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Laser light source structure, projection optical system, and color temperature adjusting method of system

A laser light source and light source technology, applied in the field of optics, can solve problems such as high cost and complex structure of laser light source, and achieve the effects of easy operation, cost reduction and volume reduction

Active Publication Date: 2021-04-09
WUXI SEEMILE LASER DISPLAY TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Using two separate light sources and then realizing the technology of combining laser light and blue light into white light, usually when adjusting the color temperature of the light source, it is necessary to adjust the driving current of each light source, thus requiring each light source to have an independent drive and independent Advanced heat dissipation system leads to complex structure and high cost of laser light source

Method used

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  • Laser light source structure, projection optical system, and color temperature adjusting method of system
  • Laser light source structure, projection optical system, and color temperature adjusting method of system
  • Laser light source structure, projection optical system, and color temperature adjusting method of system

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Embodiment Construction

[0050] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limitations to the present invention. Based on the embodiments of the present invention, those skilled in the art do not make creative work All other embodiments obtained below all belong to the protection scope of the present invention.

[0051] In the description of the present invention, it should be understood that the terms "first" and "second" are only used to simplify the description, and cannot be understood as indicating or implying relative importance, or implicitly indicating the number of indicated technical features . Thus,...

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Abstract

The invention provides a laser light source structure, a projection optical system, and a color temperature adjusting method of the system. The laser light source structure comprises a light source shell, and an excitation light source, a light splitting and combining element, a wavelength conversion device, a blue light reversing device and an optical machine which are arranged in the light source shell; and at least one of the light splitting and combining element, the wavelength conversion device and the blue light reversing device is of a position-adjustable structure, so that the energy ratio of the excited light beam to the reversing exciting light beam is adjustable during light combination. The ratio of the exciting light beam guided to the wavelength conversion device to the exciting light beam guided to the blue light reversing device is adjustable, so that the ratio of the generated excited light beam to the reversing exciting light beam is adjustable, namely, the energy ratio of the excited light beam for light combination to the reversing exciting light beam is adjustable, therefore, the color temperature of the light source is adjustable.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to a laser light source structure, a projection optical system and a color temperature adjustment method thereof. Background technique [0002] 3LCD projection technology is popular in the projection industry because of its good color and high efficiency. With the development of laser technology, 3LCD projection light source has developed a variety of light source modes from the original light bulb light source, such as LED light source, laser fluorescent light source, pure laser light source, HLD light source and other light source technologies. Among them, laser fluorescent light source occupies a decisive market share due to its advantages in cost, brightness, color and other aspects. [0003] The 3LCD projection laser fluorescent light source generally adopts a fluorescent conversion method to convert blue laser light into yellow light, and then adds another blue laser light t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20G03B21/14G02B27/10G02B7/00
CPCG03B21/2033G03B21/204G03B21/14G03B21/2066G03B21/208G03B21/2073G02B27/10G02B7/00G03B21/206
Inventor 刘金根陈龙刘飞
Owner WUXI SEEMILE LASER DISPLAY TECH
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