Temperature control and noise reduction system for high-power laser projector

Abstract

The invention discloses a temperature control and noise reduction system for a high-power laser projector, which comprises a laser head, a DMD chip and two sets of temperature control and noise reduction systems, and is characterized in that the temperature control and noise reduction system I is connected with the laser head, and the temperature control and noise reduction system II is connected with the DMD chip; each set of temperature control and noise reduction system internally comprises liquid spray cooling equipment, a thermoelectric refrigeration device, a heat dissipation circulation system, a temperature sensing control system and a sound sensing control system; the heat dissipation circulating system comprises a pipeline system, and a cooling section and a heat dissipation section which are connected by the pipeline system; and a plurality of groups of fans and fans are arranged in the heat dissipation section. The invention discloses a temperature control and noise reduction system for a high-power laser projector, which can accurately control the working temperature of a laser head and a DMD (Digital Micromirror Device) chip and reduce the noise generated when the high-power laser projector works.

Description

technical field [0001] The invention relates to the manufacturing field of high-power laser projectors, in particular to a temperature control and noise reduction system for high-power laser projectors. Background technique [0002] At present, there are two types of laser projection display technologies: First, using blue laser as the main light source, the light emitted by the blue laser is separated into three colors of red, green and blue through the color wheel, and then passes through the diffuser, light pipe and other structures. The three-color light is projected on the DMD chip to form the image seen by the human eye; 2. By controlling the three-color laser, it is made into a module, and the laser is expanded by the optical components and processing chips in the machine, and then transmitted to the The X prism integrates the three laser beams and transmits them to the screen from the projection objective to complete the entire display process. In many applications,...

AI Technical Summary

Problems solved by technology

Simple air-cooled heating, electric cooling or liquid-cooled heat dissipation modes are generally used in the market, but when the air-cooled is used at high power, the fan speed will increase, which will generate noise, which will affect the user's experience, so the noise must be controlled Decibels, reduce the impact on user experience

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