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Laser light source and laser projector

A laser light source, blue laser technology, applied in optics, instruments, projection devices, etc., can solve problems such as reducing the viewing quality of projection images, and achieve the effect of reducing complexity

Active Publication Date: 2022-04-22
QINGDAO HISENSE LASER DISPLAY CO LTD
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  • Abstract
  • Description
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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

[0035] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, 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.

[0036] 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, belonging to the field of laser projection display. The laser light source includes: a blue laser, which emits blue laser light; a fluorescent wheel, the fluorescent wheel has multiple areas arranged along the circumferential direction, and the multiple areas of the fluorescent wheel include a fluorescent area and a transmission area, and the fluorescent area is used for blue Fluorescence is emitted under the excitation of a colored laser, and the transmission area is used to transmit the laser light; wherein, the light emitted from multiple areas of the fluorescent wheel has at least three colors, and the multiple areas of the fluorescent wheel include at least one pair of the same color of the emitted light. One area, each pair of first areas is separated from the second area, the colors of the light emitted by the first area and the second area are different; the rotation of the fluorescent wheel is used to provide the light of different colors required to output the three primary colors. The invention achieves a reduction in spoke light. The invention is used in the design of 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 fluorescent wheel, a color filter wheel and a light rod. The working process of the laser light source includes: the laser emits laser light, the laser light is irradiated on the fluorescent wheel, and the fluorescent powder on the fluorescent wheel is excited to output at least one color of fluorescent light, and the at least one color of fluorescent light is obtained by filtering the color filter wheel The light of at least one color, the laser light and the light of at least one color are un...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/20
CPCG03B21/204
Inventor 刘洪岩张勇王振
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
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