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    • 1. 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。
    • 2. 发明授权
    • Second harmonic generating method and apparatus
    • 二次谐波发生方法及装置
    • US5495489A
    • 1996-02-27
    • US366720
    • 1994-12-30
    • Jin-ho LeeYoung-mo Hwang
    • Jin-ho LeeYoung-mo Hwang
    • G02F1/37H01S3/094H01S3/109H01S3/04
    • H01S3/109
    • A second harmonic generator for generating a stable harmonic includes an input mirror and an output mirror for providing a resonating section which is optically confined, second harmonic generation elements for generating a second harmonic using an externally applied pumping energy, and a casing for supporting the optical components. A temperature regulating device for mode selection is provided under the nonlinear birefringent crystalline device. A temperature correction device is provided in the peripheral surface of the casing for correcting the temperature of the casing. A controller senses the temperature of the casing and maintains the sensed temperature within a preset temperature range. Such a structure can generate a stable harmonic output even with large changes in ambient temperature. Particularly, the desired light output can be obtained within a short time.
    • 用于产生稳定谐波的二次谐波发生器包括输入反射镜和用于提供光学限制的谐振部分的输出反射镜,用于使用外部施加的泵浦能量产生二次谐波的二次谐波发生元件和用于支撑光学器件的壳体 组件。 在非线性双折射晶体装置下设置用于模式选择的温度调节装置。 温度校正装置设置在壳体的外周表面中,用于校正壳体的温度。 控制器感测壳体的温度并将检测到的温度保持在预设的温度范围内。 即使环境温度变化很大,这种结构也能产生稳定的谐波输出。 特别地,可以在短时间内获得期望的光输出。