Lens adjustment structure and projection optical system

Abstract

The invention discloses a lens adjustment structure and a projection optical system. The lens adjustment structure comprises: a lens bracket, a base, a first pre-tightening part, a second pre-tightening part, an adjustment spring and a fastener; the lens bracket It includes an adjustment part and a support part; the adjustment part has a first guide hole and a second guide hole which are respectively arranged on both sides of the support part; and the first docking piece between the second guide hole; the base has a first positioning piece and a second positioning piece; the base is provided with a hole between the first positioning piece and the second positioning piece A through opening; a second butt joint located on one side of the through opening is provided in the through opening; the present invention avoids the deviation of the existing optical system due to the position of the laser focusing point relative to the fluorescent powder coating of the fluorescent color wheel. The problem of energy loss and brightness performance degradation of the entire projection optical system.

Description

technical field [0001] The invention relates to an optical element adjustment structure and an optical system with the optical element adjustment structure, in particular to a lens adjustment structure and a projection optical system. Background technique [0002] The optical system is a system composed of various optical elements in a certain order. It is generally used for imaging or optical processing. It can meet a series of requirements and obtain a high-quality optical system that meets the needs. It is not a simple combination of several optical elements. The parameters of each optical element must be reasonably configured and properly determined. In the prior art, due to errors in optical path calculation, mechanical processing technology, assembly technology, etc., the deviation of the optical system on the optical path is often caused, thereby affecting the performance of the optical system. As an important optical element in the optical system, the lens's positio...

AI Technical Summary

Problems solved by technology

[0003] A projector is a device that can project images or videos onto a screen. The key to determining the quality of the projection often lies in the optical system of the projector. The projection optical system in the prior art has the following problems: because the focal point of the laser light is relative to the fluorescent color The position of the phosphor coating of the wheel will always have a certain deviation, the laser efficiency of the phosphor is insufficient, the energy loss of the projection optical system will increase, and the brightness performance of the entire projection optical system will decrease

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