Two-dimensional adjusting frame, adjusting unit and light path system

Abstract

The utility model discloses a two-dimensional adjusting frame, an adjusting unit and an optical path system, and relates to the technical field of optical elements. The two-dimensional adjusting frame comprises an L-shaped lens base and a lens frame, a first rotating shaft is arranged at the bottom of the L-shaped lens base, the L-shaped lens base is provided with a second rotating shaft, the lens frame is connected with the second rotating shaft, the second rotating shaft is rotatably connected with the L-shaped lens base, and the lens frame is used for installing a lens. According to the utility model, the lens frame is supported by the L-shaped lens base, and the L-shaped lens base is small in size, so that the space required for mounting the two-dimensional adjusting frame can be reduced, and the effect of reducing the size of the optical path system is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical elements, and specifically provides a two-dimensional adjustment frame, an adjustment unit and an optical path system. Background Art

[0002] In the field of optics, it is often necessary to converge light beams. The convergence of light beams is usually achieved through an adjustment unit formed by a two-dimensional adjustment frame and a lens. For example, multiple two-dimensional adjustment frames are set up, and the reflection direction of each lens is made the same. Each light beam is irradiated to the lens in the same direction, and each lens forms mutually parallel reflected light. By reasonably setting the position of each two-dimensional adjustment frame, the spacing between the reflected light can be reduced, thereby achieving the convergence operation of each light beam. The two-dimensional adjustment frame needs to be adjusted with high precision during the installation process to ensure that the reflected light beams of each lens remain parallel. For example, the utility model patent with publication number CN112824950A, named a two-dimensional axis rotation adjustment frame, discloses the structure of the current two-dimensional adjustment frame. Each two-dimensional adjustment frame needs to adjust the lens in both horizontal and vertical directions.

[0003] However, the current two-dimensional adjustment frame has the problem of being large in size. The large size of the two-dimensional adjustment frame will result in large spacing between lenses and sparse lens positions, thereby causing the problem of a large optical path system. Utility Model Content

[0004] The utility model provides a two-dimensional adjustment frame, an adjustment unit and an optical path system, which are used to solve the problem that the existing two-dimensional adjustment frame is large in size, which leads to a large optical path system.

[0005] The technical solution of the utility model is as follows:

[0006] A two-dimensional adjustment frame includes an L-shaped mirror base and a mirror frame. A first rotating shaft is provided at the bottom of the L-shaped mirror base, and the L-shaped mirror base is provided with a second rotating shaft. The mirror frame is connected to the second rotating shaft, and the second rotating shaft is rotatably connected to the L-shaped mirror base. The mirror frame is used for mounting lenses.

[0007] In this solution, the mirror frame is connected to the side of an L-shaped mirror mount. This L-shaped mount reduces the width of the entire 2D adjustment frame, thereby reducing its volume. This reduction in volume allows for denser installations, reducing the space required for installation and ultimately reducing the volume of the optical system.

[0008] Preferably, the frame is provided with a mounting surface, the mounting surface is provided with a mounting groove, the mounting groove is used for mounting the lens, and the mounting surface is tilted relative to the plane where the L-shaped lens base is located.

[0009] In this solution, the mounting surface is tilted. Once the lens is installed in the mounting groove on the mounting surface, it is tilted relative to the plane of the L-shaped mirror base, allowing it to be used directly for reflection. In this case, the area required to access the L-shaped mirror base is smaller. Because the bottom surface of the L-shaped mirror base is a rectangular surface, when the sides of the rectangular surfaces completely overlap and the rectangles are arranged in a rectangular array, the required area is even smaller, thus reducing the space required for the L-shaped mirror base installation.

[0010] Preferably, the inclination angle of the mounting surface relative to the plane where the L-shaped mirror base is located is 45°.

[0011] In this solution, the lens installed on the mounting surface has an inclination angle of 45° relative to the plane where the L-shaped mirror base is located. Therefore, the incident light beam emitted to the lens can be parallel to the plane where the L-shaped mirror base is located, and the light beam reflected by the lens can be perpendicular to the incident light beam, which is more convenient for the installation of the light source.

[0012] Preferably, the mirror frame is provided with a light-transmitting hole, the light-transmitting hole passes through the mounting surface, and the axis of the light-transmitting hole is perpendicular to the plane where the L-shaped mirror base is located.

[0013] In this solution, the function of the light-transmitting hole is to allow the light beam behind the lens to illuminate the lens, so that the light beam behind the lens can overlap with the light beam reflected by the lens, thereby improving the light beam convergence effect.

[0014] Preferably, the first rotating shaft and the second rotating shaft are respectively provided with adjustment slots.

[0015] In this solution, the purpose of setting the adjustment groove is to facilitate the adjustment of the position of the first rotating shaft and the second rotating shaft. The adjustment groove is the force point on the first rotating shaft or the second rotating shaft, so force can be applied to the adjustment groove to achieve the effect of adjusting the first rotating shaft and the second rotating shaft.

[0016] Preferably, the adjustment groove includes any one of a straight groove, a cross groove, a star groove or a hexagonal groove.

[0017] In this solution, the adjustment groove preferably adopts the various shapes mentioned above, and the purpose of adjusting the first rotating shaft and the second rotating shaft can be achieved by using common tools.

[0018] Based on the above-mentioned two-dimensional adjustment frame, the present invention further provides an adjustment unit, which includes the above-mentioned two-dimensional adjustment frame and a lens, and the lens is connected to the frame.

[0019] In this solution, the lens is mounted on the frame, so the adjustment unit can adjust the direction of the light beam.

[0020] Preferably, the axes of the first rotating shaft and the second rotating shaft both pass through the center of the reflective surface of the lens.

[0021] In this solution, when the first rotating shaft is rotated, the lens rotates around the center of the reflective surface, the front-to-back displacement distance of the lens is small, and the space required to be reserved for the lens to move is also smaller; similarly, when the second rotating shaft is rotated, the lens flips back and forth around the center of the reflective surface, the front-to-back displacement distance of the lens is small, and the space required to be reserved for the lens to move is also smaller, which can save space for the optical path system where the adjustment unit is located.

[0022] Preferably, the lens is a dichroic mirror, which allows the light beam to pass through and can reflect the light beam.

[0023] In this solution, the light beam behind the lens can overlap with the light beam reflected by the lens. The overlap of the light beams can make the collected light beams more concentrated and increase the energy of the light beams.

[0024] An optical path system includes the above-mentioned adjustment unit, and the light beams are collected by the above-mentioned adjustment unit.

[0025] Beneficial effects of the utility model:

[0026] The utility model supports the mirror frame through the L-shaped mirror seat. The L-shaped mirror seat is compact and can reduce the space required for installing the two-dimensional adjustment frame, thereby achieving the effect of reducing the volume of the optical path system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a structural diagram of Example 1;

[0029] Figure 2 This is a front view of Example 1;

[0030] Figure 3 It is a right side view of the first embodiment;

[0031] Figure 4 A top view of the first embodiment;

[0032] Figure 5 This is a front view of the U-shaped frame in Example 1;

[0033] Figure 6 This is a structural diagram of Example 2;

[0034] Figure 7 This is a front view of Example 2;

[0035] Figure 8 for Figure 7 Cross-sectional view at AA in the middle.

[0036] In the above drawings, the corresponding reference numerals are as follows:

[0037] 1. L-shaped mirror base; 2. Step; 3. First rotating shaft; 4. Adjustment hole; 5. Mounting slot; 6. Mounting surface; 7. Light-transmitting hole; 8. Mirror frame; 9. Locking hole; 10. Second rotating shaft; 11. Lens. DETAILED DESCRIPTION

[0038] In conjunction with the accompanying drawings, the technical solution of the present invention is clearly and completely explained through the specific implementation methods of the embodiments of the present invention.

[0039] Example 1:

[0040] like Figure 1 As shown, this embodiment 1 provides a two-dimensional adjustment frame, including an L-shaped mirror base 1 and a mirror frame 8. The bottom of the L-shaped mirror base 1 is provided with a first rotation axis 3, and the L-shaped mirror base 1 is connected to other structures via the first rotation axis 3. For example, when the L-shaped mirror base 1 needs to be installed in a box, the first rotation axis 3 is connected to the box. The L-shaped mirror base 1 is provided with a second rotation axis 10, and the mirror frame 8 is connected to the second rotation axis 10. The second rotation axis 10 is rotatably connected to the L-shaped mirror base 1. Therefore, the mirror frame 8 can rotate relative to the L-shaped mirror base 1. The mirror frame 8 is used to mount a lens 11.

[0041] The first rotating shaft 3 can be rotatably connected to the L-shaped mirror base 1 or fixedly connected. When the first rotating shaft 3 is rotatably connected to the L-shaped mirror base 1, the first rotating shaft 3 can be rotatably connected or fixedly connected to other structures. When the first rotating shaft 3 is fixedly connected to the L-shaped mirror base 1, the first rotating shaft 3 must be rotatably connected to other structures.

[0042] When installing the two-dimensional adjustment frame, connect the first rotating shaft 3 with other structures, and then detect the angle of the frame 8. If the angle of the frame 8 is not appropriate, the angle of the frame 8 can be adjusted by cooperating with the first rotating shaft 3 and the second rotating shaft 10 respectively.

[0043] The first rotating shaft 3 is in interference fit with the L-shaped mirror base 1, which is used to prevent the L-shaped mirror base 1 from rotating relative to the first rotating shaft 3 after adjusting the angle of the mirror frame 8. Similarly, the second rotating shaft 10 is also in interference fit with the L-shaped mirror base 1.

[0044] The frame 8 is provided with a mounting surface 6 , the mounting surface 6 is provided with a mounting groove 5 , and the lens 11 is installed in the mounting groove 5 .

[0045] The mounting surface 6 is tilted relative to the plane of the L-shaped mirror base 1. It should be noted that the plane of the L-shaped mirror base 1 is a plane parallel to the two L-shaped surfaces of the L-shaped mirror base 1, and the L-shaped surfaces are vertical surfaces. The mounting surface 6 is also a vertical surface and is tilted relative to the L-shaped surfaces.

[0046] The shape of the mounting groove 5 is adapted to the shape of the lens 11. Typically, the lens 11 is circular in shape, and the shape of the mounting groove 5 is a circular groove.

[0047] like Figure 2 As shown, a light-transmitting hole 7 is provided at the bottom of the installation groove 5 , and other light beams can pass through the installation groove 5 through the light-transmitting hole 7 .

[0048] like Figure 5 As shown, in another embodiment, the shape of the frame 8 is a U-shaped structure, and the inner side of the U-shaped structure has an arc surface, which is used to mount the lens 11, and the light beam can also pass directly through the middle of the U-shaped structure and illuminate the lens 11.

[0049] like Figure 1 and Figure 3 As shown, the first rotating shaft 3 and the second rotating shaft 10 are each provided with an adjustment groove, which can be any of a straight groove, a cross groove, a star groove, or a hexagonal groove. The adjustment groove is provided on the end surface of the first rotating shaft 3 and the second rotating shaft 10. When the adjustment groove is a straight groove or a cross groove, a straight screwdriver or a cross screwdriver can be used to adapt to it, and the first rotating shaft 3 or the second rotating shaft 10 can be rotated by the screwdriver. When the adjustment groove is a star groove or a hexagonal groove, a star wrench or a cross wrench can be used to rotate the first rotating shaft 3 or the second rotating shaft 10.

[0050] By providing an adjustment slot on the end surface, the angle of the first rotating shaft 3 or the second rotating shaft 10 can be rotated by applying a tool to the adjustment slot on the end surface. Similarly, the end of the first rotating shaft 3 or the second rotating shaft 10 can be configured as a hexagonal prism, thereby allowing the first rotating shaft 3 or the second rotating shaft 10 to be rotated using a wrench. However, this method requires that the hexagonal prism portion protrude from the L-shaped mirror base 1, which increases the size of the entire two-dimensional adjustment frame. Therefore, the preferred embodiment is to provide an adjustment slot on the end surface of the first rotating shaft 3 or the second rotating shaft 10.

[0051] The L-shaped mirror base 1 is provided with a step 2 at its bottom, and the first rotating shaft 3 extends through the step 2. The step 2 increases the spacing of the L-shaped frame, thereby increasing its height and saving material and reducing weight. Furthermore, when connected to other structures via the first rotating shaft 3, the bottom surface of the first step 2 will abut against the other structure. In this case, the roughness of the bottom surface in contact with the other structure requires machining. However, the area of ​​the step 2 is smaller than the entire bottom surface of the L-shaped frame, so a smaller area needs to be machined, reducing machining costs.

[0052] like Figure 4 As shown, a locking hole 9 can also be provided on the L-shaped mirror base 1. The axis of the locking hole 9 intersects with the axis of the second rotating shaft 10. The locking hole 9 is provided with an internal thread. A locking screw can be provided in the locking hole 9. The locking screw is used to tighten the second rotating shaft 10 to prevent the second rotating shaft 10 from rotating.

[0053] Example 2:

[0054] The second embodiment provides an adjustment unit, which includes the two-dimensional adjustment frame described in the first embodiment.

[0055] like Figure 6 As shown, the adjustment unit further includes a lens 11, which is disposed in the mounting groove 5. The lens 11 can be fixed by snapping into the mounting groove 5, or the lens 11 can be mounted in the mounting groove 5 by gluing.

[0056] like Figure 7 and Figure 8 As shown, after the lens 11 is installed, the axes of the first rotating shaft 3 and the second rotating shaft 10 both pass through the center of the reflective surface of the lens 11. When the angle of the lens 11 is adjusted by the first rotating shaft 3 and the second rotating shaft 10, the angle of the lens 11 will change, while the position of the center of the reflective surface of the lens 11 will not change. In this case, only the first rotating shaft 3 is rotated, and the rotation angle of the lens 11 is the same as the rotation angle of the first rotating shaft 3. Similarly, when the second rotating shaft 10 is rotated, the rotation angle of the lens 11 is the same as the rotation angle of the second rotating shaft 10. In addition, during the rotation of the lens 11, the position of the center of the reflective surface of the lens 11 will not change, and the distance moved by the side of the lens 11 is minimized, which can reduce the space required for installing the adjustment unit.

[0057] The lens 11 may be a dichroic mirror that allows a light beam to pass through and can reflect the light beam.

[0058] Example 3:

[0059] The third embodiment provides an optical path system, including the adjustment unit shown in the second embodiment.

[0060] There are multiple adjustment units, such as two, three, four or more.

[0061] Each adjustment unit is used to redirect the light beam, aligning the axes of its lenses 11. This requires only that the incident light beam be parallel, and the lenses 11 can generate multiple parallel beams of similar distance, thus converging the beams. Similarly, aligning the axes of the lenses 11 of the adjustment units can cause the multiple reflected light beams to coincide, also converging the beams. To achieve this, a dichroic mirror is required as the lens 11.

Claims

1. A two-dimensional adjustment frame, characterized in that: The invention comprises an L-shaped mirror base (1) and a mirror frame (8), wherein a first rotating shaft (3) is provided at the bottom of the L-shaped mirror base (1), a second rotating shaft (10) is provided on the L-shaped mirror base (1), the mirror frame (8) is connected to the second rotating shaft (10), the second rotating shaft (10) is rotatably connected to the L-shaped mirror base (1), and the mirror frame (8) is used for mounting a lens (11).

2. A two-dimensional adjustment frame according to claim 1, characterized in that: The mirror frame (8) is provided with a mounting surface (6), the mounting surface (6) is provided with a mounting groove (5), the mounting groove (5) is used to mount a lens (11), and the mounting surface (6) is tilted relative to the plane where the L-shaped mirror base (1) is located.

3. A two-dimensional adjustment frame according to claim 2, characterized in that: The mounting surface (6) has an inclination angle of 45° relative to the plane where the L-shaped mirror base (1) is located.

4. The two-dimensional adjustment frame according to claim 2, characterized in that: The mirror frame (8) is provided with a light-transmitting hole (7), the light-transmitting hole (7) passes through the mounting surface (6), and the axis of the light-transmitting hole (7) is perpendicular to the plane where the L-shaped mirror base (1) is located.

5. The two-dimensional adjustment frame according to claim 1, characterized in that: The first rotating shaft (3) and the second rotating shaft (10) are respectively provided with adjustment slots.

6. The two-dimensional adjustment frame according to claim 5, characterized in that: The adjustment groove includes any one of a straight groove, a cross groove, a star groove or a hexagonal groove.

7. A regulating unit, characterized in that: The two-dimensional adjustment frame comprises the two-dimensional adjustment frame according to any one of claims 1 to 6, and further comprises a lens (11), wherein the lens (11) is connected to the lens frame (8).

8. The regulating unit according to claim 7, characterized in that: The axes of the first rotating shaft (3) and the second rotating shaft (10) both pass through the center of the reflective surface of the lens (11).

9. The regulating unit according to claim 7, characterized in that: The lens (11) is a dichroic mirror, which allows a light beam to pass through and can reflect the light beam.

10. An optical path system, characterized in that: The method comprises at least two regulating units according to any one of claims 7 to 9.

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