Reflector adjusting mechanism, projection ray machine and projector

Abstract

The invention discloses a reflector adjusting mechanism, a projection ray machine and a projector. The reflector adjusting mechanism comprises a fixed seat, a support member, a connecting member and aplurality of adjusting members, wherein the fixed seat is provided with a through hole and a plurality of adjusting holes, and the through hole and the adjusting holes extend in parallel; the supportmember is opposite to the fixed seat and provided with a threaded hole corresponding to the through hole. The back of the support is used for fixing the bearing reflector; the rod part of the connecting member penetrates through the through hole and is connected with the threaded hole, and the head part abuts against the front surface of the fixed seat; the adjusting members are arranged in the adjusting holes in a one-to-one correspondence mode and act on the support member in the axis direction of the adjusting holes so that the supporting member can swing relative to the fixed seat. The back face of the fixed seat comprises a first limiting face, all tangential directions corresponding to the screwing-in circumferential direction of the connecting member intersect with the first limiting face, and the support member is matched with the first limiting face in a limiting mode. The reflector adjusting mechanism is easy to adjust the reflector, and the reflector is not easy to rotate around the axis of the connecting piece.

Description

technical field [0001] The invention relates to the technical field of optical projection equipment, in particular to a mirror adjustment mechanism, a projection light machine and a projector. Background technique [0002] The core component of the micro projector is the projection light machine. The projection light machine is designed with the portability of the micro projector in mind, and it is often necessary to set a reflector inside the optical lighting system to change the direction of the light path. In practical applications, due to the high precision of the projector system, there are many links that affect the projection quality. Among them, the installation accuracy of the reflector is one of the key links, due to the correct realization of the function of the reflector itself, and the error of other links For compensation, the projector also includes a reflector adjustment device for adjusting the reflector. [0003] In the existing reflector adjustment devic...

AI Technical Summary

Problems solved by technology

In this way, although the adjustment range of each screw is relatively large, it is relatively difficult to adjust in practical applications

Furthermore, if the axis of the screws is perpendicular to the mirror and the screws are threaded to the support, the support has a tendency to rotate about the axis of the screw when one of the screws is adjusted, causing the support to deviate from the axis of the other screws, resulting in mirror tilt

[0004] In summary, it is very difficult to adjust the mirror adjustment device

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