A uniform light rod fixing device

Abstract

A light dodging rod fixing device, comprising: a fixing component and an adjusting support component. The fixing component is used to directly fix the homogenizing rod, including the base body and the first fastening component. One end of the base body is provided with a fastening counterbore, and the other end is provided with a rectangular light incident positioning through hole leading to the fastening counterbore. The dodging rod is loaded into the base body through the rectangular light incident positioning through hole and passes through the fastening counterbore, and the first fastening component is installed in the fastening counterbore to fix the dodging rod. The adjustable support component is used to support and fix the fixed component, including a support base and a second fastening component. A support positioning step hole is provided inside the support base, and the support positioning step hole includes a support step hole and a light-emitting positioning through hole. In the supporting step hole, the light emitting surface of the homogenizing rod is in the light emitting positioning through hole or passes through the light emitting positioning through hole, and the second fastening component presses the base body. The invention has the beneficial effect of ensuring that the dodging rod is fully in contact with the air and preventing the center of the dodging rod from being deviated.

Description

Technical field [0001] The present invention belongs to the field of exposure and projection techniques, and more particularly to a uniform light rod fixture. Background technique [0002] In exposure and projection techniques, the outgoing light generated by the light source is generally not uniform, and the demand of high quality imaging cannot be met. Therefore, it is usually increasing to achieve smooth light on the propagation path of the outgoing light of the light source, and then incident therefrom to the subsequent optical element. It is mainly reflected by the total reflection principle of light, and the light passes through multiple reflections in the moving rod, forming a two-dimensional virtual light source matrix such that the light homogenization is achieved at the outlet therein. [0003] In practical applications, the uniform light rod is more than the glass device of the long square shape, the size is small and easy to break, and the installation fixation method...

AI Technical Summary

Problems solved by technology

[0004] There are two main installation methods at present. One is that the dodging rod is directly in rigid contact with the fixing device. In order to ensure its center alignment, the contact area between the dodging rod and the fixing device is relatively large, and its side cannot be contacted as much as possible. Into the air, resulting in poor uniformity, large area of ​​rigid contact is also prone to greater stress caused by temperature and damage to the uniform rod; the other method mainly uses a long soft support, long-term laser irradiation will accelerate With the aging of the soft support, the fixing effect is greatly weakened, and the center of the light-incoming surface and the light-emitting surface cannot be guaranteed to remain stable. If the center position deviates greatly, it will cause a large loss of light energy

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