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1. 发明授权

US06170953B2 Laser video projector for projecting image to a plurality of screens 失效
标题翻译：用于将图像投影到多个屏幕的激光视频投影仪
公开(公告)号：US06170953B2
公开(公告)日：2001-01-09
申请号：US09273744
申请日：1999-03-22
申请人： Jin-ho Lee , Young-mo Hwang
发明人： Jin-ho Lee , Young-mo Hwang
IPC分类号： G03B2114
CPC分类号： H04N9/3129
摘要： 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.
摘要翻译：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

US5495489A Second harmonic generating method and apparatus 失效
标题翻译：二次谐波发生方法及装置
公开(公告)号：US5495489A
公开(公告)日：1996-02-27
申请号：US366720
申请日：1994-12-30
申请人： Jin-ho Lee , Young-mo Hwang
发明人： Jin-ho Lee , Young-mo Hwang
IPC分类号： G02F1/37 , H01S3/094 , H01S3/109 , H01S3/04
CPC分类号： H01S3/109
摘要： 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.
摘要翻译：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。

3. 发明授权

US5671232A Second harmonic generation method and apparatus 失效
标题翻译：二次谐波生成方法和装置
公开(公告)号：US5671232A
公开(公告)日：1997-09-23
申请号：US520392
申请日：1995-08-29
申请人： Hang-woo Lee , Sang-hak Lee , Joseph Kilwhoan Chee , Young-mo Hwang , Yurij V. Tsvetkov , Alexander V. Semenenko , Ivan I. Kuratev
发明人： Hang-woo Lee , Sang-hak Lee , Joseph Kilwhoan Chee , Young-mo Hwang , Yurij V. Tsvetkov , Alexander V. Semenenko , Ivan I. Kuratev
IPC分类号： H01S3/10 , H01S3/109 , H01S3/136
CPC分类号： H01S3/109 , H01S3/136
摘要： A second harmonic generation apparatus provides a polarization element transmitting only light polarized in an extra-ordinary axis direction on the proceeding path of a second harmonic emitted from a resonator. The light polarized in the extra-ordinary axis direction is transmitted to a beam splitter, and a part of the polarized light is fed back to a feedback circuit, so that the temperature of a non-linear birefringent crystalline element inside resonator can be stably controlled and the output second harmonic can be stably produced.
摘要翻译：二次谐波发生装置提供了在谐振器发出的二次谐波的行进路径上仅发射在常规轴方向偏振的光的偏振元件。在超常轴方向偏振的光被传送到分束器，并且偏振光的一部分被反馈到反馈电路，使得可以稳定地控制谐振器内的非线性双折射结晶元件的温度可以稳定地产生输出二次谐波。

4. 发明授权

US5577059A Second harmonic generation method and apparatus 失效
标题翻译：二次谐波生成方法和装置
公开(公告)号：US5577059A
公开(公告)日：1996-11-19
申请号：US520391
申请日：1995-08-29
申请人： Hang-woo Lee , Sang-hak Lee , Joseph K. Chee , Young-mo Hwang , Yurij V. Tsvetkov , Alexander V. Semenenko , Ivan I. Kuratev
发明人： Hang-woo Lee , Sang-hak Lee , Joseph K. Chee , Young-mo Hwang , Yurij V. Tsvetkov , Alexander V. Semenenko , Ivan I. Kuratev
IPC分类号： H01S3/10 , H01S3/109 , H01S3/136
CPC分类号： H01S3/136 , H01S3/109
摘要： A second harmonic generation method and apparatus is capable of stabilizing an output. The apparatus provides a first beam splitter on the proceeding path of a second harmonic output, and other beam splitters on the proceeding path of the reflecting beam of the second harmonic and that of the transmitted beam. A second and third beam splitters are arranged on the proceeding paths of the second harmonic output and the beam separated from the second harmonic output to satisfy ##EQU1## where K is a constant, R.sub..parallel. is reflectivity with respect to p-polarization parallel to the incident surface of the first and second beam splitter, and R.sub..perp. is reflectivity with respect to s-polarization perpendicular to the incident surface of the first and second beam splitters.
摘要翻译：二次谐波生成方法和装置能够稳定输出。该装置在第二谐波输出的行进路径上提供第一分束器，并且在二次谐波的反射光束的行进路径上和发射光束的前进路径上提供其他分束器。第二和第三分束器布置在二次谐波输出的前进路径上，并且波束与二次谐波输出分离以满足其中K是常数的，R PARALLEL是平行于p的偏振的反射率第一和第二分束器的入射表面，R ORTHOGONAL是相对于垂直于第一和第二分束器的入射表面的s偏振的反射率。

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