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A light source control system and control method

A light source control and light source technology, applied in optics, lasers, laser components, etc., can solve problems affecting projection quality, unstable output brightness, etc., and achieve the effect of ensuring stability

Active Publication Date: 2021-04-30
SHENZHEN INTELA LASER TECH CO LTD
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  • Description
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a light source control system and control method to solve the problem that the output brightness of the existing laser is unstable and affects the projection quality when it is affected by the environment or the luminescent material is aging

Method used

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  • A light source control system and control method
  • A light source control system and control method

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Embodiment

[0036] Such as figure 1 As shown, a light source control system and control method disclosed in the present invention include a laser module, a temperature sensor, a light sensor, a processor, a drive board, and a temperature control module;

[0037] The laser module is a laser used for emitting laser light in a projection device;

[0038] The temperature sensor is used to detect the temperature signal of the laser in real time;

[0039] The optical sensor is used to detect the brightness values ​​of red, green and blue light in the optical path of the laser module;

[0040] The processor receives the temperature signal from the temperature sensor and the three-color light brightness value signal of the light sensor, and compares them with the preset temperature value and the initial brightness ratio respectively, and finally outputs the temperature control signal to the temperature control module and the brightness control signal to the The drive board, the initial brightne...

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Abstract

The invention discloses a light source control system and control method, including a laser module, a temperature sensor, a light sensor, a processor, a drive board, and a temperature control module; the processor receives a temperature signal from a temperature sensor and three-color light from the light sensor The brightness value signal is compared with the preset temperature value and the initial brightness value respectively, and finally the temperature control signal is output to the temperature control module, and the brightness control signal is output to the driver board; the driver board receives the brightness control signal from the processor, Adjust the current of the laser light source of the red, green and blue three-color light, and finally make the brightness ratio of the three-color light reach the initial brightness ratio. The invention realizes the adjustment and control of the driving current and the output brightness of the semiconductor laser, and also realizes the stable control of the temperature. The two cooperate with each other to complete the control work of the laser, so that the laser is in a normal working state.

Description

technical field [0001] The present invention relates to the technical field of light source control, in particular to a light source control system and control method. Background technique [0002] Semiconductor lasers are a type of lasers that mature earlier and progress faster. Because of their low cost, easy mass production, small size, and long life, they have been widely used in display, communication, manufacturing, and other fields. Today, the range of applications for semiconductor lasers covers the entire field of optoelectronics. In the laser projector, the laser is used to emit laser light to display the display content on the projection screen. After a long time of use, due to the influence of environmental dust or the aging of the luminescent materials of the three colors of RGB, a single color attenuation is bound to occur. Serious results will lead to changes in the output power of the three-color light. When the RGB three-color light is mixed to produce whit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/20H01S5/042H01S5/00
CPCG03B21/2033G03B21/2053H01S5/0014H01S5/042
Inventor 陈飞
Owner SHENZHEN INTELA LASER TECH CO LTD
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