Projection device

Abstract

The invention provides a projection device. The projection equipment comprises a lens assembly, an optical assembly, a heat transfer assembly and a lens base, the lens assembly is fixed on the lens base; the lens assembly at least comprises two lens barrels; the optical assembly is provided with a metal piece shell; the heat transfer assembly is partially located between the lens base and the shell; and the heat transfer assembly is sleeved on the outer wall of one lens barrel, the heat transfer assembly comprises an annular heat transfer body, and the cross section of the heat transfer body is approximately L-shaped. The projection device is used for cooling the lens.

Description

[0001] This application is a divisional application based on Chinese invention application 201810632481.6 (2018-6-19), title of invention: projection equipment. technical field [0002] The invention relates to the field of projection display, in particular to a projection device. Background technique [0003] With the development of science and technology and the improvement of people's living standards, various projection equipment such as laser TVs and projectors have been more and more widely used because of their advantages of larger projected image size and better display effect. [0004] At present, projection equipment mainly includes components such as optical components and lenses. Among them, the optical component is also called the optical engine, which usually includes components such as vibrating mirrors, which are mainly used to emit light; the lens is usually fixed by the lens base, and includes multiple sets of lenses. Through the combination of lenses insid...

AI Technical Summary

Problems solved by technology

At this time, the heat transfer component that is fixedly connected to the lens barrel and the housing will make the lens barrel unable to move, resulting in the inability to focus smoothly

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