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Laser light source and laser projector

A laser light source, blue laser technology, applied in optics, optical components, instruments, etc., can solve the problem of low phosphor excitation efficiency

Inactive Publication Date: 2020-07-07
QINGDAO HISENSE LASER DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a laser light source and a laser projector, which can solve the problem of low actual excitation efficiency of phosphors. The technical solution is as follows:

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

[0028] 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.

[0029] 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, a light gathering device and afluorescent device, wherein the light gathering device is positioned between the blue laser and the fluorescent device; the blue laser is used for emitting blue laser; the light condensing device isused for refracting the received blue laser to obtain non-collimated blue laser and transmitting the non-collimated blue laser to the fluorescent device; the fluorescent device is of a tubular structure, wherein at least part of the inner surface of the fluorescent device is a fluorescent area; the fluorescent area is used for emitting fluorescent light under excitation of blue laser; and the tubewall of the fluorescent device is used for reflecting the received blue laser and the fluorescent light. The fluorescent device is used for outputting light with different colors. The actual excitation efficiency of the fluorescent powder is improved. 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. [0003] The structure of the current laser light source usually includes at least: a laser, a beam shaping device, 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, and the laser beam is subjected to diameter reduction processing (that is, the diameter of the laser spot is compressed) by a beam shaping device to obtain a diameter-reduced laser, and the diameter-reduced laser is irradiated on the fluorescent wheel On the top, a part is transmitted from the fluoresce...

Claims

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Application Information

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IPC IPC(8): G03B21/20G02B26/00G02B27/14
CPCG02B26/007G02B27/141G03B21/204G02B26/00G02B27/14G03B21/20
Inventor 王强
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
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