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Laser display system

A technology of laser display and laser light source, applied in the field of laser, can solve the problems of low luminous flux and efficiency of red light, and achieve the effect of solving the problem of light color cast, improving stability and reducing production cost

Active Publication Date: 2016-07-20
SICHUAN CHANGHONG ELECTRIC CO LTD
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Problems solved by technology

However, the red luminous flux and efficiency obtained by this method are relatively low.

Method used

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Embodiment Construction

[0021] Embodiment By simultaneously coating yellow, green, and red three-color fluorescent powder layer color segments on the fluorescent wheel, and adjusting the driving current of the blue laser light source module to irradiate the fluorescent powder layer of different colors on the fluorescent color wheel in real time, the problem of laser light is solved. It shows the problem of light color cast after the product is used.

[0022] see figure 1 , this embodiment includes: a current drive device 101, a laser light source module 102, a fluorescent wheel 105, a light combining mirror 103, an optical lens 106 assembled in front of the fluorescent wheel 105, and at least one optical alignment component 104. Wherein, the fluorescent wheel 105 is used as the color conversion device of the system, including a substrate and a phosphor layer coated on the substrate in a ring; the optical lens 106 is used to converge the light generated by the excited phosphor layer; The optical coll...

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Abstract

The invention relates to the technical field of laser lights, and provides a laser display system. The red light output efficiency of the complete machine and the stability of changing along with time are improved. The laser display system comprises a laser light source module, a fluorescent wheel, a light-combining mirror, an optical lens and a current drive device, wherein the optical lens is located at the rear end of the light-combining mirror; the fluorescent wheel comprises a substrate and a fluorescent powder layer; the fluorescent powder layer coats different color segments of the substrate in a ring; the current drive circuit is connected with the laser light source module; and when the laser lights emitted from the laser light source module irradiate fluorescent powder of different color segments on the fluorescent wheel, the current drive device outputs current values corresponding to the fluorescent powder of various color segments to the laser light source module. The laser display system is suitable for a laser display device.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to a laser display system. Background technique [0002] The laser display device uses a fluorescent wheel combined with a semiconductor laser light source as a display light source. Under the irradiation of a high-power laser light source, the output blue laser light is focused on the phosphor powder of different colors of the fluorescent wheel through a lens to generate red, green, and yellow three-color light. As the laser light power increases, the light conversion efficiency of the powder layer on the fluorescent wheel also increases. At present, the phosphor wheels of laser display products are formed by forming phosphors of different colors on different areas on the wheel-shaped substrate, and using the same power to irradiate red, yellow, green, and blue phosphors respectively to produce red, yellow, and green in turn. , blue four-color light, and then through the light synt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20G02B27/30
CPCG02B27/30G03B21/204
Inventor 文玮何龙姜银磊陈志洁
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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