CN214954293U - Optical lens adjusting device of laser radar - Google Patents
Optical lens adjusting device of laser radar Download PDFInfo
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- CN214954293U CN214954293U CN202120379568.4U CN202120379568U CN214954293U CN 214954293 U CN214954293 U CN 214954293U CN 202120379568 U CN202120379568 U CN 202120379568U CN 214954293 U CN214954293 U CN 214954293U
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Abstract
The utility model discloses a laser radar's optical lens piece adjusting device, the device is including receiving assembly, adjusting part and signal reception unit, wherein: the receiving assembly converges the laser detection light signal, and the signal receiving unit is fixed at the center of the bottom of the receiving assembly; the adjusting component is positioned in the receiving component, adjusts the relative positions of the receiving lens and the signal receiving unit in the horizontal direction and the vertical direction in the receiving component until the receiving lens and the signal receiving unit are positioned on the same central axis line, so that the signal receiving unit can receive the laser detection light signal conveniently. The utility model discloses an adjustable lens cone structural style of second grade, the relative position of adjustment lens and receiving component reduces assembly process, and stability is higher, the quality is reliable under complicated operating mode, and easy batch production helps promoting the further wide application of laser radar product in each field.
Description
Technical Field
The utility model belongs to the technical field of laser radar, more specifically relates to a laser radar's optical lens piece adjusting device.
Background
The laser radar is a scanning type sensor adopting a non-contact laser ranging technology, a target is detected by emitting laser beams, space parameters are obtained by reflected beams, and an accurate three-dimensional image can be generated after photoelectric processing. By adopting the technology, high-precision physical space environment information can be accurately acquired, and the method is widely applied to the industries of geographical mapping, environment detection, industrial scanning or unmanned driving and the like. In the working process of the laser radar, some stray light in the system or abnormally appeared light can affect the return signal, and further the ranging precision of the laser radar is affected. Due to the problems of precision of production and processing of parts or environmental factors and the like, certain deviation exists after direct assembly is completed, and certain adjustment is needed to meet design requirements.
The existing laser radar meets the design requirements by adjusting the installation position of the receiving unit. However, in order to adjust the relative position between the receiving unit and each lens, the receiving unit and each lens are fixed by copper needle welding. This kind of structural style adopts welding, pressure equipment, sticky multiple process form to assemble to under the environment of impact or vibration, receiving element has the risk of taking place the displacement, influences laser radar's measurement accuracy.
In view of the above, overcoming the drawbacks of the prior art is an urgent problem in the art.
SUMMERY OF THE UTILITY MODEL
To the above defect or the improvement demand of prior art, the utility model provides a laser radar's optical lens piece adjusting device, its aim at solve because of use under assembly precision or the special environment, influence laser radar measurement accuracy, reduce assembly process, provide an optical lens piece mounting form, adopt adjustable lens cone structural style, the relative position of adjustment lens improves the assembly precision, alleviates the assembly degree of difficulty, alleviates stray light to the influence of complete machine system to under the relatively abominable operating mode, promote the stability of product.
To achieve the above object, according to an aspect of the present invention, there is provided an optical lens adjusting device for a laser radar, the device including a receiving component 1, an adjusting component 2, and a signal receiving unit 3, wherein:
the receiving assembly 1 converges the laser detection light signal, and the signal receiving unit 3 is fixed at the center of the bottom of the receiving assembly 1;
the adjusting component 2 is located inside the receiving component 1, the adjusting component 2 adjusts the relative position of the receiving lens 11 and the signal receiving unit 3 in the receiving component 1 in the horizontal direction and the vertical direction until the receiving lens 11 and the signal receiving unit 3 are on the same central axis line, so that the signal receiving unit 3 receives the laser detection light signal.
As a further improvement and supplement to the above solution, the present invention further comprises the following additional technical features.
Preferably, the receiving assembly 1 further comprises a receiving lens barrel 12, a receiving lens frame 13, a first fixing hole 14, a first fixing piece 15 and a second fixing hole 16, wherein:
the receiving lens 11 and the receiving lens frame 13 are fixed by gluing, and the receiving lens frame 13 is positioned at the inner side of the receiving lens barrel 12;
a first fixing hole 14 is formed in the side wall of the receiving lens barrel 12, and the first fixing piece 15 penetrates through the first fixing hole 14 to fix the adjusting component 2;
the side wall of the receiving lens barrel 12 is provided with a second fixing hole 16, the second fixing hole 16 is used for matching with a lens frame fixing part 23 of the adjusting component 2 to jointly adjust the axial position of the receiving lens frame 13 until the receiving lens 11 and the signal receiving unit 3 can be located on the same central axis, so that light can be conveniently converged to the signal receiving unit 3.
Preferably, the receiving lens 11 is a spherical mirror or an aspherical mirror.
Preferably, the adjusting assembly 2 includes an adjusting barrel 21, a frame fixing hole 22, and a frame fixing member 23, wherein:
the side wall of the adjusting lens barrel 21 is provided with lens frame fixing holes 22, and the positions and the number of the lens frame fixing holes 22 correspond to those of the second fixing holes 16;
the frame fixing piece 23 passes through the frame fixing hole 22 and the second fixing hole 16, and adjusts and fixes the axial position of the receiving frame 13.
Preferably, the adjusting assembly 2 is screwed fixedly to the receiving assembly 1, wherein:
adjusting part 2 lateral wall sets up screw thread 24, and adjusting part 2's top bilateral symmetry sets up adjustment tank 25, receiving part 1 medial wall set up with screw thread 24 assorted screw thread, adjusting part 2 lateral wall and receiving part 1 medial wall are clearance fit, rotate adjustment tank 25 drives the screw thread synchronous rotation of receiving part 1 medial surface and adjusting part 2 lateral surface, adjusts receiving part 1 and the distance of signal receiving unit 3 on the vertical direction.
Preferably, it is characterized in that the first fixing member 15 and the frame fixing member 23 are embodied as bolts or pins.
Preferably, the second fixing hole 16 has an oval shape, and the area of the second fixing hole 16 is larger than that of the frame fixing hole 22, so that the frame fixing member 23 can adjust the insertion depth to adjust the distance between the signal receiving unit 3 and the receiving lens 11 in the horizontal direction.
Preferably, the device comprises a transmitting assembly 4, the bottom of the transmitting assembly 4 is nested in the top of the receiving assembly 1, and the bottom inner side surface 45 of the transmitting assembly 4 is in clearance fit with the top outer side surface 17 of the receiving assembly 1, so that the transmitting assembly 4 and the receiving assembly 1 are coaxially fixed.
Preferably, the emission assembly 4 includes an emission barrel holder 41, a lens 42, a mirror barrel 43 and a mirror 44, wherein:
the lens 42 is fixed at the bottom of the emission lens cone bracket 41;
the reflecting mirror barrel 43 is fixed at the center of the bottom surface of the lens 42, and a preset angle is formed between the reflecting mirror 44 and the reflecting mirror barrel 43;
the central axis of the reflector 44 and the central axis of the light inlet 411 on the sidewall of the emission tube holder 41 are located on the same line.
Preferably, the mirror 44 is a flat mirror.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, has following beneficial effect:
the utility model provides a fixed receiving assembly, adopts the two-stage adjustable lens cone structure form, adjusts the relative position of the lens and the receiving assembly, reduces the assembly process, adopts common tools and gluing to complete the product assembly; each part is mainly adjusted and fixed through a threaded connection mode, and the laser radar device is higher in stability and reliable in quality when used under complex working conditions, is easy to produce in batches, and is beneficial to promoting further wide application of laser radar products in various fields.
Drawings
FIG. 1 is a schematic cross-sectional view of an overall structure of a first embodiment of the present invention;
fig. 2 is a schematic view of a receiving lens barrel according to a first embodiment of the present invention;
fig. 3 is a schematic view of an adjusting lens barrel according to a first embodiment of the present invention;
FIG. 4 is a cross-sectional view of a lens barrel holder according to a first embodiment of the present invention;
fig. 5 is a schematic view of the overall structure of the first embodiment.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein: 1-a receiving component; 11-receiving a lens; 12-a receiving barrel; 13-receiver frame; 14-a first fixation hole; 15-a first fixing member; 16-a second fixing hole; 17-the top outer side of the receiving assembly; 2-a regulating component; 21-adjusting the lens barrel; 22-frame fixing hole; 23-frame mount; 24-thread groove; 25-an adjustment tank; 3-a signal receiving unit; 4-a transmitting assembly; 41-emission column holder; 411-light entrance hole; 42-a transmitting lens; 43-a mirror barrel; 44-a mirror; 45-bottom inside surface of the emitting assembly.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "up", "down", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present invention but do not require that the present invention must be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The first embodiment is as follows:
in order to improve the accuracy and stability of the signal receiving unit 3 when receiving the detection light signal, as shown in fig. 1, the present embodiment provides an optical lens adjusting apparatus for a laser radar, the apparatus includes a receiving assembly 1, an adjusting assembly 2 and a signal receiving unit 3, wherein:
the receiving assembly 1 converges the laser detection light signal, and the signal receiving unit 3 is fixed at the center of the bottom of the receiving assembly 1;
the adjusting component 2 is located inside the receiving component 1, the adjusting component 2 adjusts the relative position of the receiving lens 11 and the signal receiving unit 3 in the receiving component 1 in the horizontal direction and the vertical direction until the receiving lens 11 and the signal receiving unit 3 are on the same central axis line, so that the signal receiving unit 3 receives the laser detection light signal.
In the first embodiment, a convex receiving lens 11 is disposed in the receiving assembly 1, the optical signal above the receiving lens 11 is converged below the receiving lens 11, the adjusting assembly 2 is located above the inside of the receiving assembly 1, the signal receiving unit 3 is fixed at the center of the bottom of the receiving assembly 1, the adjusting assembly 2 firstly adjusts the horizontal position of the receiving lens 11, and adjusts the horizontal position until the receiving lens 11 and the signal receiving unit 3 are located on the same central axis line, and secondly adjusts the vertical distance between the receiving lens 11 and the signal receiving unit 3 according to the specific situation of the object to be detected, so that the receiving lens 11 can make the effect of converging the optical signal best, the optical signal received by the signal receiving unit 3 is strongest, and thus the precision and stability of the signal receiving unit 3 when receiving the detected optical signal are improved.
In order to improve the stability of the receiving assembly 1, in combination with the embodiments of the present invention, there is also a preferred implementation, specifically, as shown in fig. 1 and fig. 2, the receiving assembly 1 further includes a receiving lens barrel 12, a receiving lens frame 13, a first fixing hole 14, a first fixing member 15, and a second fixing hole 16, wherein:
the receiving lens 11 and the receiving lens frame 13 are fixed by gluing, and the receiving lens frame 13 is positioned at the inner side of the receiving lens barrel 12;
a first fixing hole 14 is formed in the side wall of the receiving lens barrel 12, and the first fixing piece 15 penetrates through the first fixing hole 14 to fix the adjusting component 2;
the side wall of the receiving lens barrel 12 is provided with a second fixing hole 16, the second fixing hole 16 is used for matching with a lens frame fixing part 23 of the adjusting component 2 to jointly adjust the axial position of the receiving lens frame 13 until the receiving lens 11 and the signal receiving unit 3 can be located on the same central axis, so that light can be conveniently converged to the signal receiving unit 3.
In the first embodiment, since the adjusting component 2 is located inside the receiving component 1, when fixing the adjusting component 2, it is necessary to perform the adjustment after the adjustment is finished, and the state between the components after the adjustment is finished cannot be changed, so that a first fixing hole 14 is provided on the side wall of the receiving lens barrel 12, and the first fixing member 15 passes through the first fixing hole 14 to fix the position of the adjusting component 2 by pressing in the direction of the side wall.
In the first embodiment, the receiving lens frame 13 is located inside the receiving lens barrel 12, the adjusting lens barrel 21 of the adjusting assembly 2 is arranged between the receiving lens barrel 13 and the receiving lens barrel 12, there is a gap between the adjusting lens barrel 21 and the receiving lens frame 13, in high-speed operation, the receiving data accuracy of the signal receiving unit 3 may be affected by the shaking, so at least three second fixing holes 16 should be uniformly distributed on the outer side wall of the receiving lens barrel 12, in the first embodiment, the most easily implemented scheme is selected, the three second fixing holes 16 are arranged, the mutual distance is 120 degrees, by inserting the frame fixing piece 23 of the adjusting component 2 into the second fixing hole 16 to press against the receiving frame 13, the screwing depth of the frame fixing piece 23 is adjusted, the axial deviation of the receiving lens 11 and the signal receiving unit 3 is eliminated, so that the receiving optics 11 can be located on the same central axis as the signal receiving unit 3.
In order to make the converging effect accurate and stable, there is also a preferred implementation in combination with the embodiments of the present invention, specifically, as shown in fig. 1, the receiving lens 11 is a spherical mirror or an aspherical mirror.
In the first embodiment, the receiving lens 11 is a spherical mirror, so as to converge the optical signal and transmit the optical signal to the signal receiving unit 3 coaxial with the receiving lens 11. The receiving lens 11 may also be an aspherical mirror so as to meet the requirements of various scenes.
In order to adjust the axial position of the receiving lens 11, there is also a preferred implementation in combination with the embodiment of the present invention, specifically, as shown in fig. 1 and fig. 3, the adjusting assembly 2 includes an adjusting lens barrel 21, a lens frame fixing hole 22, and a lens frame fixing member 23, wherein:
the side wall of the adjusting lens barrel 21 is provided with lens frame fixing holes 22, and the positions and the number of the lens frame fixing holes 22 correspond to those of the second fixing holes 16;
the frame fixing piece 23 passes through the frame fixing hole 22 and the second fixing hole 16, and adjusts and fixes the axial position of the receiving frame 13.
In the first embodiment, the receiving lens 11 and the receiving frame 13 are fixed by gluing, so as to prevent the lens from cracking due to temperature variation and different thermal expansion coefficients of the materials, a gap is left between the outer side surface of the receiving lens 11 and the inner side surface of the receiving frame 13, and the receiving data precision of the signal receiving unit 3 is affected by shaking which may occur during high-speed operation, so that the central axis of the receiving lens 11 and the central axis of the receiving frame 13 cannot be coaxial. An adjusting lens barrel 21 is added between the receiving lens barrel 13 and the receiving lens barrel 12, and the receiving lens barrel 12 and the adjusting lens barrel 21 are mutually matched to ensure that the receiving lens barrel and the adjusting lens barrel are positioned on the same central axis. Three second fixing holes 16 are uniformly distributed on the outer side wall of the receiving lens barrel 12, the distance between the second fixing holes 16 is 120 degrees, the positions and the number of the lens frame fixing holes 22 on the side wall of the adjusting lens barrel 21 correspond to those of the second fixing holes 16, the lens frame fixing piece 23 is inserted into the second fixing holes 16 to be extruded and abut against the receiving lens frame 13, the screwing-in depth of the lens frame fixing piece 23 is adjusted, and small adjustment is carried out, so that the receiving lens 11 and the signal receiving unit 3 can be located on the same central axis.
In order to adjust the position of the receiving lens 11 in the vertical direction, there is also a preferred implementation in combination with the embodiments of the present invention, specifically, as shown in fig. 1 and fig. 3, the adjusting assembly 2 is fixedly connected to the receiving assembly 1 by a screw thread, wherein:
adjusting part 2 lateral wall sets up screw thread 24, and adjusting part 2's top bilateral symmetry sets up adjustment tank 25, receiving part 1 medial wall set up with screw thread 24 assorted screw thread, adjusting part 2 lateral wall and receiving part 1 medial wall are clearance fit, rotate adjustment tank 25 drives the screw thread synchronous rotation of receiving part 1 medial surface and adjusting part 2 lateral surface, adjusts receiving part 1 and the distance of signal receiving unit 3 on the vertical direction.
In this embodiment one, it is more efficient to select for use the perpendicular distance between screw thread regulation receiving component 1 and the regulating component 2, and is more simple and convenient in the actual use. Laser radar needs to adapt to the detection light signal of each object to be detected, and after receiving lens 11 and signal receiving unit 3 are located same central axis, the vertical distance between receiving component 1 and adjusting component 2 can also be adjusted, namely the distance between receiving lens 11 and signal receiving unit 3 in the vertical direction, so that signal receiving unit 3 can select the most appropriate angle to receive the detection light of the object to be detected.
In order to improve the stability of the adjusting assembly 2, in combination with the embodiment of the present invention, there is also a preferred implementation, specifically, as shown in fig. 1, the first fixing member 15 and the frame fixing member 23 are specifically bolts or pins.
In the first embodiment, after the frame fixing member 23 is selected to fix the receiving frame 13 with three bolts, the first fixing member 15 is selected to fix the position of the adjusting barrel 21 of the adjusting assembly 2 with bolts.
In order to facilitate the adjustment of the position of the receiving lens frame 13, in combination with the embodiment of the present invention, there is also a preferred implementation, specifically, as shown in fig. 2 and fig. 3, the shape of the second fixing hole 16 is an ellipse, and the area of the second fixing hole 16 is larger than the area of the lens frame fixing hole 22, so that the lens frame fixing member 23 adjusts the insertion depth, thereby adjusting the distance between the signal receiving unit 3 and the receiving lens 11 in the horizontal direction.
In the first embodiment, the second fixing hole 16 is an elliptical hole, the frame fixing hole 22 is a circular hole, and the frame fixing member 23 is inserted into the second fixing hole 16 and the frame fixing hole 22 to adjust the position of the receiving frame 13 and simultaneously drive the adjustment of the position of the receiving lens 11. If the area of the second fixing hole 16 is the same as that of the frame fixing hole 22, the insertion of the frame fixing piece 23 into the second fixing hole 16 and the frame fixing hole 22 is inconvenient to observe the insertion depth and makes the insertion process difficult.
In order to make the transmitted light and the received light of the lidar be in the same direction, in combination with the embodiment of the present invention, there is also a preferred implementation, specifically, as shown in fig. 1, fig. 2, fig. 4 and fig. 5, the apparatus includes the transmitting assembly 4, the bottom of the transmitting assembly 4 is nested on the top of the receiving assembly 1, the bottom inner side 45 of the transmitting assembly 4 is in clearance fit with the top outer side 17 of the receiving assembly 1, so that the transmitting assembly 4 and the receiving assembly 1 are coaxially fixed.
In the first embodiment, the transmitting assembly 4 is coaxially fixed to the receiving assembly 1, the bottom inner side 45 of the transmitting assembly 4 is in clearance fit with the top outer side 17 of the receiving assembly 1, the outer side of the receiving lens barrel 12 is in fit with the inner side of the transmitting lens barrel support 41, and the receiving lens barrel and the transmitting lens barrel can be fixedly connected by bolts, pins or buckles after being nested.
In order to enable the transmitting assembly 4 to transmit the transmitting beam to the object to be tested, in combination with the embodiment of the present invention, there is also a preferred implementation, specifically, as shown in fig. 1, the transmitting assembly 4 includes a transmitting lens barrel support 41, a lens 42, a reflecting mirror barrel 43 and a reflecting mirror 44, wherein:
the lens 42 is fixed at the bottom of the emission lens cone bracket 41;
the reflecting mirror barrel 43 is fixed at the center of the bottom surface of the lens 42, and a preset angle is formed between the reflecting mirror 44 and the reflecting mirror barrel 43;
the central axis of the reflector 44 and the central axis of the light inlet 411 on the sidewall of the emission tube holder 41 are located on the same line.
In this embodiment, the light source is a semiconductor laser, a fiber laser, or a solid laser. Laser emitted by the laser source enters the inside of the transmitting lens cone bracket 41 through the light inlet 411 on the side wall of the transmitting lens cone bracket 41, the laser is reflected by the reflector 44 and then emitted to the outside of the transmitting lens cone bracket 41, and after encountering a detected target, the optical signal is reflected back to the inside of the transmitting lens cone bracket 41, and then is converged to the signal receiving unit 3 through the lens 42 and the receiving lens 11, and the relevant spatial information of the target object is obtained through photoelectric conversion.
In the first embodiment, the lens 42 and the lens barrel holder 41 are fixed by gluing, the reflecting mirror barrel 43 and the reflecting mirror 44 are fixed by gluing, and the inclination angle between the reflecting mirror 44 and the reflecting mirror barrel 43 is generally 30 to 60 degrees.
In order to enable the transmitting assembly 4 to transmit the transmitting beam to the object to be measured, there is also a preferred implementation scheme in combination with the embodiment of the present invention, specifically, as shown in fig. 1, the reflecting mirror 44 is a plane mirror.
In the first embodiment, the lens 42 is a flat mirror with light transmittance, and the receiving lens 11 is a spherical mirror. After the target is detected, the optical signal is reflected back to the transmitting lens barrel bracket 41 and then transmitted to the receiving lens 11 through the lens 42, and after the optical signal is converged by the convex receiving lens 11, the optical signal is transmitted to the signal receiving unit 3. In order to make the effect of the emitted light beam not affected by the mirror surface, there is also a preferred implementation in combination with the embodiment of the present invention, and in particular, as shown in fig. 1, the reflecting mirror 44 is a plane mirror.
In the first embodiment, the laser is reflected by the reflector 44 and then emitted to the outside of the transmitting lens barrel holder 41, when encountering a detection target, the optical signal is reflected back to the transmitting lens barrel holder 41, and the optical signal is converged to the signal receiving unit 3 through the lens 42 and the receiving lens 11, and then the relevant spatial information of the target object is obtained through photoelectric conversion.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An optical lens adjustment device for a lidar, characterized in that the device comprises a receiving assembly (1), an adjustment assembly (2) and a signal receiving unit (3), wherein:
the receiving assembly (1) converges the laser detection light signal, and the signal receiving unit (3) is fixed at the center of the bottom of the receiving assembly (1);
the adjusting component (2) is located inside the receiving component (1), the adjusting component (2) adjusts the relative position of the receiving lens (11) and the signal receiving unit (3) in the horizontal direction and the vertical direction in the receiving component (1), and the relative position is on the same central axis line until the receiving lens (11) and the signal receiving unit (3) are located, so that the signal receiving unit (3) can receive the laser detection light signal conveniently.
2. The laser radar optical lens adjusting apparatus according to claim 1, wherein the receiving assembly (1) further comprises a receiving lens barrel (12), a receiving lens frame (13), a first fixing hole (14), a first fixing member (15), and a second fixing hole (16), wherein:
the receiving lens (11) and the receiving lens frame (13) are fixed through gluing, and the receiving lens frame (13) is positioned on the inner side of the receiving lens barrel (12);
a first fixing hole (14) is formed in the side wall of the receiving lens barrel (12), and the first fixing piece (15) penetrates through the first fixing hole (14) to fix the adjusting component (2);
the receiving lens cone (12) is provided with a second fixing hole (16) on the side wall, the second fixing hole (16) is used for being matched with a lens frame fixing piece (23) of the adjusting component (2) to jointly adjust the axial position of the receiving lens frame (13) until the receiving lens (11) can be located on the same central axis with the signal receiving unit (3), so that light can be conveniently converged to the signal receiving unit (3).
3. The laser radar optical lens adjusting device according to claim 2, characterized in that the receiving lens (11) is a spherical or aspherical mirror.
4. The laser radar optical lens adjusting apparatus according to claim 2, wherein the adjusting assembly (2) comprises an adjusting barrel (21), a frame fixing hole (22), and a frame fixing member (23), wherein:
the side wall of the adjusting lens barrel (21) is provided with lens frame fixing holes (22), and the positions and the number of the lens frame fixing holes (22) correspond to those of the second fixing holes (16);
the frame fixing member (23) passes through the frame fixing hole (22) and the second fixing hole (16), and adjusts and fixes the axial position of the receiving frame (13).
5. The laser radar optics adjustment device according to claim 1, characterized in that the adjustment assembly (2) is in a screw-fixed connection with the receiving assembly (1), wherein:
adjusting part (2) outside lateral wall sets up screw thread (24), and the top bilateral symmetry of adjusting part (2) sets up adjustment tank (25), receiving part (1) inside lateral wall set up with screw thread (24) assorted screw thread, adjusting part (2) outside lateral wall and receiving part (1) inside lateral wall are clearance fit, rotate adjustment tank (25) drive the screw thread synchronous rotation of receiving part (1) medial surface and adjusting part (2) lateral surface, adjust receiving part (1) and signal receiving unit (3) distance on the vertical direction.
6. The laser radar optics adjustment device according to claim 4, characterized in that the first mount (15) and the frame mount (23) are embodied as bolts or pins.
7. The optical lens adjusting apparatus for lidar according to claim 4, wherein the second fixing hole (16) has an elliptical shape, and the area of the second fixing hole (16) is larger than the area of the lens frame fixing hole (22), so that the lens frame fixing member (23) adjusts the insertion depth to adjust the distance between the signal receiving unit (3) and the receiving lens (11) in the horizontal direction.
8. The device for adjusting an optical lens of a lidar according to claim 1, wherein the device comprises a transmitting assembly (4), the bottom of the transmitting assembly (4) is nested in the top of the receiving assembly (1), and the bottom inner side (45) of the transmitting assembly (4) is in clearance fit with the top outer side (17) of the receiving assembly (1) so as to facilitate the coaxial fixation of the transmitting assembly (4) and the receiving assembly (1).
9. The laser radar optical lens adjusting apparatus according to claim 8, wherein the transmitting assembly (4) comprises a transmitting barrel holder (41), a lens (42), a mirror barrel (43), and a mirror (44), wherein:
the lens (42) is fixed at the bottom of the emission lens cone bracket (41);
the reflecting mirror barrel (43) is fixed at the center of the bottom surface of the lens (42), and a preset angle is formed between the reflecting mirror (44) and the reflecting mirror barrel (43);
the central axis of the reflector (44) and the central axis of the light inlet hole (411) on the side wall of the emission lens cone bracket (41) are positioned on the same connecting line.
10. Lidar optics adjustment device according to claim 9, wherein said mirror (44) is a flat mirror.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120379568.4U CN214954293U (en) | 2021-02-20 | 2021-02-20 | Optical lens adjusting device of laser radar |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120379568.4U CN214954293U (en) | 2021-02-20 | 2021-02-20 | Optical lens adjusting device of laser radar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115166692A (en) * | 2022-07-08 | 2022-10-11 | 探维科技(北京)有限公司 | Laser radar light path adjusting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115166692A (en) * | 2022-07-08 | 2022-10-11 | 探维科技(北京)有限公司 | Laser radar light path adjusting device |
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