Trichromatic laser optical fiber transmission projector
An optical fiber transmission and projector technology, which is applied in optics, optical components, instruments, etc., can solve the problems of insufficient reproduction degree, wide spectrum of three primary colors, unclear picture, etc., and achieve vivid color reproduction degree, wide color gamut and picture quality Speckle-free effect
Pending Publication Date: 2018-03-30
上海激亮光电科技有限公司
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a three-primary-color laser optical fiber transmission projector, which solves the problem of unclear and speckle images caused by the wide spectrum, narrow color gamut and unrealistic reduction of the three-primary colors produced by fluorescence in the prior art. The problem
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[0019] Below in conjunction with accompanying drawing, structure and working process of the present invention will be further described.
[0020] A three-color laser optical fiber transmission projector, including a laser pulse width modulation device, a red laser, a green laser, a blue laser, a transmission fiber, a fiber combiner, an atomized crystal oscillator, a focusing lens, and a light guide rod. The laser pulse width modulation device is respectively connected with the red laser, green laser, and blue laser to adjust the light emission timing of the red laser, green laser, and blue laser; the output ends of the red laser, green laser, and blue laser are respectively Connect a transmission fiber; the laser output from the three transmission fibers is combined by the fiber beam combiner, then passes through the collimator lens, the atomized crystal oscillator, and the focusing lens, then enters the light guide rod, and then outputs after passing through the light guide ro...
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The invention discloses a trichromatic laser optical fiber transmission projector. The projector comprises a laser pulse width modulation apparatus, a red light laser, a green light laser, a blue light laser, a transmission optical fiber, an optical fiber beam combiner, an atomized crystal oscillator sheet, a focusing lens and a light guide rod. The laser pulse width modulation apparatus is used for adjusting a light emitting sequence of the red light laser, the green light laser and the blue light laser. Lasers output by the red light laser, the green light laser and the blue light laser passthrough the transmission optical fiber and then enter into the optical fiber beam combiner so as to carry out beam combining. And the lasers successively pass through a collimating lens, the atomizedcrystal oscillator sheet and the focusing lens, then enter into the light guide rod, and then output. Compared with a trichromatic frame generated by a traditional fluorescence mode, a frame generated through a trichromatic laser in the invention has a narrower spectrum, a wider color gamut and a more lifelike color reduction degree. When the lasers are propagated in an optical fiber, brightnessattenuation is avoided. And after the trichromatic laser carries out dual dissipation spot of the atomized crystal oscillator sheet, the frame is clear and there is no speckle phenomenon.
Description
technical field [0001] The invention belongs to the field of laser projectors, and in particular relates to a three-primary-color laser optical fiber transmission projector. Background technique [0002] According to different light sources, projectors are mainly divided into three types: bulb, LED and laser. Among them, laser projectors are the most advanced projection technology at present, and laser projectors with fluorescent wheels are the most cost-effective models. The traditional reflective fluorescent wheel method makes the blue light pass through the fluorescent wheel, and the reflective fluorescent emits yellow-green light, and then the yellow-green light and blue light are collimated and combined by lenses. [0003] The three primary colors produced by the traditional fluorescent method have a wide spectrum and a narrow color gamut, and the color reproduction is not realistic enough, and the attenuation during transmission is too much, the picture definition is l...
Claims
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Login to View More IPC IPC(8): G03B21/20G02B27/48
CPCG02B27/48G03B21/2033G03B21/208
Inventor 喻斌
Owner 上海激亮光电科技有限公司