An adjustable lens structure

Abstract

The utility model discloses a kind of lens adjustable structures, including shell, the inside of the shell is equipped with first compound eye, the front of the first compound eye is equipped with second compound eye, mirror holder is equipped between the first compound eye and second compound eye, lens is equipped on the mirror holder, the side of the mirror holder is equipped with adjusting support, support crossbeam is equipped in the shell, the support crossbeam is connected with adjusting support. Through lens adjusting structure, lens is moved in the normal plane of central axis connecting line between two compound eyes, to realize the coupling of two compound eyes light spot. Horizontal direction fixed screw locking, adjusting support is fixed on shell crossbeam and cannot be moved at this time, loosen vertical direction fixed screw (keep connection and cannot be removed), rotate vertical adjusting screw clockwise, vertical direction spring compression, mirror holder moves to vertical direction positive direction.

Description

Technical Field

[0001] This utility model relates to the field of projector technology, specifically to an adjustable lens structure. Background Technology

[0002] To eliminate speckle, miniature laser projectors often use two compound eyes. The optical paths between the two compound eyes need to be aligned and coupled. The common method is to use an adjustable mirror module between the two compound eyes for adjustment. In this case, the optical path needs to be turned 90° once, which is not conducive to space utilization. By adjusting the structure of the lens (4), the lens (4) between the two compound eyes can move horizontally and vertically in the normal plane of the central axis, thereby realizing the coupling of the light spots between the two compound eyes without turning the optical path, which is conducive to improving space utilization. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable lens structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a housing is included, a first compound eye is provided inside the housing, a second compound eye is provided in front of the first compound eye, a lens support is provided between the first compound eye and the second compound eye, a lens is provided on the lens support, an adjustment bracket is provided on one side of the lens support, a support beam is provided inside the housing, and the support beam is connected to the adjustment bracket.

[0005] Preferably, a lens body is provided on one side of the lens holder, and a lens pressure plate is provided on one side of the lens body, and the lens pressure plate is connected to the lens holder.

[0006] Preferably, the top surface of the adjusting bracket has a through hole, the angle between the top surface and the vertical surface is 90°, the vertical surface of the adjusting bracket has a thread hole and two oblong holes, there is a bend on each side of the vertical surface, the bottom plane has three oblong holes, one side of the bottom surface has an upward 90° bend, there is a thread hole on this bend, and the angle between the bottom surface and the vertical surface is 90°.

[0007] Preferably, the lens holder and the adjustment bracket can be interlocked. The lens holder has two positioning posts on its back, which pass through two elongated holes on the adjustment bracket. The elongated holes on the lens holder are bolted to the vertical surface of the adjustment bracket. The vertical spring is placed between the recessed bottom surface of the lens holder and the top surface of the adjustment bracket. The vertical adjustment screw passes through a through hole on the top surface of the adjustment bracket, and the vertical spring is connected to the recessed plane of the lens holder. A vertical fixing screw is located on one side of the vertical adjustment screw. The horizontal fixing screw passes through the middle elongated hole of the adjustment bracket and connects to the middle threaded hole on the crossbeam of the housing. The horizontal adjustment screw passes through a through hole on one side of the housing.

[0008] Preferably, the lens holder has a recessed area for receiving springs at the top, an elongated through hole on the front with a center distance L1, and two positioning posts on the back.

[0009] Preferably, the angle between the upper and lower surfaces of the adjustment bracket is 90°, the upper surface has two elongated through holes with equal center-to-center distance L2, where L2≤L1, the upper surface has an angle of 90° with the upper surface, and the upper surface has a through hole.

[0010] Preferably, the bottom surface of the support frame has three elongated holes, with the center distance between the middle elongated holes being L3 and the center distance between the two side elongated holes being equal at L4, where L4 ≤ L3. One side of the bottom surface has a 90° bent plane with a threaded hole.

[0011] Preferably, the adjusting bracket has one spring in the horizontal direction and one spring in the vertical direction. The length of the spring in the horizontal direction is Lx > L4, and the length of the spring in the vertical direction is Ly > L2. Wherein, L4 is the distance between the centers of the two elongated holes on the bottom surface of the adjusting bracket, and L2 is the distance between the centers of the two elongated holes on the vertical surface of the adjusting bracket.

[0012] The lens adjustment structure allows the lenses between the two compound eyes to move horizontally and vertically within the normal plane of the central axis, thus achieving light spot coupling between the two compound eyes. With the horizontal fixing screw tightened, the adjustment bracket is fixed to the housing beam and cannot be moved. Loosen the vertical fixing screw (keeping it connected and not removed), and turn the vertical adjustment screw clockwise. The vertical spring compresses, and the lens bracket moves vertically in the positive direction. Turn the vertical adjustment screw counterclockwise, and the vertical spring extends, causing the lens bracket to move vertically in the negative direction under the spring force. Adjust to the appropriate position and tighten the horizontal fixing screw. The vertical adjustment stroke is the distance from the center of the elongated hole on the adjustment bracket's facade. Similarly, loosen the horizontal fixing screw (keeping it connected and not removed), and turn the horizontal adjustment screw clockwise. The horizontal spring compresses, and the lens module moves horizontally in the positive direction. Turn the horizontal adjustment screw counterclockwise, and the horizontal spring extends, causing the lens module to move horizontally in the negative direction under the spring force. Adjust to the appropriate position and tighten the horizontal fixing screw. The horizontal adjustment stroke is the distance between the centers of the elongated holes on both sides of the bottom surface of the adjustment bracket. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the disassembled structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a top view of the adjustment bracket of this utility model; Figure 4 This is a schematic diagram of the side structure of the adjustment bracket of this utility model; Figure 5This is a top view schematic diagram of the lens holder structure of this utility model; Figure 6 This is a schematic diagram of the side structure of the lens holder of this utility model.

[0014] In the diagram: 1. Housing; 2. Lens body; 3. Second compound eye; 4. Lens; 5. Lens holder; 6. Lens pressure plate; 7. Horizontal spring; 8. Vertical spring; 9. Adjustment bracket; 10. Horizontal fixing screw; 11. Horizontal adjusting screw; 12. Vertical fixing screw; 13. Vertical adjusting screw. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-6 The embodiments provided by this utility model are as follows: Example: Includes a housing 1, inside which is provided a first compound eye 2, in front of which is provided a second compound eye 3, between which is provided a lens holder 5, on which is provided a lens 4, and on one side of the lens holder 5 is provided an adjustment bracket 9, and inside the housing 1 is provided a support beam, which is connected to the adjustment bracket 9.

[0017] The lens holder 5 has a lens body 4 on one side, and a lens pressure plate 6 on one side of the lens body 4. The lens pressure plate 6 is connected to the lens holder 5.

[0018] The top surface of the adjustment bracket 9 has a through hole, and the angle between the top surface and the vertical surface is 90°. The vertical surface of the adjustment bracket 9 has a thread hole and two oblong holes. There is a bend on each side of the vertical surface. The bottom plane has three oblong holes. One side of the bottom surface has an upward 90° bend, and there is a thread hole on this bend surface. The angle between the bottom surface and the vertical surface is 90°.

[0019] The lens holder 5 and the adjusting bracket 9 can be interlocked. Two positioning posts are provided on the back of the four-lens holder. These two positioning posts pass through two elongated holes on the adjusting bracket 9. The elongated holes on the lens holder 5 are bolted to the vertical surface of the adjusting bracket 9. The vertical spring 8 is placed between the recessed bottom surface of the lens holder 5 and the top surface of the adjusting bracket 9. The vertical adjusting screw 13 passes through a through hole on the top surface of the adjusting bracket 9, and the vertical spring 8 is connected to the recessed plane of the lens holder 5. A vertical fixing screw 12 is provided on one side of the vertical adjusting screw 13. The horizontal fixing screw 10 passes through the middle elongated hole of the adjusting bracket 9 and connects to the middle threaded hole on the crossbeam of the housing 1. The horizontal adjusting screw 11 passes through a through hole on one side of the housing 1.

[0020] The lens holder 5 has a recessed area at the top for receiving springs, an elongated through hole on the front with a center distance of L1, and two positioning posts on the back.

[0021] The angle between the vertical and bottom surfaces of the adjustment bracket 9 is 90°. The vertical surface has two elongated through holes with equal center-to-center distance L2, where L2 ≤ L1. The angle between the top surface and the vertical surface is 90°, and the top surface has a through hole.

[0022] The bottom surface of the adjusting bracket 9 has three oblong holes. The center distance between the middle oblong holes is L3, and the center distance between the two oblong holes on both sides is equal to L4, where L4 ≤ L3. There is a 90° bent plane on one side of the bottom surface, and there is a threaded hole on the plane.

[0023] The adjusting bracket 9 has a spring in the horizontal direction and a spring in the vertical direction. The length of the horizontal spring 7 is Lx > L4, and the length of the vertical spring 8 is Ly > L2. L4 is the distance between the centers of the two elongated holes on the bottom surface of the adjusting bracket 9, and L2 is the distance between the centers of the two elongated holes on the vertical surface of the adjusting bracket 9.

[0024] By adjusting the lens 4, the two compound eye lenses 4 can move horizontally and vertically within the normal plane of the line connecting their central axes, thus achieving light spot coupling between the two compound eyes. With the horizontal fixing screw tightened, the adjusting bracket 9 is fixed to the crossbeam of the housing 1 and cannot be moved. The vertical fixing screw is loosened, but the connection remains intact. Turning the vertical adjusting screw 13 clockwise compresses the vertical spring 8, causing the lens bracket 5 to move in the positive vertical direction. Turning the vertical adjusting screw 13 counterclockwise extends the vertical spring 8, causing the lens bracket 5 to move in the negative vertical direction under the spring force. Once adjusted to the appropriate position, the horizontal fixing screw 10 is tightened. The vertical adjustment stroke is the distance between the centers of the elongated holes on the vertical surface of the adjusting bracket 9. Similarly, loosen the horizontal fixing screw while keeping the connection intact. Turn the horizontal adjusting screw 11 clockwise, compressing the horizontal spring 7 and moving the lens module 4 in the positive horizontal direction. Turn the horizontal adjusting screw 11 counterclockwise, extending the horizontal spring 7 and moving the lens module 4 in the negative horizontal direction under the spring force. Adjust to the appropriate position and tighten the horizontal fixing screw 10. The horizontal adjustment stroke is the distance between the centers of the elongated holes on both sides of the bottom surface of the adjusting bracket 9.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended to encompass all variations falling within the meaning and scope of equivalents of the claims. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An adjustable lens structure, comprising a housing (1), characterized in that: The housing (1) has a first compound eye (2) inside, and a second compound eye (3) is provided in front of the first compound eye (2). A lens support (5) is provided between the first compound eye (2) and the second compound eye (3). A lens body (4) is provided on the lens support. An adjustment bracket (9) is provided on one side of the lens support (5). A support beam is provided inside the housing (1). The support beam is connected to the adjustment bracket (9).

2. The adjustable lens structure according to claim 1, characterized in that: The lens holder (5) has a lens body (4) on one side, and a lens pressure plate (6) on one side of the lens body (4). The lens pressure plate (6) is connected to the lens holder (5).

3. The adjustable lens structure according to claim 1, characterized in that: The top surface of the adjustment bracket (9) has a through hole, the angle between the top surface and the vertical surface is 90°, the vertical surface of the adjustment bracket (9) has a thread hole and two elongated holes, there is a bend on each side of the vertical surface, there are three elongated holes on the bottom plane, there is an upward 90° bend on one side of the bottom surface, there is a thread hole on this bend surface, and the angle between the bottom surface and the vertical surface is 90°.

4. The adjustable lens structure according to claim 3, characterized in that: The lens holder (5) and the adjustment bracket (9) can be interlocked. The back of the lens body (4) is provided with two positioning posts. The two positioning posts pass through two elongated holes on the adjustment bracket (9). The elongated holes on the lens holder (5) are connected to the vertical surface of the adjustment bracket (9) by bolts. A vertical spring (8) is placed between the recessed bottom surface of the lens holder (5) and the top surface of the adjustment bracket (9). A vertical adjustment screw (13) is provided above the adjustment bracket (9). The vertical adjustment screw (13) passes through the through hole on the top surface of the adjustment bracket (9) and the vertical spring (8) is connected to the recessed plane of the lens holder (5). A vertical fixing screw (12) is provided on one side of the vertical adjustment screw (13). A horizontal fixing screw (10) passes through the middle elongated hole of the adjustment bracket (9) and is connected to the middle threaded hole on the crossbeam of the housing (1). A horizontal adjustment screw (11) passes through the through hole on one side of the housing (1).

5. The adjustable lens structure according to claim 4, characterized in that: The lens holder (5) has a recessed area for accommodating springs at the top, an elongated through hole on the front with a center distance of L1, and two positioning posts on the back.

6. The adjustable lens structure according to claim 5, characterized in that: The angle between the vertical and bottom surfaces of the adjustment bracket (9) is 90°. The vertical surface has two elongated through holes with equal center distance L2, where L2≤L1. The angle between the top surface and the vertical surface is 90°, and the top surface has a through hole.

7. The adjustable lens structure according to claim 1, characterized in that: The bottom surface of the adjustment bracket (9) is provided with 3 elongated holes. The center distance between the middle elongated hole is L3, and the center distance between the two elongated holes is equal to L4, where L4≤L3. There is a 90° bent plane on one side of the bottom surface, and there is a thread hole on the plane.

8. The adjustable lens structure according to claim 1, characterized in that: The adjusting bracket (9) has a spring in the horizontal direction and a spring in the vertical direction. The length of the horizontal spring (7) is Lx > L4, and the length of the vertical spring (8) is Ly > L2. L4 is the distance between the centers of the elongated holes on both sides of the bottom surface of the adjusting bracket (9), and L2 is the distance between the centers of the elongated holes on both sides of the vertical surface of the adjusting bracket (9).

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