Laser light source device and projection equipment

Abstract

The invention discloses a laser light source device, and belongs to the field of laser display. The laser light source device comprises a laser array, a light conduction assembly and a fly's-eye lens, the fly's-eye lens comprises a plurality of rectangular lenses arranged in an array, the fast axis direction of the laser is parallel to the short sides of the rectangular lenses in the fly's-eye lens, and the slow axis direction of the laser is parallel to the long sides of the rectangular lenses in the fly's-eye lens. The sine value of the divergence angle of the fast axis of the laser is larger than the sine value of the aperture angle of the long side of the rectangular lens, and the sine value of the divergence angle of the slow axis of the laser is larger than the sine value of the aperture angle of the short side of the rectangular lens. Parameters of the laser and the fly's-eye lens are associated, the dodging function can be conveniently achieved through the fly's-eye lens, compared with a light guide pipe, the fly's-eye lens is small in size in the light path direction, and the size of the laser light source device is also small. The problem that the size of the laser light source device is too large in the prior art is solved, and the effect of reducing the size of the laser light source device is achieved.

Description

technical field [0001] The present application relates to the field of laser display, in particular to a laser light source device and projection equipment. Background technique [0002] With the continuous pursuit of picture color, laser projection with the advantages of large imaging picture, high spectral brightness and wide color gamut has been developed. Among them, three-color semiconductor lasers have been used in laser projection technology as laser light sources. [0003] At present, a laser light source device includes a laser array, a light-conducting component and a light-pipe which are arranged in sequence along an optical path. The laser array emits green, blue and red light. The three-color light is combined by the light-conducting component, and then homogenized through the light guide. The homogenized laser is emitted from one end of the light guide. [0004] However, in the above-mentioned laser light source device, the path of the laser light path is rel...

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Problems solved by technology

[0004] However, the path of the laser light path in the above-mentioned laser light source device is relatively long, resulting in a large volume of the laser light source device.

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