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Double-color laser light source and laser projector

A laser projector and laser light source technology, applied in the field of projection display, can solve the problems of red laser speckle and serious problems, and achieve the effect of improving optical quality and reducing speckle effect.

Active Publication Date: 2019-03-01
QINGDAO HISENSE LASER DISPLAY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the serious problem of red laser speckle phenomenon in the related art, an embodiment of the present invention provides a two-color laser light source and a laser projector

Method used

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  • Double-color laser light source and laser projector
  • Double-color laser light source and laser projector
  • Double-color laser light source and laser projector

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] 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.

[0020] Exemplarily, the laser light source can be applied to a laser projector. Laser projectors emit light of at least one color to display images. Primary color refers to the "basic color" that cannot be obtained by mixing and deploying other colors. Other new colors can be produced by mixing base colors in different proportions. Laser projectors usually generate primary color light to display graphics. A general laser projector produces three primary colors, that is, red, green, ...

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PUM

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Abstract

The invention discloses a double-color laser light source and a laser projector, and belongs to the field of projection display. The double-color laser light source comprises a first blue laser, a second blue laser, a first red laser, a second red laser, a fluorescent wheel and a light combining component; the fluorescent wheel is provided with a green fluorescent area; the light combining component is used for transmitting second blue laser emitted by the second blue laser and green fluorescence emitted by the fluorescent wheel to a light collecting component, wherein the green fluorescence is generated by irradiating the green fluorescent area through the first blue laser emitted by the first blue laser; and the light combining component is further used for transmitting the first red laser emitted by the first red laser and the second red laser emitted by the second red laser to the light collecting component, wherein the polarization direction of the first red laser is perpendicularto the polarization direction of the second red laser. The problem that the speckle phenomenon of the red laser is relatively serious is solved. The invention is used for designing the double-color laser light source.

Description

technical field [0001] The invention relates to the field of projection display, in particular to a two-color 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. Compared with the traditional monochromatic laser light source, the two-color laser light source can improve the color purity, color brightness and color gamut of the light source, and better meet the color requirements of laser projection. [0003] related technologies, such as figure 1 As shown, the two-color laser light source generally includes a blue laser 101 , a red laser 102 , a fluorescent wheel 103 , a beam shaping device 104 , a light combining component 105 and a light collecting component 106 . The light output principle of the two-color la...

Claims

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Application Information

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IPC IPC(8): G03B21/20
CPCG03B21/2013G03B21/204G03B21/206G03B21/2073
Inventor 田有良
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
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