the first light receiving channel;
the second support with first support can dismantle the connection, the second support is formed with second light receiving channel, receive lens set up in the second light receiving channel.
4. The lidar detection apparatus of claim 3, wherein the first bracket is provided with a first connection portion, and the second bracket is provided with a second connection portion detachably engaged with the first connection portion, wherein the first connection portion is threadedly connected with the second connection portion.
5. The lidar detection apparatus of claim 3, wherein the first bracket is provided with a first notch, the second bracket is provided with a second notch adapted to the first notch, and an insert is inserted through the first notch and the second notch to fix the first bracket and the second bracket relatively.
6. The lidar detection apparatus of claim 1, wherein the light emitting assembly comprises:
the light source is electrically connected with the circuit board and used for emitting laser along a preset optical axis;
a mounting bracket disposed corresponding to the light source and formed with a light emitting channel;
a collimating lens disposed within the light emission channel.
7. The lidar detection apparatus of claim 6, wherein the mounting bracket comprises a third bracket, and a fourth bracket;
the third bracket is fixedly connected with the circuit board, and a first light emitting channel corresponding to the light source is formed in the third bracket;
the fourth support with the third support is dismantled and is connected, the fourth support is formed with the second and launches the passageway, collimating lens set up in the second light receiving channel.
8. The lidar detection apparatus of claim 7, wherein the mounting bracket further comprises a positioning assembly coupled to the third bracket for positioning the fourth bracket at a predetermined position on the third bracket.
9. The lidar detection apparatus of claim 7, wherein the third support and the fourth support comprise mutually adapted thread structures for adjusting a relative distance between the third support and the fourth support in a direction parallel to the predetermined optical axis.
10. The lidar detection apparatus of any of claims 1 to 9, further comprising a light source control device electrically connected to the light emitting assembly via the circuit board to control the light emitting assembly to emit laser light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122099432.0U CN215867103U (en) | 2021-09-01 | 2021-09-01 | Laser radar detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122099432.0U CN215867103U (en) | 2021-09-01 | 2021-09-01 | Laser radar detection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215867103U true CN215867103U (en) | 2022-02-18 |
Family
ID=80244859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122099432.0U Active CN215867103U (en) | 2021-09-01 | 2021-09-01 | Laser radar detection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215867103U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115096194A (en) * | 2022-07-27 | 2022-09-23 | 深圳市深视智能科技有限公司 | Displacement measuring probe, measuring device and displacement measuring method |
-
2021
- 2021-09-01 CN CN202122099432.0U patent/CN215867103U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115096194A (en) * | 2022-07-27 | 2022-09-23 | 深圳市深视智能科技有限公司 | Displacement measuring probe, measuring device and displacement measuring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180095174A1 (en) | Three-dimensional coordinate measuring device | |
| US7729574B2 (en) | Optical beam flattening using multi-mode fiber | |
| EP2728378A1 (en) | Optical sensor | |
| JP2020112811A (en) | Method for manufacturing multichannel light-emitting module and multichannel light-emitting module | |
| CN215867103U (en) | Laser radar detection equipment | |
| CN111989591A (en) | Laser radar and adjusting method thereof | |
| CN107111080B (en) | Coupling efficiency detection components and its assemble method | |
| EP2960673B1 (en) | Electronic distance meter | |
| WO2020094129A1 (en) | Laser radar system and laser radar | |
| WO2014176479A8 (en) | Surface roughness measurement device | |
| CN109031247A (en) | A kind of collimation camera lens and laser radar launcher | |
| JP2016109517A (en) | Laser radar device | |
| EP1703601A1 (en) | Fiber laser oscillator | |
| WO2011043682A3 (en) | Method and device for coupling laser light derived from at least two laser sources into one optical fiber | |
| EP2884302B1 (en) | Photoelectric sensor | |
| KR100763974B1 (en) | Method and apparatus for aligning optical axis for wavefront sensor for mid-infrared band | |
| US20190101734A1 (en) | Luminous flux collector for directing light into a light-diffusing fiber | |
| JP4907564B2 (en) | Ranging binoculars | |
| CN112986954A (en) | Laser radar transmitting unit, laser radar receiving unit and laser radar | |
| JP2015158388A (en) | photoelectric sensor | |
| CN112585490A (en) | Laser emission module, laser emission module assembling and adjusting method, laser radar and intelligent sensing equipment | |
| US7695202B1 (en) | Visual laser diode to fiber coupling system | |
| JP2007298372A (en) | Light-wave distance meter | |
| US10274745B2 (en) | System for uniformly illuminating target to reduce speckling | |
| KR102072623B1 (en) | Optical beam forming unit, distance measuring device and laser illuminator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |