Replaceable superposed light path projection system

Abstract

The invention relates to a replaceable superposed light path projection system. The system comprises a driving assembly; the system further comprises a detachable projection assembly, a coherent light path, an incoherent light path and a diffraction assembly. After being refracted by the diffraction assembly, coherent light of the coherent light path is superposed with incoherent light, transmitted by the projection assembly, of the incoherent light path, so that a moving starry sky effect containing an image is generated; the projection assembly and the diffraction assembly are both mechanically connected with the driving assembly. Through the arrangement of the detachable projection assembly, corresponding projection can be replaced according to the projection effect customized by a user, so that various different visual effects can be projected. The non-coherent light and the coherent light are overlapped, mechanical driving of the driving assembly is combined, the mobile starry sky with user customized image content can be generated on the premise that aging of a projection sheet is not affected, the picture is clear, the brightness is high, the use scene is wide, and the diversified requirements of products are met.

Description

technical field [0001] The invention relates to the technical field of medical devices, and more specifically, to a replaceable superimposed optical path projection system. Background technique [0002] A projector, also known as a projector, is widely used in places such as homes, offices, and schools. It is a device that can project images or videos onto a screen. According to different working methods, projectors can be divided into CRT projectors, LCD projectors, DLP projectors, LCOS projectors and other types. [0003] With the continuous development of projector technology, clear pictures, rich projection content, and wide use scenarios have become the main indicators of projectors. Although some projectors are equipped with replaceable slides inside to meet the index of changing different projection contents, due to the aging and fading of slides, it is usually necessary to use weaker power lights to penetrate the slides, and the projection effect is only It can be ...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the existing projectors cannot realize the indicators of clear picture, rich projection content, and wide application scenarios at the same time. Aiming at the above-mentioned defects of the prior art, a replaceable superimposed optical path projection system is provided

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