Dodging rod fixing and adjusting device

Abstract

The invention discloses a dodging rod fixing and adjusting device. The dodging rod fixing and adjusting device comprises a light rod fixing device and an adjusting device. The light bar fixing device comprises a fixed lens cone, a light uniformizing bar, a light bar limiter and a fixed rubber ring. The light rod is installed in the fixed lens cone, the front end of the light rod is fixed to the lens cone through glue, the light rod limiting and fixing rubber ring is installed at the tail end of the light rod, and the portion, making contact with the light rod, of the light rod limiting and fixing rubber ring is a small boss, and on the premise that total reflection of the light rod is not damaged, fixing of the light uniformizing rod is achieved. The optical wand adjusting device comprises a sealing rubber ring, a tightening screw and an adjusting lens cone, the adjusting lens cone is connected with the fixed lens cone through precise threads, and precise adjustment of the optical wand is achieved. A sealing rubber ring is arranged between the adjusting lens cone and the fixed lens cone, so that dust is prevented from entering the lens cone through a gap. The tightening screw plays a role in fixing after adjustment.

Description

Technical Field

[0001] The invention belongs to the technical field of exposure and projection, and specifically designs a light homogenizing rod fixing and adjusting device. Background Art

[0002] In exposure projection technology, the light emitted by the light source is generally not uniform enough to meet the requirements of high-quality imaging. Therefore, a light homogenizer is usually added to the propagation path of the light emitted by the light source to homogenize the light. The installation, fixing and adjustment method of the light homogenizer has a great influence on the homogenization effect. Summary of the invention

[0003] The invention provides a light homogenizing rod adjustment and fixing device to overcome the problem of poor light homogenizing effect in the prior art fixing and adjustment process.

[0004] To achieve the above objectives, the present invention adopts the following technical solutions. A light rod fixing and adjusting device comprises a light rod fixing device and an adjusting device. The light rod fixing device comprises a fixed lens barrel, a light rod, a light rod limiter and a fixing rubber ring. The light rod is installed in the fixed lens barrel, the front end of the light rod is fixed to the lens barrel by gluing, and the light rod limiter and fixing rubber ring are installed at the end of the light rod. The light rod adjusting device comprises a sealing rubber ring, a tightening screw and an adjusting lens barrel, and the adjusting lens barrel is connected to the fixed lens barrel by a precision thread. A sealing rubber ring is provided between the adjusting lens barrel and the fixed lens barrel. The tightening screw plays a role of fixing after adjustment.

[0005] Furthermore, the fixed lens barrel and the light rod are limited with rectangular positioning holes, and circular through holes are respectively provided at the four corners of the positioning holes, and the parts matching with the light rod are all small protrusions.

[0006] Furthermore, the light rod fixing device inserts the front end of the light rod into the rectangular hole of the fixed lens barrel, and applies a small amount of glue on the small convex point that matches the light rod to fix the light rod.

[0007] Furthermore, the optical rod is limitedly inserted into the end of the optical rod and falls into the fixed lens barrel, and the fixed rubber ring is inserted into the groove of the fixed lens barrel. While avoiding damaging the optical rod, the optical rod is limitedly installed in the fixed lens barrel.

[0008] Furthermore, the sealing rubber ring is installed in a groove of the fixed lens barrel.

[0009] Furthermore, the adjusting lens barrel is provided with precision threads and matching guides, and the adjusting lens barrel is connected to the fixed lens barrel via the precision threads.

[0010] Furthermore, the optical rod adjustment device can realize precise forward and backward movement of the optical rod by rotating the fixed lens barrel, and cooperates with the guide to control the concentricity of the optical rod and the rear optical system during the adjustment process.

[0011] Furthermore, after the adjustment of the light rod adjustment device is completed, the position of the light rod can be fixed by simply tightening the screws.

[0012] Compared with the prior art, the present invention achieves precise adjustment of the light rod while ensuring the uniform light effect, fixes the sealing rubber ring on the lens barrel, ensures the sealing performance during the adjustment process, and prevents dust from entering the lens barrel through the adjustment device and contaminating the rear optical system. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a cross-sectional view of the light homogenizing rod fixing and adjusting device.

[0014] Figure 2 , Figure 3 This is a three-dimensional diagram of the light homogenizing rod fixing device.

[0015] Figure 4 This is a three-dimensional diagram of the light homogenizing rod adjustment device.

[0016] Figure 5 This is an exploded view of the light-diffusing rod fixing and adjustment device. DETAILED DESCRIPTION

[0016] To make the technical solution of the present invention clearer, the embodiments of the present invention will be described below in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of invention protection.

[0017] See also Figures 1 to 4 The present invention discloses a light-uniform rod fixing and adjusting device, which includes a light-rod fixing device and an adjusting device. The light-rod fixing device includes a fixed lens barrel 1, a light-uniform rod 2, a light-rod limiter 3 and a fixed rubber ring 4. The light-rod is installed in the fixed lens barrel 1, and the front end of the light-rod 2 is fixed to the lens barrel by gluing, and the light-rod limiter 3 and the fixed rubber ring 4 are installed at the end of the light-rod. The light-rod adjusting device includes a sealing rubber ring 5, a tightening screw 7 and an adjusting lens barrel 6, and the adjusting lens barrel 6 is connected to the fixed lens barrel 1 by a precision thread. A sealing rubber ring 5 is provided between the adjusting lens barrel 6 and the fixed lens barrel 1. The tightening screw 7 plays a role in fixing after adjustment.

[0018] See also Figure 2 , Figure 3 The fixed lens barrel 1 and the light rod limiter 3 are provided with rectangular positioning holes, and the four corners of the positioning holes are respectively provided with prototype through holes, and the parts matching with the light rod are all small convex points.

[0019] See also Figure 2 , insert the front end of the light rod 2 into the rectangular hole of the fixed lens barrel 1, and apply a small amount of glue on the small convex point that matches the light rod 2 to fix the light rod 2.

[0020] See also Figure 3 , insert the light rod limiter 3 into the end of the light rod 2 and drop it into the fixed lens barrel 1, insert the fixed rubber ring 4 into the groove of the fixed lens barrel 1, and install the light rod limiter 3 in the fixed lens barrel 1 while avoiding damaging the light rod 2.

[0021] See also Figure 1 , the sealing rubber ring 5 is installed in the groove of the fixed lens barrel 1.

[0022] The adjusting lens barrel 6 is provided with precision threads and matching guides, and the adjusting lens barrel 6 is connected to the fixed lens barrel 1 via the precision threads.

[0023] By rotating and fixing the lens barrel 1, the optical rod 2 can be precisely moved forward and backward, and the guide is used to control the concentricity of the optical rod 2 and the rear optical system during the adjustment process.

[0024] After the adjustment is completed, the position of the light rod 2 can be fixed by simply tightening the tightening screw 7.

[0024] Due to the limitation of textual expression, the above description is only exemplary and not exhaustive. The present invention is not limited to the disclosed embodiments. Without departing from the scope and spirit of the above examples, a number of improvements and modifications may be made by those skilled in the art, and these improvements and modifications shall also be regarded as the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the claims.

Claims

1. A light rod fixing and adjustment device, comprising a light rod fixing device and an adjustment device. The light rod fixing device comprises a fixed lens barrel, a light rod, a light rod limiter and a fixing rubber ring. The light rod is installed in the fixed lens barrel, and the front end of the light rod is fixed to the lens barrel by gluing, and the light rod limiter and fixing rubber ring are installed at the end of the light rod. The light rod adjustment device comprises a sealing rubber ring, a tightening screw and an adjustment lens barrel, and the adjustment lens barrel is connected to the fixed lens barrel by a precision thread. A sealing rubber ring is provided between the adjustment lens barrel and the fixed lens barrel. Tightening the screw plays a role of fixing after adjustment.

2. The optical rod fixing device according to claim 1, characterized in that: The fixed lens barrel and the light rod are limited with rectangular positioning holes, and circular through holes are respectively provided at the four corners of the positioning holes, and the parts matching with the light rod are all small convex points.

3. The optical rod fixing device according to claim 1, characterized in that: The front end of the light rod is inserted into the rectangular hole of the fixed lens barrel, and a small amount of glue is applied to the small convex point that matches the light rod to fix the light rod.

4. The optical rod fixing device according to claim 1, characterized in that: The optical rod is limitedly inserted into the end of the optical rod and falls into the fixed lens barrel, and the fixed rubber ring is inserted into the groove of the fixed lens barrel. While avoiding damaging the optical rod, the optical rod is limitedly installed in the fixed lens barrel.

5. The light rod adjustment device according to claim 1, characterized in that: The sealing rubber ring is installed in the groove of the fixed lens barrel.

6. The light rod adjustment device according to claim 1, characterized in that: The adjusting lens barrel is provided with precision threads and matching guides, and the adjusting lens barrel is connected to the fixed lens barrel via the precision threads.

7. The light rod adjustment device according to claim 1, characterized in that: The optical rod adjustment device can realize precise forward and backward movement of the optical rod by rotating the fixed lens barrel, and cooperates with the guide to control the concentricity of the optical rod and the rear optical system during the adjustment process.

8. The light rod adjustment device according to claim 1, characterized in that: After the adjustment of the light rod adjustment device is completed, the position of the light rod can be fixed by simply tightening the tightening screw.

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