Optical path adjustment device

Abstract

The present application discloses an optical path adjustment device, which relates to the field of optical path adjustment technology. The optical path adjustment device includes a base plate, and a rotation adjustment component arranged on the base plate, wherein the rotation adjustment component is respectively provided with a pitch adjustment component and a translation adjustment component; the rotation adjustment component includes a rotation drive component arranged on the base plate, and a rotating frame rotatably connected to the base plate, wherein the rotation drive component drives the rotating frame to rotate relative to the base plate; the pitch adjustment component includes a pitch drive component arranged on the rotating frame, and a pitch frame rotatably connected to the rotating frame, wherein the pitch frame is provided with an optical element, wherein the pitch drive component drives the pitch frame to rotate relative to the rotating frame; the translation adjustment component includes a translation drive component, and an optical component connected to the translation drive component. This can reduce production costs and improve applicability during use.

Description

Technical Field

[0001] The present application relates to the technical field of optical path adjustment, and in particular to an optical path adjustment device. Background Art

[0002] In lidars and lasers, internal optical components often need to be adjusted to meet operational requirements. During optical path debugging, manual adjustment via screws is common in the market. However, if customizable adjustment distances and angles are required, an electric device is required.

[0003] When adjusting optical components in the optical path, in order to automatically adjust the deflection and pitch angles of the optical components, a motorized angular translation stage is generally purchased directly. This angular translation stage is expensive and only suitable for laboratory debugging, which limits its applicability for optical path adjustment. Summary of the Invention

[0004] The purpose of this application is to provide an optical path adjustment device that can reduce production costs and improve applicability during use.

[0005] The embodiment of the present application is implemented as follows:

[0006] An embodiment of the present application provides an optical path adjustment device, comprising a base plate, and a rotation adjustment component arranged on the base plate, wherein the rotation adjustment component is respectively provided with a pitch adjustment component and a translation adjustment component; the rotation adjustment component comprises a rotation drive component arranged on the base plate, and a rotating frame rotatably connected to the base plate, the rotation drive component drives the rotating frame to rotate relative to the base plate; the pitch adjustment component comprises a pitch drive component arranged on the rotating frame, and a pitch frame rotatably connected to the rotating frame, the pitch frame is provided with an optical element, and the pitch drive component drives the pitch frame to rotate relative to the rotating frame; the translation adjustment component comprises a translation drive component, and an optical component connected to the translation drive component.

[0007] Optionally, the rotation drive assembly includes a first support frame arranged on the base plate, and a first drive motor connected to the first support frame, the output end of the first drive motor is connected to a first screw rod, and the first support frame is also slidably connected to a first nut, the first nut is threadedly connected to the first screw rod, and the first nut is provided with a first spherical top block, and the first spherical top block is used to resist the rotating frame.

[0008] Optionally, a first tensioning spring is connected between the first supporting frame and the rotating frame, and first adjusting screws are respectively provided at both ends of the first tensioning spring, so that the first tensioning spring is respectively connected to the first supporting frame and the rotating frame through the first adjusting screws.

[0009] Optionally, the rotation adjustment assembly further includes a support leg provided on the base plate, a support plate provided on the support leg, and a rotation main shaft rotatably connected to the support plate, and the rotating frame is connected to the rotation main shaft.

[0010] Optionally, the pitch drive assembly includes a second support frame arranged on the rotating frame, and a second drive motor connected to the second support frame, the output end of the second drive motor is connected to a second screw rod, and the second support frame is also slidably connected to a second nut, the second nut is threadedly connected to the second screw rod, and the second nut is provided with a second spherical top block, and the second spherical top block is used to resist the pitch frame.

[0011] Optionally, a second tensioning spring is connected between the pitch frame and the rotating frame, and second adjusting screws are respectively provided at both ends of the second tensioning spring, so that the second tensioning spring is respectively connected to the pitch frame and the rotating frame through the second adjusting screws.

[0012] Optionally, the rotating frame includes a rotating base and a connecting frame arranged on the rotating base; the pitch frame includes a connecting plate and a mounting frame arranged on the connecting plate; the rotating base is rotatably connected to the base plate, the mounting frame is rotatably connected to the connecting frame, and the optical element is located on the mounting frame.

[0013] Optionally, the translation drive assembly includes a third support frame arranged on the connecting plate, and a third drive motor connected to the third support frame, the output end of the third drive motor is connected to a third screw rod, and the third support frame is also slidably connected to a third nut, the third nut is threadedly connected to the third screw rod, and the optical assembly is arranged on the third nut.

[0014] Optionally, the third nut is slidably connected to the third support frame via a slider, and the translation drive assembly further includes a third tensioning spring connected between the connecting plate and the slider.

[0015] Optionally, the optical assembly includes a mounting block connected to the slider, and a plurality of planar lenses arranged on the mounting block.

[0016] The beneficial effects of the embodiments of the present application include:

[0017] The optical path adjustment device provided in the embodiment of the present application is provided with a base plate and a rotation adjustment assembly disposed on the base plate. The rotation adjustment assembly is provided with a pitch adjustment assembly and a translation adjustment assembly, so that the three are combined to achieve the purpose of adjusting optical elements and optical components. When it is necessary to adjust the optical components, it is only necessary to activate the translation drive assembly and / or the rotation drive assembly. When it is necessary to adjust the optical elements, it is only necessary to activate the pitch drive assembly and / or the rotation drive assembly. Using the above form, it is possible to adjust the optical path, and the required adjustment function can be achieved without the use of an electric angle translation stage, which can reduce production costs and improve applicability during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is one of the structural schematic diagrams of the optical path adjustment device provided in an embodiment of the present application;

[0020] Figure 2 A schematic structural diagram of a rotation drive assembly provided in an embodiment of the present application;

[0021] Figure 3 The second structural diagram of the optical path adjustment device provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the structure of the pitch drive assembly provided in an embodiment of the present application being connected to the turret and the pitch frame respectively;

[0023] Figure 5 A schematic structural diagram of a rotating frame provided in an embodiment of the present application;

[0024] Figure 6 A schematic diagram of the structure of the pitch frame provided in an embodiment of the present application;

[0025] Figure 7 A schematic diagram of the structure of the connection between the pitch frame and the translation drive assembly provided in an embodiment of the present application;

[0026] Figure 8 A schematic diagram of the structure of the optical component provided in an embodiment of the present application.

[0027] Icons: 100-optical path adjustment device; 110-base plate; 120-rotation adjustment assembly; 122-rotation drive assembly; 1222-first support frame; 1224-first drive motor; 1226-first screw rod; 1228-first nut; 1229-first spherical top block; 124-rotation frame; 1242-rotation seat; 1244-connecting frame; 125-first tensioning spring; 126-support leg; 127-support plate; 128-rotation spindle; 130-pitch adjustment assembly; 132-pitch drive assembly; 1322-second support frame; 1324-second drive motor Machine; 1326-second screw rod; 1328-second nut; 1329-second spherical top block; 134-pitch frame; 1342-connecting plate; 1344-mounting frame; 136-second tensioning spring; 138-second adjusting screw; 140-optical element; 150-translational adjustment assembly; 152-translational drive assembly; 1522-third support frame; 1524-third drive motor; 1526-third screw rod; 1528-third nut; 1529-slider; 154-optical assembly; 1542-mounting block; 1544-plane lens; 156-third tensioning spring. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without making any creative efforts shall fall within the scope of protection of the present application.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0031] In the description of this application, it should be noted that the terms "inside" and "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0033] Please refer to Figure 1 This embodiment provides an optical path adjustment device 100, including a base plate 110, and a rotation adjustment component 120 arranged on the base plate 110, on which a pitch adjustment component 130 and a translation adjustment component 150 are respectively arranged; the rotation adjustment component 120 includes a rotation drive component 122 arranged on the base plate 110, and a rotating frame 124 rotatably connected to the base plate 110, the rotation drive component 122 drives the rotating frame 124 to rotate relative to the base plate 110; the pitch adjustment component 130 includes a pitch drive component 132 arranged on the rotating frame 124, and a pitch frame 134 rotatably connected to the rotating frame 124, an optical element 140 is arranged on the pitch frame 134, and the pitch drive component 132 drives the pitch frame 134 to rotate relative to the rotating frame 124; the translation adjustment component 150 includes a translation drive component 152, and an optical component 154 connected to the translation drive component 152.

[0034] Specifically, when the rotation drive assembly 122 is actuated, it drives the turret 124 to rotate relative to the base plate 110. At this time, the pitch adjustment assembly 130 and the translation adjustment assembly 150 mounted on the turret 124 rotate synchronously with the turret 124. When the pitch adjustment assembly 130 is actuated, it drives the pitch frame 134 to rotate relative to the turret 124. At this time, the translation adjustment assembly 150 mounted on the pitch frame 134 rotates synchronously with the pitch frame 134. When the translation adjustment assembly 150 is actuated, it drives the optical assembly 154 to move linearly relative to the pitch frame 134.

[0035] Among them, the rotation axis of the rotating frame 124, the rotation axis of the pitch frame 134 and the driving direction of the translation drive assembly 152 are perpendicular to each other, so that the optical unit and the optical assembly 154 set on the pitch frame 134 can move synchronously as needed, or realize relative movement between the two to achieve the purpose of adjusting the optical path.

[0036] The optical path adjustment device 100 provided in the embodiment of the present application comprises a base plate 110, a rotation adjustment assembly 120 disposed on the base plate 110, and a pitch adjustment assembly 130 and a translation adjustment assembly 150 disposed on the rotation adjustment assembly 120. The three components are combined to achieve the purpose of adjusting the optical element 140 and the optical component 154. When the optical component 154 needs to be adjusted, only the translation drive assembly 152 and / or the rotation drive assembly 122 need to be activated. When the optical component 140 needs to be adjusted, only the pitch drive assembly 132 and / or the rotation drive assembly 122 need to be activated. Using the above-described method, optical path adjustment can be achieved without the use of a motorized angular displacement stage, thereby reducing production costs and improving applicability during use.

[0037] like Figure 2 As shown, the rotation drive assembly 122 includes a first support frame 1222 arranged on the base plate 110, and a first drive motor 1224 connected to the first support frame 1222, the output end of the first drive motor 1224 is connected to the first screw rod 1226, and the first support frame 1222 is also slidably connected to the first nut 1228, the first nut 1228 is threadedly connected to the first screw rod 1226, and the first nut 1228 is provided with a first spherical top block 1229, which is used to resist the rotating frame 124.

[0038] Specifically, when the first drive motor 1224 is in operation, it drives the first screw rod 1226 to rotate, thereby causing the first nut 1228 to move relative to the first screw rod 1226. At this time, the first spherical top block 1229 provided on the first nut 1228 moves synchronously with the first nut 1228, thereby achieving a supporting force on the rotating frame 124 through the first spherical top block 1229, thereby causing the rotating frame 124 to rotate under force. It should be noted that the first spherical top block 1229 and the first nut 1228 can be connected by a connecting seat, and the connecting seat is slidably connected relative to the first support frame 1222. In addition, the first screw rod 1226 can directly serve as the output end of the first drive motor 1224 to save the use of a coupling while also ensuring the movement accuracy of the first drive motor 1224. It can be understood that a bearing is provided at the tail end of the first screw rod 1226, which is rotatably connected to the first support frame 1222 through the bearing to prevent the first screw rod 1226 from shaking significantly during the movement of the first drive motor 1224, which is beneficial to increase the movement accuracy of the first drive motor 1224.

[0039] like Figure 3 As shown, a first tensioning spring 125 is connected between the first support frame 1222 and the rotating frame 124, and first adjusting screws are respectively provided at both ends of the first tensioning spring 125, so that the first tensioning spring 125 is connected to the first support frame 1222 and the rotating frame 124 respectively through the first adjusting screws.

[0040] Specifically, by connecting the first tensioning spring 125 between the first support frame 1222 and the rotating frame 124, relative movement between the first support frame 1222 and the rotating frame 124 can be stabilized, preventing vibration and facilitating stability during optical path adjustment. Furthermore, by providing first adjustment screws at each end of the first tensioning spring 125, the tension of the first tensioning spring 125 can be adjusted to ensure a sufficient tensioning effect.

[0041] Please continue to refer to Figure 3 The rotation adjustment assembly 120 further includes a support leg disposed on the base plate 110 , a support plate 127 disposed on the support leg 126 , and a rotation main shaft 128 rotatably connected to the support plate 127 , and the rotating frame 124 is connected to the rotation main shaft 128 .

[0042] Specifically, the legs 126 are screwed to secure the base plate 110 and the support plate 127, ensuring a stable connection between the support plate 127 and the base plate 110. A bushing can be provided on the support plate 127, connecting the rotating spindle 128 to the bushing via a bearing, thereby ensuring smooth rotation of the rotating spindle 128. Furthermore, the rotating frame 124 is connected to the rotating spindle 128, and when the rotating spindle 128 rotates, the rotating frame 124 rotates synchronously with the rotating spindle 128.

[0043] like Figure 4 As shown, the pitch drive assembly 132 includes a second support frame 1322 arranged on the rotating frame 124, and a second drive motor 1324 connected to the second support frame 1322, the output end of the second drive motor 1324 is connected to a second screw rod 1326, and the second support frame 1322 is also slidably connected to a second nut 1328, the second nut 1328 is threadedly connected to the second screw rod 1326, and a second spherical top block 1329 is provided on the second nut 1328, and the second spherical top block 1329 is used to resist the pitch frame 134.

[0044] Specifically, when the second drive motor 1324 is in operation, it drives the second screw rod 1326 to rotate, thereby causing the second nut 1328 to move relative to the second screw rod 1326. At this time, the second spherical top block 1329 provided on the second nut 1328 moves synchronously with the second nut 1328, so as to realize the supporting force of the second spherical top block 1329 on the pitch frame 134, thereby causing the pitch frame 134 to rotate under the force. It should be noted that the second spherical top block 1329 and the second nut 1328 can be connected by a connecting seat, and the connecting seat is slidably connected relative to the second support frame 1322. In addition, the second screw rod 1326 can directly serve as the output end of the second drive motor 1324, thereby saving the use of a coupling and ensuring the movement accuracy of the second drive motor 1324. It can be understood that a bearing is provided at the tail end of the second screw rod 1326, which is rotatably connected to the second support frame 1322 through the bearing to prevent the second screw rod 1326 from shaking significantly during the movement of the second drive motor 1324, which is conducive to increasing the movement accuracy of the second drive motor 1324.

[0045] Please continue to refer to Figure 4 A second tensioning spring 136 is connected between the pitch frame 134 and the rotating frame 124 , and second adjusting screws 138 are respectively provided at both ends of the second tensioning spring 136 so that the second tensioning spring 136 is connected to the pitch frame 134 and the rotating frame 124 respectively through the second adjusting screws 138 .

[0046] Specifically, connecting a second tensioning spring 136 between the pitch frame 134 and the turret frame 124 allows for smoother movement of the pitch frame 134 during relative motion between the two frames 124, preventing jitter and facilitating stability during optical path adjustment. Furthermore, second adjustment screws 138 are provided at each end of the second tensioning spring 136 to adjust the tension of the second tensioning spring 136 to ensure a consistent tensioning effect.

[0047] like Figure 5 and Figure 6As shown, the rotating frame 124 includes a rotating base 1242 and a connecting frame 1244 arranged on the rotating base 1242; the pitch frame 134 includes a connecting plate 1342 and a mounting frame 1344 arranged on the connecting plate 1342; the rotating base 1242 is rotatably connected to the base plate 110, the mounting frame 1344 is rotatably connected to the connecting frame 1244, and the optical element 140 is located on the mounting frame 1344.

[0048] Specifically, the rotating frame 124 is connected to the connecting frame 1244 via a rotating base 1242, facilitating rotational connection of the rotating frame 1244 to the base plate 110 via the rotating base 1242, and rotational connection to the tilt frame 134 via the connecting frame 1244. Furthermore, the tilt frame 134 is connected to the mounting frame 1344 via a connecting plate 1342, facilitating installation of the translation adjustment assembly 150 on the connecting plate 1342, installation of the optical element 140 on the mounting frame 1344, and rotational connection of the tilt frame 1344 to the connecting frame 1244 via the mounting frame 1344. The optical element 140 may be a lens.

[0049] like Figure 7 As shown, the translation drive assembly 152 includes a third support frame 1522 arranged on the connecting plate 1342, and a third drive motor 1524 connected to the third support frame 1522, the output end of the third drive motor 1524 is connected to a third screw rod 1526, and the third support frame 1522 is also slidably connected to a third nut 1528, the third nut 1528 is threadedly connected to the third screw rod 1526, and the optical assembly 154 is arranged on the third nut 1528.

[0050] Specifically, when the third drive motor 1524 is in operation, it drives the third screw rod 1526 to rotate, thereby causing the third nut 1528 to move relative to the third screw rod 1526. At this time, the optical assembly 154, which is mounted on the third nut 1528, moves synchronously with the third nut 1528 to achieve linear adjustment of the optical assembly 154. It should be noted that the third screw rod 1526 can directly serve as the output end of the third drive motor 1524, thereby eliminating the need for a coupling and ensuring the movement accuracy of the third drive motor 1524.

[0051] Please continue to refer to Figure 7 The third nut 1528 is slidably connected to the third support frame 1522 through the slider 1529 , and the translation drive assembly 152 also includes a third tensioning spring 156 connected between the connecting plate 1342 and the slider 1529 .

[0052] Specifically, by connecting the third tensioning spring 156 between the connecting plate 1342 and the slider 1529, the relative movement of the connecting plate 1342 and the slider 1529 can be smoothed, preventing jitter and ensuring stability during optical path adjustment. It is understood that third adjustment screws can also be provided at each end of the third tensioning spring 156 to adjust the tension of the third tensioning spring 156 to ensure a proper tensioning effect. Furthermore, the optical assembly 154 can be connected to the third nut 1528 via the slider 1529.

[0053] like Figure 8 As shown, the optical assembly 154 includes a mounting block 1542 connected to the slider 1529 , and a plurality of planar lenses 1544 disposed on the mounting block 1542 .

[0054] By adopting the above-mentioned form, while ensuring that the relative positions of the plurality of plane lenses 1544 remain unchanged, the entirety of the lens can be translated to ensure the reliability and stability of the optical path adjustment.

[0055] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An optical path adjustment device, characterized in that: The invention comprises a base plate, and a rotation adjustment assembly arranged on the base plate, wherein the rotation adjustment assembly is respectively provided with a pitch adjustment assembly and a translation adjustment assembly; the rotation adjustment assembly comprises a rotation drive assembly arranged on the base plate, and a turret rotatably connected to the base plate, the rotation drive assembly drives the turret to rotate relative to the base plate; the pitch adjustment assembly comprises a pitch drive assembly arranged on the turret, and a pitch frame rotatably connected to the turret, the pitch frame is provided with an optical element, and the pitch drive assembly drives the pitch frame to rotate relative to the turret; the translation adjustment assembly comprises a translation drive assembly, and an optical assembly connected to the translation drive assembly; Wherein, the optical component is adjusted by the translation drive assembly and / or the rotation drive assembly; the optical element is adjusted by the pitch drive assembly and / or the rotation drive assembly; The rotation drive assembly includes a first support frame arranged on the base plate, and a first drive motor connected to the first support frame, the output end of the first drive motor is connected to a first screw rod, and the first support frame is also slidably connected to a first nut, the first nut is threadedly connected to the first screw rod, and the first nut is provided with a first spherical top block, and the first spherical top block is used to resist the rotating frame.

2. The optical path adjustment device according to claim 1, characterized in that: A first tensioning spring is connected between the first supporting frame and the rotating frame. First adjusting screws are respectively provided at both ends of the first tensioning spring, so that the first tensioning spring is connected to the first supporting frame and the rotating frame respectively through the first adjusting screws.

3. The optical path adjustment device according to claim 1 or 2, characterized in that: The rotation adjustment assembly further includes a support leg arranged on the base plate, a support plate arranged on the support leg, and a rotation main shaft rotatably connected to the support plate, and the rotating frame is connected to the rotation main shaft.

4. The optical path adjustment device according to claim 1, wherein: The pitch drive assembly includes a second support frame arranged on the rotating frame, and a second drive motor connected to the second support frame, the output end of the second drive motor is connected to a second screw rod, and the second support frame is also slidably connected to a second nut, the second nut is threadedly connected to the second screw rod, and the second nut is provided with a second spherical top block, and the second spherical top block is used to resist the pitch frame.

5. The optical path adjustment device according to claim 4, characterized in that: A second tensioning spring is connected between the pitch frame and the rotating frame. Second adjusting screws are respectively provided at both ends of the second tensioning spring, so that the second tensioning spring is connected to the pitch frame and the rotating frame respectively through the second adjusting screws.

6. The optical path adjustment device according to claim 4, characterized in that: The rotating frame includes a rotating base and a connecting frame arranged on the rotating base; the pitch frame includes a connecting plate and a mounting frame arranged on the connecting plate; the rotating base is rotatably connected to the base plate, the mounting frame is rotatably connected to the connecting frame, and the optical element is located on the mounting frame.

7. The optical path adjustment device according to claim 6, characterized in that: The translation drive assembly includes a third support frame arranged on the connecting plate, and a third drive motor connected to the third support frame, the output end of the third drive motor is connected to a third screw rod, and the third support frame is also slidably connected to a third nut, the third nut is threadedly connected to the third screw rod, and the optical assembly is arranged on the third nut.

8. The optical path adjustment device according to claim 7, characterized in that: The third nut is slidably connected to the third support frame via a slider, and the translation drive assembly further includes a third tensioning spring connected between the connecting plate and the slider.

9. The optical path adjustment device according to claim 8, characterized in that: The optical assembly includes a mounting block connected to the slider, and a plurality of plane lenses arranged on the mounting block.

Images