Laser radar receiving light adjusting device
By adjusting the base, threaded connection, and corrugated spring, the problem of mismatch between the laser radar detector and the focal point of the condenser lens was solved, achieving precise adjustment of the detector position and maximizing the reception of optical signals.
Patent Information
- Application Number
- CN202423214622.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The mismatch between the lidar detector and the focal point of the condenser lens results in the optical signal not being received to its maximum potential.
It adopts a movable adjustment seat and a structure with threaded limit screws and corrugated springs. By moving the adjustment seat, the relative distance between the light-collecting plate and the condenser lens is changed. Combined with the translation adjustment group and corrugated springs, the thread gap is eliminated, so as to achieve precise adjustment of the detector position.
It achieves precise adjustment of the detector position, ensuring maximum reception of optical signals, and the adjustment is stable and accurate.
Smart Images
Figure CN223664775U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to laser radar field especially is a kind of laser radar receiving light adjusting device. BACKGROUND
[0002] The light receiving adjustment structure of laser radar equipment is the key part to ensure that the system can accurately receive the reflected laser signal. It usually contains a light collecting element and a light receiving detector. Due to the machining and assembly errors of the parts, the detector is not always at the focus position of the light collector. Therefore, it is usually necessary to adjust the position of the detector to maximize the light received. Therefore, there is an urgent need for a light receiving structure that can adjust the position of the detector to meet the matching of the detector and the focus of the light collector. SUMMARY
[0003] The utility model provides a kind of laser radar receiving light adjusting device, solve the problem that laser radar detector and light collector focus position match.
[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a kind of laser radar receiving light adjusting device, including hollow main shell frame, adjustable seat is sheathed in main shell frame and can move along the inner wall of main shell frame, light collector is arranged on the side of adjustable seat, light receiving plate is arranged on the other side of adjustable seat, detector is arranged in the center of light receiving plate, one end of adjustable seat is abutted on light receiving plate, and the relative distance of light receiving plate and light collector is changed by moving adjustable seat.
[0005] In the preferred scheme, a stop shoulder is arranged in the main shell frame, and a first corrugated spring is further arranged, one end of the first corrugated spring is abutted on the stop shoulder, and the other end of the first corrugated spring is abutted on the end portion of the adjustable seat, a plurality of limiting screws are arranged on the side wall of the main shell frame in the circumferential direction, a plurality of adjusting holes are arranged on the light receiving plate in the circumferential direction, one end of each limiting screw passes through each adjusting hole and presses the light receiving plate on the adjustable seat.
[0006] In the preferred scheme, the adjustable seat is threadedly connected with the inner wall of the main shell frame.
[0007] In the preferred scheme, the inner diameter of the adjusting hole is greater than the outer diameter of the limiting screw, and the first translation adjustment group and the second translation adjustment group are arranged vertically, the first translation adjustment group and the second translation adjustment group each include a first ear seat and a second ear seat arranged opposite at the outer edge of the main shell frame, the first ear seat is provided with a threaded adjusting screw, one end of the adjusting screw is abutted on the side wall of one end of the light receiving plate, the second ear seat is provided with a second corrugated spring, and the second corrugated spring is abutted on the side wall of the other end of the light receiving plate.
[0008] In the preferred scheme, a hollow slot is arranged on the light receiving plate, and a back cover plate is arranged on the side of the light receiving plate away from the light collector.
[0009] The utility model discloses an advantageous effect is: the distance of the light receiving plate position with the detector can be adjusted, the detector is conveniently adjusted to be in the focal plane, adopt two groups of orthogonal translation adjustment mechanism, can adjust the focal point position in the focal plane to be in the detector center, make the light signal maximization be received, adopt the thread gap of corrugated spring elimination main shell frame and adjustment seat, make adjustment more stable and accurate. BRIEF DESCRIPTION OF DRAWINGS
[0010] The utility model will be further explained in connection with the drawings and examples.
[0011] Fig. 1 It is the sectional view of the utility model.
[0012] Fig. 2 It is the bottom schematic view of the utility model.
[0013] In the drawing: main shell frame 101;Adjustment seat 102;Condenser 103;Light receiving plate 104;Detector 105;First corrugated spring 106;First ear seat 107;Adjusting screw 108;Second ear seat 109;Second corrugated spring 110;First translation adjustment group 111;Second translation adjustment group 112;Limiting screw 113;Rear cover plate 114;Stop shoulder 115;Adjusting hole 116;Hollow slot hole 117. DETAILED DESCRIPTION
[0014] Example 1:
[0015] As Figs. 1-2 In the drawing, a kind of laser radar receiving light adjustment device, including hollow main shell frame 101, main shell frame 101 is sleeved with the adjustment seat 102 that can move along main shell frame 101 inner wall, adjustment seat 102 side is equipped with condenser 103, adjustment seat 102 other side is equipped with light receiving plate 104, light receiving plate 104 center is equipped with detector 105, adjustment seat 102 one end is supported on light receiving plate 104, adjustment seat 102 moves to change the relative distance of light receiving plate 104 and condenser 103.
[0016] Light receiving plate 104 is discoid, axis coincides with condenser 103, adjustment seat 102 middle part is hollow, detector 105 is arranged in the center of light receiving plate 104, therefore can receive the light signal of the convergence of condenser 103.
[0017] In the preferred embodiment, the main shell frame 101 is provided with a stop shoulder 115, and a first wave spring 106 is arranged at one end of the stop shoulder 115 and at the other end of the adjusting seat 102. The side wall of the main shell frame 101 is provided with a plurality of limiting screws 113 arranged in a threaded manner in the circumferential direction. The light collecting plate 104 is provided with a plurality of adjusting holes 116 arranged in the circumferential direction. Each limiting screw 113 passes through each adjusting hole 116 and presses the light collecting plate 104 tightly on the adjusting seat 102.
[0018] In the preferred embodiment, the adjusting seat 102 is threadedly connected to the inner wall of the main shell frame 101.
[0019] The adjusting seat 102 is rotated to adjust the distance between the light collecting plate 104 and the condenser lens 103, so that the focal point of the converging light falls on the detector 105.
[0020] When the telephoto plane needs to be adjusted, the rear cover plate 114 is removed, the limiting screws 113 are loosened, and the adjusting seat 102 is rotated through the hollow slot 117 on the light collecting plate 104. The light collecting plate 104 is rotated relative to the light collecting plate 104 and is pressed against the light collecting plate 104. The distance between the light collecting plate 104 and the condenser lens 103 is adjusted. The first wave spring 106 always maintains pressure and eliminates the threaded gap. Then, the limiting screws 113 are tightened to fix the position of the light collecting plate 104. When the close-up plane needs to be adjusted, the adjusting seat 102 is first rotated, and then the limiting screws 113 are tightened.
[0021] In the preferred embodiment, the inner diameter of the adjusting hole 116 is greater than the outer diameter of the limiting screw 113. The first translation adjustment group 111 and the second translation adjustment group 112 are arranged vertically. The first translation adjustment group 111 and the second translation adjustment group 112 each include a first ear seat 107 and a second ear seat 109 arranged opposite to each other at the outer edge of the main shell frame 101. The first ear seat 107 is provided with a threaded adjusting screw 108 arranged at one end of the side wall of the light collecting plate 104. The second ear seat 109 is provided with a second wave spring 110 arranged at the side wall of the other end of the light collecting plate 104.
[0022] The adjusting screw 108 and the second ear seat 109 are respectively located at both ends of the diameter line of the light collecting plate 104. When the limiting screws 113 are loosened, the adjusting screw 108 can be rotated to press the light collecting plate 104 to translate to the other end. The resistance of the second wave spring 110 keeps the light collecting plate 104 and the adjusting screw 108 in contact at all times. The first translation adjustment group 111 and the second translation adjustment group 112 can adjust the positions of two orthogonal directions on the plane in two vertical directions synchronously to adjust the focal point position of the detector 105 on the central axis of the condenser lens 103.
[0023] After the adjustment is completed, the adjusting screw 108 and the second wave spring 110 can be removed.
[0024] In the preferred embodiment, the light collecting plate 104 is provided with a hollow groove 117, and the light collecting plate 104 is provided with a back cover plate 114 away from the condenser lens 103.
[0025] The light collecting plate 104 is provided with a back cover plate 114 on the outside, which can block the hollow groove 117.
[0026] Embodiment 2:
[0027] A light collecting adjustment device, the internal structure mainly includes a main frame, a condenser lens, a wave spring, an adjusting seat, and a detector. The main frame and the adjusting seat are provided with threads at the matching position. The adjusting seat can rotate inside the main frame, and the wave spring can push against the adjusting seat to eliminate the gap of the threaded cooperation, so that the adjustment is simpler and more convenient.
[0028] The external structure of the light collecting adjustment device mainly includes an adjusting screw, a light collecting plate, an adjusting screw, a wave spring, a light collecting plate seat, and a wave spring. The detector is installed on the light collecting plate, the light collecting plate is installed on the light collecting plate seat, the bottom surface of the light collecting plate seat is attached to the end surface of the adjusting seat, two adjusting screws are installed on the light collecting plate seat, and the wave springs are installed on the opposite sides of the two adjusting screws.
[0029] The condenser lens focuses the reflected light to the focal point. By rotating the adjusting seat, the height of the detector can be adjusted to match the height of the condenser lens. By adjusting the screw and the adjusting screw, the movement of the detector in the horizontal direction can be adjusted. Therefore, the detector can be adjusted to the focal point, so that the energy received by the detector reaches the maximum effect. Finally, the light collecting plate seat is fixed on the main frame, and the two adjusting screws and the two wave springs are removed.
[0030] The adjustment method of the present scheme has less dependence on the tooling, and simplifies the tooling structure and the adjustment method.
[0031] The above embodiments are only preferred technical solutions of the present application, and should not be regarded as limiting the present application. The protection scope of the present application should be based on the technical solutions claimed in the claims, including equivalent replacement schemes of the technical features in the claimed technical solutions. That is, equivalent replacement improvements within this scope are also within the protection scope of the present application.
Claims
1. A laser radar receiving light adjustment device, characterized in that: The device includes a hollow main frame (101), and an adjustment seat (102) that can move along the inner wall of the main frame (101) is fitted inside the main frame (101). A condenser lens (103) is provided on one side of the adjustment seat (102), and a light-collecting plate (104) is provided on the other side of the adjustment seat (102). A detector (105) is provided in the center of the light-collecting plate (104). One end of the adjustment seat (102) abuts against the light-collecting plate (104), and the adjustment seat (102) moves to change the relative distance between the light-collecting plate (104) and the condenser lens (103).
2. The laser radar receiving light adjustment device according to claim 1, characterized in that: the main... The housing (101) is provided with a stop shoulder (115) and a first corrugated spring (106). One end of the first corrugated spring (106) abuts against the stop shoulder (115), and the other end of the first corrugated spring (106) abuts against the end of the adjusting seat (102). The side wall of the main housing (101) is provided with multiple threaded limit screws (113) along the circumferential direction. The light-collecting plate (104) is provided with multiple adjusting holes (116) along the circumferential direction. One end of each limit screw (113) passes through each adjusting hole (116) and presses the light-collecting plate (104) onto the adjusting seat (102).
3. The laser radar receiving light adjustment device according to claim 2, characterized in that: The adjusting seat (102) is threadedly connected to the inner wall of the main frame (101).
4. The laser radar receiving light adjustment device according to claim 3, characterized in that: The inner diameter of the adjustment hole (116) is larger than the outer diameter of the limit screw (113). It also includes a first translation adjustment group (111) and a second translation adjustment group (112) arranged vertically. The first translation adjustment group (111) and the second translation adjustment group (112) both include a first ear seat (107) and a second ear seat (109) arranged opposite to each other at the outer edge of the main frame (101). The first ear seat (107) is provided with a threaded adjustment screw (108). One end of the adjustment screw (108) abuts against the side wall of one end of the light-collecting plate (104). The second ear seat (109) is provided with a second corrugated spring (110). The second corrugated spring (110) abuts against the side wall of the other end of the light-collecting plate (104).
5. The laser radar receiving light adjustment device according to claim 3, characterized in that: The light-collecting plate (104) has a hollowed-out slot (117), and a rear cover plate (114) is provided on the side of the light-collecting plate (104) away from the condenser lens (103).