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Laser projection device

A laser projection and laser technology, applied in the field of laser light source, can solve the problem of low light source efficiency, and achieve the effect of small light source volume, compact arrangement of components, and high light source brightness

Inactive Publication Date: 2020-09-18
QINGDAO HISENSE LASER DISPLAY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem of low light source efficiency in laser light sources, the present application provides a laser projection device, including: a laser projection device, characterized in that it includes: a laser light source, a uniform light component, a light valve element, and a lens;

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Embodiment Construction

[0023] In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0024] The technical solutions provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0025] An embodiment of the present invention provides a three-color laser light source, figure 2 It is one of the schematic diagrams of the structure of the three-color laser light source according to the embodiment of the present invention, such as figure 2 As shown, the three-color laser light sourc...

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Abstract

The invention provides a laser projection device. Three-color laser emitted by a laser light source is subjected to dodging through a dodging component and then projected to a light valve element; thelight valve element modulates the received light beams and then emits the modulated light beams to the lens; in the laser light source, a first green laser array, a second green laser array, a red laser array and a blue laser array are arranged in parallel; the first light combining part combines the first green laser and the second green laser and then reflects the combined light to the beam combining element; the second light combining part combines the blue laser and the red laser and then emits the combined light to the beam combining element; the beam combining element combines the lightbeams emitted by the first light combining part and the light beams emitted by the second light combining part and then emits the combined light beams to the light homogenizing part. The laser projection device can emit high-brightness three-color laser beams, and the compactness and miniaturization of the size of the light source are both considered.

Description

[0001] This application is based on the divisional application of Chinese invention application 201810218721.8 (2018-3-16), title of invention: a three-color laser light source and laser projection device. technical field [0002] The present application relates to the technical field of laser light sources, and in particular to a laser projection device. Background technique [0003] As a solid-state light source, laser light source has a series of advantages such as high brightness, high efficiency, long life, good color gamut, and environmental protection, and has become the choice of emerging projection light source. [0004] Among the light sources composed of laser light and fluorescent powder stimulated to produce fluorescence currently used in the industry, blue laser light is usually used as the laser light source and excitation light source of the laser projection system. In an implementation manner of the prior art, when the blue laser strikes the phosphor wheel, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20
CPCG03B21/2013G03B21/2033G03B21/2053G03B21/2066
Inventor 田有良李巍周子楠孙鹏
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
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