Laser assembly, laser projection device and manufacturing method of laser assembly

Abstract

The invention provides a laser assembly, a laser projection device and a manufacturing method of the laser assembly. The laser assembly comprises a laser mounting base, a laser, a lens and a fixing piece. An accommodating groove is formed in the laser mounting base; the laser, the lens and the fixing piece are sequentially arranged in the accommodating groove from the bottom of the accommodating groove to the opening of the accommodating groove; the laser is fixedly connected with the accommodating groove; a bearing structure is arranged in the accommodating groove; and the bearing structure bears the light incident surface of the lens, so that a distance is formed between the light incident surface of the lens and the light emergent side of the laser; the side edge of the fixing piece abuts against the groove wall of the accommodating groove; and the fixing piece is arranged on the light-emitting face of the lens in a pressed mode so as to fix the lens in the accommodating groove together with the bearing structure. According to the laser assembly, the position accuracy of the lens relative to the laser is high.

Description

technical field [0001] The invention relates to the technical field of laser projection display, in particular to a laser component, a laser projection device and a manufacturing method of the laser component. Background technique [0002] With the continuous advancement of science and technology, more and more new projection devices such as laser projection devices have appeared in people's work and life. [0003] The laser assembly of the existing laser projection device comprises a laser base and a laser and a collimating lens fixed on the laser base, figure 1 is a schematic structural diagram of a laser component in the prior art, in figure 1 , the installation of the first laser 84 located in the lower left corner is taken as an example for illustration, specifically, as figure 1 As shown, the laser base 81 is provided with a plurality of mounting grooves 82, the first laser 84 can be welded in the mounting grooves 82 through a tin ring 86, and the collimating lens 87...

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned laser assembly, since the collimating lens is bonded on the upper surface of the laser base by glue, the upper surface of the laser is only a relatively flat surface, which lacks structures or components that can be effectively positioned. , there is no positioning element that can limit the specific position of the collimator lens on the upper surface of the laser base, so the installation position of the collimator lens relative to the laser is prone to deviation, resulting in poor installation accuracy. In addition, the glue is prone to chemical changes due to the high temperature of the laser. Deposits are produced on the surface of the lens, etc., which will pollute the lenses such as the lens, which will affect the light processing efficiency of the lens and reduce the brightness of the laser light.

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