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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, achieve the effects of reducing rainbow phenomena, improving viewing quality, and reducing complexity

Active Publication Date: 2020-06-26
QINGDAO HISENSE LASER DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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
  • Laser light source and laser projector
  • 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, and belongs to the field of laser projection display. The laser light source comprises a blue laser which emits blue laser; a fluorescent wheel which is provided with a plurality of regions arranged in the circumferential direction, wherein the plurality of regions of the fluorescent wheel comprise fluorescent regions and transmission regions, the fluorescent regions are used for emitting fluorescence under the excitation of blue laser, and the transmission regions are used for transmitting the laser; wherein light emitted from a plurality of regions of the fluorescent wheel has at least three colors, the plurality of regions of the fluorescent wheel comprise at least one pair of first regions with the same color as the emitted light, a second region is spaced between each pair of first regions, and the colors of the light emitted from the first regions are different from those of the light emitted from the second regions. The fluorescent wheel rotates to provide different colors of light required for outputting three primary colors. 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 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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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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