Laser light source device and laser projection equipment

A laser light source and laser projection technology, applied in the field of projection display, can solve the problems of increasing the thickness of the lens, increasing the design cost and difficulty of the laser light source device, etc., and achieve the effect of saving the design cost.

Active Publication Date: 2020-08-11
QINGDAO HISENSE LASER DISPLAY CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The diameter of the lens and other components behind the corresponding laser light path needs to be increased by at least 50%, and the thickness of the lens will also increase, which will undoubtedly increase the design cost and difficulty of the laser light source device

Method used

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  • Laser light source device and laser projection equipment
  • Laser light source device and laser projection equipment
  • Laser light source device and laser projection equipment

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Embodiment Construction

[0049]In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0050] The laser light source device and the laser projection device provided by the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0051] In a first aspect of the embodiments of the present invention, a laser light source device is provided, such as figure 1 As shown, the laser light source device provided by the embodiment of the present invention at...

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Abstract

The invention discloses a laser light source device and laser projection equipment. The laser light source device comprises at least three groups of laser arrays, a light combining reflector and a polarization light combining mirror, wherein the polarization light combining mirror and the light combining reflector are used for combining laser beams. The laser light source device is advantaged in that the scale of a single laser array does not need to be enlarged any more, light energy of the light source is improved in a mode that laser beams of the laser arrays are combined through multiple sets of laser array incident light combining reflectors and the polarization light combining mirrors, the combined laser beams are similar to the laser beams of a single laser array in size, and the power of the laser beams is remarkably improved, therefore, purposes of increasing the laser emitting power and keeping the small laser beam size are achieved, elements after a light path of the laser array does not need to be changed for redesign, and design cost is saved.

Description

technical field [0001] The present invention relates to the field of projection display, in particular to a laser light source device and laser projection equipment. Background technique [0002] Lasers are used in the field of projection display due to their advantages of high brightness, strong monochromaticity, and wide color gamut. higher requirements. [0003] The laser light source usually adopts a laser array composed of multiple lasers. When higher laser light energy is required, the number of laser arrays needs to be increased. However, when the number of lasers in the laser array increases, if the design of the light combining optical path is unreasonable, it is easy to cause the size of the laser spot emitted by the final laser array to increase accordingly. Then, parameters such as the clear aperture of each element located behind the optical path of the laser array need to be redesigned, resulting in an increase in the size of the optical lens. For example, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20
CPCG03B21/2033G03B21/2013G03B21/2073G03B21/2066
Inventor 王强刘显荣
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
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