A fixing structure of a light homogenizing rod

Abstract

The utility model relates to a fixing structure of a homogenizing rod, comprising: a homogenizing rod fixing tube, in which a homogenizing rod is arranged; a homogenizing rod fixing spring piece 1, which is connected to the homogenizing rod fixing tube, and the homogenizing rod fixing spring piece 1 is used to limit the homogenizing rod on the homogenizing rod fixing tube; a homogenizing rod fixing spring piece 2, which is arranged on the homogenizing rod fixing tube, and is used to press the homogenizing rod onto the inner wall of the homogenizing rod fixing tube; a pressure cap, in which a limiting glass is arranged, one end of the homogenizing rod is in contact with the limiting glass, and the limiting glass is used to position one end of the homogenizing rod in the length direction. The fixing structure of the homogenizing rod described in the utility model can freely adjust the fixing positions of the homogenizing rod fixing spring piece 1 and the homogenizing rod fixing spring piece 2 according to the preset position by setting the homogenizing rod fixing spring piece 1 and the homogenizing rod fixing spring piece 2 that can flexibly adjust the position, and can quickly switch the fixing position to check and solve the problem when a problem with the homogenizing rod occurs.

Description

Technical Field

[0001] The utility model relates to the technical field of optics, in particular to a fixing structure of a light homogenizing rod. Background Art

[0002] Homogenizer rods, also known as optical integrator rods, are used to homogenize light beams and are widely used in laser display products, such as laser projectors, laser 3D printers, etc. Homogenizer rods are generally divided into hollow homogenizer rods and solid homogenizer rods.

[0003] Although the hollow homogenizing rod is easy to fix, the high-reflection film on the inner wall is prone to aging and falling off under high-temperature light. The four side walls are difficult to splice and are easy to fall apart. At the same time, the overall processing accuracy is worse than that of the solid homogenizing rod.

[0004] The solid light homogenizing rod is totally reflected directly by the outer wall glass, and the light beams with multiple divergent angles are reflected multiple times, so as to achieve the purpose of uniform light beam distribution. However, it is relatively difficult to fix and inconvenient to debug. When fixing the solid light homogenizing rod, the fixing device will have more contact surfaces with the light homogenizing rod, and the light beam cannot form total reflection on the contact surface, which will cause light energy loss. In severe cases, it will even form light and dark stripes and dark spots on the exposure surface. If the shape of the fixed position and the relative position with the light homogenizing rod are not appropriate, it will seriously affect the light homogenizing effect. The shape of the fixed position of the existing solid light homogenizing rod fixing structure and the relative position with the light homogenizing rod are fixed, which makes it difficult to troubleshoot when problems occur. The fixed position cannot be adjusted, and the problem cannot be quickly troubleshooted and solved. Utility Model Content

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the fixed structure of the solid light homogenizing rod in the prior art is relatively rigid and cannot be flexibly adjusted when adjustment is required, thus making it inconvenient to troubleshoot problems.

[0006] In order to solve the above technical problems, the utility model provides a fixing structure of a homogenizing rod, comprising: a homogenizing rod fixing tube, in which a homogenizing rod is arranged; a homogenizing rod fixing spring piece 1, which is at least one, the homogenizing rod fixing spring piece 1 is connected to the homogenizing rod fixing tube, and the homogenizing rod fixing spring piece 1 is used to limit the homogenizing rod on the homogenizing rod fixing tube; a homogenizing rod fixing spring piece 2, which is at least one, the homogenizing rod fixing spring piece 2 is arranged on the homogenizing rod fixing tube, and the homogenizing rod fixing spring piece 2 is used to press the homogenizing rod to the inner wall of the homogenizing rod fixing tube; a pressure cap, which is connected to one end of the homogenizing rod fixing tube, and a limiting glass is arranged in the pressure cap, one end of the homogenizing rod is in contact with the limiting glass, and the limiting glass is used to position one end of the homogenizing rod in the length direction.

[0007] In one embodiment of the utility model, the light homogenizing rod fixing tube is provided with a light homogenizing rod installation groove, and the light homogenizing rod installation groove runs through both ends of the light homogenizing rod fixing tube in the length direction.

[0008] In one embodiment of the utility model, an external thread is provided on the outer wall of one end of the light homogenizing rod fixing tube connected to the pressure cap, and the pressure cap and the external thread are threadedly connected.

[0009] In one embodiment of the utility model, a glass piece installation groove is provided on the end surface of the homogenizing rod fixing tube connected to one end of the pressure cap, the glass piece installation groove is connected to the homogenizing rod installation groove, and the limiting glass is arranged in the glass piece installation groove.

[0010] In an embodiment of the present invention, a circular through hole 1 is provided in the middle of the pressure cap, and the circular through hole 1 is arranged opposite to the limiting glass.

[0011] In one embodiment of the utility model, the homogenizing rod installation groove is a U-shaped groove, and a homogenizing rod positioning support rib 1 is provided on the inner wall of one side of the homogenizing rod installation groove, and a homogenizing rod positioning support rib 2 is provided on the bottom surface of the homogenizing rod installation groove. The homogenizing rod positioning support rib 1 and the homogenizing rod positioning support rib 2 are used for positioning and tightening the homogenizing rod.

[0012] In one embodiment of the present invention, the first light homogenizing rod fixing spring piece and the first light homogenizing rod positioning support rib respectively abut against two opposite surfaces of the light homogenizing rod, and the second light homogenizing rod fixing spring piece and the second light homogenizing rod positioning support rib respectively abut against the other two opposite surfaces of the light homogenizing rod.

[0013] In one embodiment of the utility model, the light-homogenizing rod fixing spring piece includes a spring piece body and a spring piece fixing screw. The spring piece body is in the shape of a thin sheet with a V-shaped bending portion in the middle. The two ends of the spring piece body are locked on the light-homogenizing rod fixing tube by a spring piece fixing screw.

[0014] In one embodiment of the utility model, the light homogenizing rod fixing tube is provided with a plurality of screw holes, and the spring piece fixing screws are screwed into the screw holes.

[0015] In one embodiment of the utility model, the second spring piece for fixing the light homogenizing rod includes a second spring piece body and two spring piece fixing screws. The second spring piece body is in the shape of a rectangular thin sheet folded in half. The second spring piece body is attached to the side wall of one side of the light homogenizing rod mounting groove, and a V-shaped bending portion is provided on the end face of the second spring piece body away from the light homogenizing rod mounting groove.

[0016] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0017] The fixing structure of the homogenizing rod described in the utility model can freely adjust the fixing positions of the homogenizing rod fixing spring piece 1 and the homogenizing rod fixing spring piece 2 according to the preset positions by setting the homogenizing rod fixing spring piece 1 and the homogenizing rod fixing spring piece 2 which can flexibly adjust the positions. When a problem with the homogenizing rod occurs, the fixing positions can be quickly switched to check and solve the problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0019] Figure 1 This is an assembly diagram of the fixing structure of the light homogenizing rod in the preferred embodiment of the utility model;

[0020] Figure 2 An exploded view of the fixing structure of the light homogenizing rod in the preferred embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the light homogenizing rod fixing cylinder in the preferred embodiment of the utility model;

[0022] Figure 4 This is a structural schematic diagram of the spring body 1 in the preferred embodiment of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the spring body 2 in the preferred embodiment of the utility model.

[0024] Explanation of the markings in the specification: uniform light rod fixing tube 1, uniform light rod mounting groove 11, external thread 12, glass piece mounting groove 13, uniform light rod positioning support rib 1 14, uniform light rod positioning support rib 2 15, screw hole 16, connecting flange 17, through hole 2 171, uniform light rod 2, uniform light rod fixing spring piece 1 3, spring piece body 1 31, spring piece fixing screw 1 32, V-shaped bending portion 1 33, pressure cap 4, circular through hole 1 41, limiting glass 5, uniform light rod fixing spring piece 2 6, spring piece body 2 61, spring piece fixing screw 2 62, V-shaped bending portion 2 63. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0026] Reference Figure 1 , 2As shown, the fixing structure of the light homogenizing rod of the utility model comprises: a light homogenizing rod fixing tube 1, a light homogenizing rod 2, a light homogenizing rod fixing spring piece 3, a pressure cap 4 and a limiting glass 5; the light homogenizing rod fixing tube 1, in which the light homogenizing rod 2 is arranged; the light homogenizing rod fixing spring piece 3, which is at least one, the light homogenizing rod fixing spring piece 3 is connected to the light homogenizing rod fixing tube 1, and the light homogenizing rod fixing spring piece 3 is used to limit the light homogenizing rod 2 on the light homogenizing rod fixing tube 1; the light homogenizing rod fixing spring piece 2 6, which is at least one, the light homogenizing rod fixing spring piece 2 6 is arranged on the light homogenizing rod fixing tube 1, and the light homogenizing rod fixing spring piece 2 6 is used to press the light homogenizing rod 2 to the inner wall of the light homogenizing rod fixing tube 1; the pressure cap 4, which is connected to one end of the light homogenizing rod fixing tube 1, and the pressure cap 4 is provided with a limiting glass 5, one end of the light homogenizing rod 2 is in contact with the limiting glass 5, and the limiting glass 5 is used to position one end of the light homogenizing rod 2 in the length direction. The limiting glass 5 only serves to limit one end of the homogenizing rod 2 when the homogenizing rod 2 is installed. The homogenizing rod 2 is installed on the homogenizing rod fixing tube 1 and is fixed by the homogenizing rod fixing spring piece 1 3 and the homogenizing rod fixing spring piece 2 6. The limiting glass 5 needs to be removed from the pressure cap 4.

[0027] The uniform light rod fixing spring piece 2 6 and the uniform light rod fixing spring piece 1 3 cooperate to fix the uniform light rod 2 in the uniform light rod fixing tube 1, and the uniform light rod fixing spring piece 1 3 and the uniform light rod fixing spring piece 2 6 respectively press the uniform light rod 2 from two sides; when a problem occurs, changing the fixing position of the uniform light rod fixing spring piece 1 3 and the uniform light rod fixing spring piece 2 6 can quickly test the influence of the fixing position of the spring piece on the uniform light effect, thereby quickly solving the problem of poor uniform light effect caused by poor fixation of the uniform light rod.

[0028] Reference Figure 3 As shown, the homogenizing rod fixing tube 1 is provided with a homogenizing rod mounting groove 11, and the homogenizing rod mounting groove 11 runs through both ends of the length direction of the homogenizing rod fixing tube 1. An external thread 12 is provided on the outer wall of the end of the homogenizing rod fixing tube 1 connected to the pressure cap 4, and the pressure cap 4 is threadedly connected to the external thread 12. A glass piece mounting groove 13 is provided on the end surface of the end of the homogenizing rod fixing tube 1 connected to the pressure cap 4, and the glass piece mounting groove 13 is connected to the homogenizing rod mounting groove 11, and the limiting glass 5 is arranged in the glass piece mounting groove 13.

[0029] In the above structure, a circular through hole 41 is provided in the middle of the pressure cap 4 , and the circular through hole 41 is arranged opposite to the limiting glass 5 , and the area of ​​the limiting glass 5 facing the circular through hole 41 is used for total reflection of the homogenizing rod 2 .

[0030] In the above structure, the light homogenizing rod installation groove 11 is a U-shaped groove, and a light homogenizing rod positioning support rib 14 is provided on the inner wall of one side of the light homogenizing rod installation groove 11, and a light homogenizing rod positioning support rib 2 15 is provided on the bottom surface of the light homogenizing rod installation groove 11, and the light homogenizing rod positioning support rib 1 14 and the light homogenizing rod positioning support rib 2 15 are used for positioning and pressing the light homogenizing rod 2. The light homogenizing rod positioning support rib 1 14 and the light homogenizing rod positioning support rib 2 15 are both arched convex shapes, and the light homogenizing rod positioning support rib 1 14 presses the light homogenizing rod 2 from the side of the light homogenizing rod 2, and the light homogenizing rod positioning support rib 2 15 presses the light homogenizing rod 2 from the bottom of the light homogenizing rod 2. The light homogenizing rod fixing spring piece 1 3 and the light homogenizing rod positioning support rib 1 14 are respectively against two opposite surfaces of the light homogenizing rod, and the light homogenizing rod fixing spring piece 2 6 and the light homogenizing rod positioning support rib 2 15 are respectively against the other two opposite surfaces of the light homogenizing rod. In this way, the light homogenizing rod fixing spring piece 1 3 and the light homogenizing rod positioning support rib 1 14 , the light homogenizing rod fixing spring piece 2 6 and the light homogenizing rod positioning support rib 2 15 respectively position the light homogenizing rod 2 from two perpendicular directions.

[0031] Reference Figure 4 As shown, the light homogenizing rod fixing spring piece 3 includes a spring piece body 31 and a spring piece fixing screw 32. The spring piece body 31 is a thin sheet with a V-shaped bending portion 33 in the middle. The two ends of the spring piece body 31 are locked on the light homogenizing rod fixing tube 1 by the spring piece fixing screw 32. The V-shaped bending portion 33 is bent toward one side of the light homogenizing rod mounting groove 11, so that the V-shaped bending portion 33 is just pressed against the upper end surface of the light homogenizing rod 2. The light homogenizing rod fixing tube 1 is provided with a plurality of screw holes 16, and the spring piece fixing screw 32 is screwed into the screw hole 16.

[0032] Reference Figure 5 As shown, the second light homogenizing rod fixing spring piece 6 includes a second spring piece body 61 and a second spring piece fixing screw 62. The second spring piece body 61 is in the shape of a folded rectangular thin sheet. The second spring piece body 61 is attached to the side wall of one side of the light homogenizing rod mounting groove 11, and a second V-shaped bending portion 63 is provided on the end surface of the second spring piece body 61 away from the light homogenizing rod mounting groove 11. The second V-shaped bending portion 63 protrudes to the side away from the inner wall of the light homogenizing rod mounting groove 11, so that the second V-shaped bending portion 63 can be pressed against the side wall of the light homogenizing rod 2.

[0033] In the above structure, a connecting flange 17 is provided at one end of the homogenizing rod fixing tube 1 away from the pressure cap 4, and the connecting flange 17 is provided with a second through hole 171, which is connected to the homogenizing rod mounting groove 11, and the homogenizing rod 2 can be inserted or pulled out from the position of the second through hole 171.

[0034] The installation steps of the fixing structure of the light homogenizing rod of the utility model are as follows:

[0035] 1. Place the limiting glass 5 into the glass piece installation groove 13 on the light homogenizing rod fixing tube 1, and tighten the pressure cap 4 to press the limiting glass 5;

[0036] 2. Install the light-dispersing rod fixing spring piece 3 to the first screw hole 16 on the light-dispersing rod fixing tube 1 near the pressure cap side, and tighten it with the spring piece fixing screw 32, and ensure that the light-dispersing rod fixing spring piece 3 is in a retracted state to ensure that there is no interference when the light-dispersing rod 2 is inserted;

[0037] 3. Place the light homogenizing rod 2 into the light homogenizing rod fixing tube 1 from the second through hole 171, the end face of the light homogenizing rod 2 contacts the limiting glass 5, and the two side faces of the light homogenizing rod 2 are pressed tightly against the light homogenizing rod positioning support rib 1 14 and the light homogenizing rod positioning support rib 2 15;

[0038] 4. Loosen the spring fixing screw 32 of the light homogenizing rod fixing spring 3, press the light homogenizing rod fixing spring 3 from the side, and then tighten the spring fixing screw 32;

[0039] 5. Fix the uniform light rod fixing spring piece 1 3 and the uniform light rod fixing spring piece 2 6 at two fixed positions close to the side of the pressure cap 4, and tighten the spring piece fixing screw 1 32 and the spring piece fixing screw 2 62; at this time, the uniform light rod 2 is installed. When it is installed into the optical machine, if stripes, dark spots and other defects are found due to the uniform light rod 2, the fixed positions of the uniform light rod fixing spring piece 1 3 and the uniform light rod fixing spring piece 2 6 can be quickly adjusted to quickly check the cause of the defect and solve the problem.

[0040] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A fixing structure of a light homogenizing rod, characterized in that: include, A light homogenizing rod fixing cylinder, in which a light homogenizing rod is arranged; A light-homogenizing rod fixing spring piece 1, which is at least one, the light-homogenizing rod fixing spring piece 1 is connected to the light-homogenizing rod fixing tube, and the light-homogenizing rod fixing spring piece 1 is used to limit the light-homogenizing rod on the light-homogenizing rod fixing tube; A second light-homogenizing rod fixing spring piece, which is at least one, and the second light-homogenizing rod fixing spring piece is arranged on the light-homogenizing rod fixing tube, and the second light-homogenizing rod fixing spring piece is used to press the light-homogenizing rod onto the inner wall of the light-homogenizing rod fixing tube; A pressure cap is connected to one end of the light homogenizing rod fixing tube, and a limiting glass is arranged inside the pressure cap. One end of the light homogenizing rod contacts the limiting glass, and the limiting glass is used to position one end of the light homogenizing rod in the length direction.

2. The fixing structure of the light homogenizing rod according to claim 1, characterized in that: The light homogenizing rod fixing tube is provided with a light homogenizing rod installation groove, and the light homogenizing rod installation groove runs through both ends of the light homogenizing rod fixing tube in the length direction.

3. The fixing structure of the light homogenizing rod according to claim 1, characterized in that: An external thread is arranged on the outer wall of one end of the light homogenizing rod fixing tube connected to the pressing cap, and the pressing cap is threadedly connected to the external thread.

4. The fixing structure of the light homogenizing rod according to claim 2, characterized in that: A glass piece installation groove is arranged on the end surface of the light homogenizing rod fixing tube connected to one end of the pressure cap, the glass piece installation groove is communicated with the light homogenizing rod installation groove, and the limiting glass is arranged in the glass piece installation groove.

5. The fixing structure of the light homogenizing rod according to claim 4, characterized in that: A circular through hole 1 is arranged in the middle of the pressure cap, and the circular through hole 1 is arranged opposite to the limit glass.

6. The fixing structure of the light homogenizing rod according to claim 2, characterized in that: The homogenizing rod installation groove is a U-shaped groove, and a homogenizing rod positioning support rib 1 is provided on the inner wall of one side of the homogenizing rod installation groove, and a homogenizing rod positioning support rib 2 is provided on the bottom surface of the homogenizing rod installation groove. The homogenizing rod positioning support rib 1 and the homogenizing rod positioning support rib 2 are used for positioning and pressing the homogenizing rod.

7. The fixing structure of the light homogenizing rod according to claim 6, characterized in that: The first light homogenizing rod fixing spring piece and the first light homogenizing rod positioning support rib are respectively against two opposite surfaces of the light homogenizing rod, and the second light homogenizing rod fixing spring piece and the second light homogenizing rod positioning support rib are respectively against the other two opposite surfaces of the light homogenizing rod.

8. The fixing structure of the light homogenizing rod according to claim 1, characterized in that: The light homogenizing rod fixing spring piece 1 includes a spring piece body 1 and a spring piece fixing screw 1. The spring piece body 1 is a thin sheet with a V-shaped bending part 1 in the middle. The two ends of the spring piece body 1 are locked on the light homogenizing rod fixing tube by a spring piece fixing screw 1.

9. The fixing structure of the light homogenizing rod according to claim 8, characterized in that: The light homogenizing rod fixing tube is provided with a plurality of screw holes, and the spring piece fixing screws are screwed into the screw holes.

10. The fixing structure of the light homogenizing rod according to claim 6, characterized in that: The second spring piece for fixing the light-homogenizing rod includes a second spring piece body and two spring piece fixing screws. The second spring piece body is in the shape of a rectangular thin sheet folded in half. The second spring piece body is attached to the side wall on one side of the light-homogenizing rod mounting groove, and a second V-shaped bending portion is provided on the end face of the second spring piece body away from the light-homogenizing rod mounting groove.

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