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 includes a laser mounting base, a laser, a lens and a fixing piece. The laser mounting base is provided with a accommodating groove. The laser, the lens and the fixing piece are sequentially arranged in the accommodating groove from the groove bottom of the accommodating groove to the notch direction of the accommodating groove. Inside the groove, the laser is fixedly connected to the accommodating groove, and the accommodating groove is provided with a bearing structure, and the bearing structure bears the light incident surface of the lens, so that there is a distance between the light incident surface of the lens and the light emitting side of the laser; the fixing piece The side edge of the lens is in contact with the groove wall of the accommodating groove, and the fixing piece is pressed on the light-emitting surface of the lens to fix the lens in the accommodating groove together with the bearing structure. In the laser assembly of the present invention, the positional accuracy of the lens relative to the laser is high.

Description

technical field [0001] The present 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 appear in people's work and life. [0003] The laser component of the existing laser projection device includes a laser base, a laser and a collimating lens fixed on the laser base, figure 1 is a schematic diagram of the structure of the laser assembly 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 description. figure 1 As shown, the laser base 81 is provided with a plurality of installation grooves 82, the first laser 84 can be welded in the installation grooves 82 by the tin ring 86, and the collimating lens 87 can be ...

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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