Laser projector light source synthesis mechanism capable of changing color temperature

Abstract

The invention discloses a laser projector light source synthesis mechanism capable of changing color temperature in the technical field of laser projectors, and the mechanism comprises: a laser diode, which is a blue laser light source; a condensing lens, which is disposed with a focusing surface directly facing the light emitting path of the laser diode; a light diffusing sheet, which is a lens for diffusing light and is blocked on a light path of the laser diode penetrating through the condensing lens, wherein one side of the light diffusing sheet facing the light source is a light-transmitting surface, and one side of the light diffusing sheet backlight is a light-reflecting surface, so that the blue light conversion efficiency of the light source of the existing laser projector can be improved, and the proportion of blue light can be easily adjusted to realize the setting of different color temperatures; therefore, the required color temperature of the light source of the laser projector is realized, the long-reliability effect of the color temperature of the light source is maintained, blue light transmission and partial blue light reflection are realized on the same reflector, the light quantity proportion of blue light can be adjusted, and the long-service-life super-reliability light source of the laser projector, which is easy to change the color temperature, can be created.

Description

technical field [0001] The invention relates to the technical field of laser projectors, in particular to a laser projector light source synthesis mechanism capable of changing color temperature. Background technique [0002] In today's pursuit of high efficiency and fast-paced modern office, projectors can be seen everywhere as new office equipment users. The projector can not only be used in temporary meetings, technical lectures, network centers, command and monitoring centers, but also can be connected with computers, workstations, etc., or connected with video recorders, TV sets, DVD players, and physical exhibition stands, etc. It can be said that it is a kind of Large-screen imaging equipment that is widely used; the main technologies of projectors include CRT (cathode ray tube) and LCD (liquid crystal display). The 3LCD method is to decompose the light emitted by the bulb into R (red), G (green), and B (blue) Light of three colors (the three primary colors of light)...

AI Technical Summary

Problems solved by technology

[0003] However, after the current projectors are produced, the size and power are fixed, and the maximum intensity and color temperature are fixed. If you want to adjust the color temperature, you can only change the power of the light-emitting diodes. However, such use is not only inaccurate, but also easy to affect projector life

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