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Laser light source and laser projector

A laser light source, laser scattering technology, applied in optics, optical components, instruments, etc., can solve problems such as reducing the viewing quality of projection images, and achieve the effect of reducing the probability of rainbow phenomenon, reducing the loss of brightness, and reducing the loss.

Inactive Publication Date: 2020-06-26
QINGDAO HISENSE LASER DISPLAY CO LTD
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Problems solved by technology

This will also reduce the viewing quality of the projected picture

Method used

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  • Laser light source and laser projector
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  • Laser light source and laser projector

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Embodiment Construction

[0053] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention 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 present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0054] Please refer to figure 1 , which shows a schematic diagram of the implementation environment involved in some embodiments of the present invention. The implementation environment may include: a laser light source 10 , an optical machine 20 and a projection lens 30 , and the laser light source 10 , the optical machine 20 and the projection lens 30 are arranged in sequence along the beam transmission direction. Wherein, the laser...

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Abstract

The invention relates to a laser light source and a laser projector, and belongs to the field of laser projection display. The laser light source comprises a blue laser which emits blue laser; a colorwheel which comprises multiple areas arranged in the first circumferential direction, wherein the multiple areas arranged in the first circumferential direction comprise at least one pair of first areas with the same color of emitted light, a second area is arranged between each pair of first areas in a spaced mode, and the colors of the light emitted by the first areas and the colors of the light emitted by the second areas are different; at least one of the first region and the second region is a fluorescent region. The color wheel further comprises a plurality of areas arranged in the second circumferential direction, and the areas arranged in the second circumferential direction comprise light filtering areas arranged corresponding to the first areas and the second areas. The color wheel sequentially outputs red light, blue light and green light. The invention realizes the reduction of spoke light. The invention is used for designing the laser light source.

Description

technical field [0001] The invention relates to the field of laser projection display, in particular to a laser light source and a laser projector. Background technique [0002] Laser light source is a light source with high brightness, strong directionality, and monochromatic coherent light beam. Due to many advantages of laser light source, it has been gradually used in the field of projection display in recent years. Current laser light sources usually include at least: a laser, a color wheel, a color wheel and a light rod. The working process of the laser light source includes: the laser emits laser light, and the laser light is irradiated on the fluorescent wheel to excite the fluorescent powder on the fluorescent wheel to output at least one color of fluorescent light, and the at least one color of fluorescent light is filtered through the color filter wheel Light of at least one color is obtained, and the laser light and the light of at least one color are uniformly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20G02B26/00
CPCG03B21/204G03B21/208G02B26/008
Inventor 刘洪岩高迪李巍
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
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