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    • 46. 发明授权
    • Laser video projector for projecting image to a plurality of screens
    • 用于将图像投影到多个屏幕的激光视频投影仪
    • US06170953B2
    • 2001-01-09
    • US09273744
    • 1999-03-22
    • Jin-ho LeeYoung-mo Hwang
    • Jin-ho LeeYoung-mo Hwang
    • G03B2114
    • H04N9/3129
    • A laser video projector for projecting an image to a plurality of screens is provided. It is possible to display an identical image to a plurality of screens by modulating light from the light source by an acousto-optic modulator (AOM) according to a video signal and projecting video information to a plurality of screens using a scanner. The laser video projector includes a light source for outputting a beam of white light, a light separator for separating the beam of the white light into beams of monochromatic lights having first, second, and third wavelengths, a light modulator for modulating the beams of the monochromatic lights according to a chrominance signal, a light combiner for combining the monochromatic lights modulated by the light modulator into a beam, a light scanner for scanning the combined beam of the modulated monochromatic lights, thus forming an image, a multi-screen projecting optical system for changing the light path so that the image formed by the light scanner is displayed on multiple screens, and a plurality of screens corresponding to the plurality of images.
    • 提供了一种用于将图像投影到多个屏幕的激光视频投影仪。 可以通过根据视频信号通过声光调制器(AOM)调制来自光源的光,并使用扫描仪将视频信息投影到多个屏幕,来将多个屏幕显示相同的图像。 激光视频投影仪包括用于输出白光束的光源,用于将白光束分离成具有第一,第二和第三波长的单色光束的光分离器,用于调制光束的光调制器 根据色度信号的单色光,用于将由光调制器调制的单色光组合成光束的光组合器,用于扫描调制单色光的组合光束的光扫描器,从而形成图像;多屏投影光学 用于改变光路的系统,使得由光扫描器形成的图像显示在多个屏幕上,以及多个屏幕对应于多个图像。
    • 47. 发明授权
    • Second harmonic generator
    • 二次谐波发生器
    • US5712723A
    • 1998-01-27
    • US592450
    • 1996-01-26
    • Jin-ho Lee
    • Jin-ho Lee
    • G02F1/37H01S3/00H01S3/02H01S3/041H01S3/0941H01S3/109
    • H01S3/109H01S3/0014H01S3/025H01S3/0401H01S3/0405H01S3/042H01S3/09415H01S5/02469
    • A second harmonic generator includes a laser diode mount, a laser diode on the mount for producing pumping light, a resonator for generating second harmonic light from the pumping light output from the laser diode, a lock connecting the resonator and the laser diode mount, a thermal controller including a thermoelectric cooling device for controlling the temperature of the resonator, a housing housing the resonator and coupled to the laser diode mount, a beam splitter for reflecting part of the second harmonic light emitted from the resonator, and a photodetector for detecting light reflected from the beam splitter. The thermoelectric cooling device is interposed between the housing and resonator so that the resonator and the housing are thermally connected. The second harmonic generator separates a thermally unrelated element from a thermal control path to reduce the heat control burden. Since the path of heat flow is only from the resonator to the housing, temperature control of the resonator is accomplished rapidly and precisely.
    • 二次谐波发生器包括激光二极管安装件,用于产生泵浦光的安装座上的激光二极管,用于从激光二极管输出的泵浦光产生二次谐波的谐振器,连接谐振器和激光二极管安装座的锁, 热控制器,包括用于控制谐振器的温度的热电冷却装置,容纳谐振器并耦合到激光二极管安装座的壳体,用于反射从谐振器发射的二次谐波光的一部分的分束器和用于检测光的光电检测器 从分束器反射。 热电冷却装置插入在壳体和谐振器之间,使得谐振器和壳体被热连接。 二次谐波发生器将热不相关元件与热控制路径分离,以减少热控负担。 由于热流的路径仅从谐振器到壳体,所以谐振器的温度控制被快速且精确地实现。