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公开(公告)号：US5666578A
公开(公告)日：1997-09-09
申请号：US691697
申请日：1996-08-02
CPC分类号： G03B19/12 , G03B17/20 , G03B17/24 , G03B7/09974 , G03B7/09976 , G03D15/005 , G03B2206/004 , G03B2217/244
摘要： A camera according to the present invention is so arranged that a half mirror is disposed in an optical path between a taking lens and a photographic film strip to be exposed so as to reflect a part of subject image incident thereinto. The thus reflected subject image is received by CCD, which converts it into electric image data. The image data is converted into binary codes, and the codes are written by a magnetic head in a magnetic layer provided on the back face of the photographic film strip. On the other hand, the image data received by the CCD is displayed for a photographer in a finder through a liquid crystal display at all times.
摘要翻译： 根据本发明的照相机被布置成使得半透镜被设置在拍摄镜头和要曝光的照相胶片条之间的光路中，以便反射入射到其中的被摄体图像的一部分。 这样反射的被摄体图像由CCD接收，其将其转换成电图像数据。 将图像数据转换为二进制码，并且将代码由设置在摄影胶片背面的磁性层中的磁头写入。 另一方面，通过液晶显示器一直在取景器中为摄影者显示由CCD接收到的图像数据。
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公开(公告)号：US5808795A
公开(公告)日：1998-09-15
申请号：US611555
申请日：1996-03-06
申请人： Hideaki Shimomura , Kiyoshi Numazaki , Yoshiro Oikawa , Naotaka Shimamura , Motoi Ueda , Takeshi Hasegawa
发明人： Hideaki Shimomura , Kiyoshi Numazaki , Yoshiro Oikawa , Naotaka Shimamura , Motoi Ueda , Takeshi Hasegawa
CPC分类号： H04N9/3105 , G02B27/283 , H04N9/3167
摘要： A projection type display apparatus includes a spatial light modulator, a polarizing beam splitter formed of members of a transparent material, and a projection optical system. The polarizing beam splitter includes a dielectric multilayer film, and a first transparent material member and a second transparent material member sandwiching the dielectric multilayer film. Each of the first and second transparent material members is made of a transparent material with a refractive index of at least 1.8 and with an absolute value of the photoelastic constant being no more than 1.5.times.10.sup.-8 cm.sup.2 /N for light of wavelengths 0.4 .mu.m to 0.7 .mu.m, incident to the polarizing beam splitter.
摘要翻译： 投影型显示装置包括空间光调制器，由透明材料的构件形成的偏振分束器和投影光学系统。 偏振分束器包括电介质多层膜，以及夹着电介质多层膜的第一透明材料构件和第二透明材料构件。 第一透明材料构件和第二透明材料构件中的每一个由折射率为至少1.8的透明材料制成，对于波长0.4μm的光，光弹性常数的绝对值不大于1.5×10 -8 cm 2 / N 到0.7μm，入射到偏振分束器。
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3.发明授权
公开(公告)号：US5949503A
公开(公告)日：1999-09-07
申请号：US668943
申请日：1996-06-24
申请人： Motoo Koyama , Hideaki Shimomura
发明人： Motoo Koyama , Hideaki Shimomura
IPC分类号： G02F1/1334 , G02F1/1335 , H04N5/74 , G02F1/136
CPC分类号： G02F1/133553 , H04N5/7441 , G02F1/1334 , G02F2201/305 , G02F2203/22 , G02F2203/34
摘要： Reflective spatial light modulators (RSLMs) and projection apparatus employing such RSLMs are disclosed. The RSLM comprises a reflective surface and a superposed light-modulation layer. The reflective surface is configured to have a reflective diffraction optical element or a microfaceted reflective array. Incident light impinging on the RSLM can pass through the light-modulation layer, reflect from the reflective surface, and return through the light-modulation layer to become modulated signal light capable of forming a viewable image if projected onto a screen or other surface. The reflective diffraction optical element or microfaceted reflective array on the reflective surface is operable to cause the signal light to propagate from the RSLM in a different direction than any ghost light reflected from the RSLM. Projection apparatus employing such an RSLM comprise an illumination optical system, a projection optical system that may or may not be coaxial with the illumination optical system, and a stop operable to pass signal light but not ghost light to a screen for viewing. The viewed image has enhanced contrast over the prior art.
摘要翻译： 公开了使用这种RSLM的反射空间光调制器（RSLM）和投影装置。 RSLM包括反射表面和叠加的光调制层。 反射表面被配置为具有反射衍射光学元件或微量反射阵列。 入射到RSLM上的入射光可以通过光调制层，从反射面反射，并通过光调制层返回成为能够在投影到屏幕或其它表面上时形成可视图像的调制信号光。 反射表面上的反射衍射光学元件或微量反射阵列可操作以使信号光从与RSLM反射的任何重影光不同的方向从RSLM传播。 使用这样的RSLM的投影装置包括照明光学系统，可以与照明光学系统共轴的投影光学系统，以及可操作以将信号光而不是重影光传递到用于观看的屏幕的停止。 所观看的图像与现有技术相比具有增强的对比度。
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公开(公告)号：US6067193A
公开(公告)日：2000-05-23
申请号：US172264
申请日：1998-10-14
IPC分类号： G02B27/28 , G02F1/1335 , G02F1/13357 , G02F1/13363 , G02B5/30 , G03B21/14
CPC分类号： G02F1/13362 , G02B27/283 , G02B27/285 , H04N9/3152 , G02F1/133528 , G02F2001/13355 , G02F2001/133638
摘要： A polarization device comprises: a light source; a first lens plate including a plurality of lenses in a planar configuration that divides light emitted from the light source into beams defined by apertures of the plurality of lenses; a second lens plate which is different from the first plate and includes a plurality of lenses in a planar configuration, the plurality of lenses of the first lens plate individually forming light spots at the plurality of lenses of the second lens plate; a polarization beam splitter array constituted of a plurality of polarization beam splitters provided continuously, that performs polarization splitting of light that has been emitted from the light spots of the plurality of lenses of the second lens plate and has entered therein to split the light into p-polarized light and s-polarized light, and emits the split light; and halfwave plates provided at an emission surface of the polarization beam splitter array that convert polarized light emitted from the polarization beam splitter array either from p-polarized light to s-polarized light or from s-polarized light to p-polarized light. And the halfwave plates are provided at the emission surface of the polarization beam splitter array, in different arrangements between a central area of the polarization beam splitter array and a peripheral area excluding the central area.
摘要翻译： 偏振装置包括：光源; 第一透镜板，其包括平面构造的多个透镜，其将从光源发射的光分成由多个透镜的孔限定的光束; 第二透镜板，其与第一板不同，并且包括平面构造的多个透镜，第一透镜板的多个透镜在第二透镜板的多个透镜处分别形成光点; 由连续设置的多个偏振光束分离器构成的偏振分束器阵列，其进行从第二透镜板的多个透镜的光点发射并进入其中的光的偏振分束，将光分为p 偏振光和s偏振光，并发射分光; 以及设置在偏振分束器阵列的发射表面处的半波片，其将偏振分束器阵列发射的偏振光从p偏振光或从s偏振光或从s偏振光转换为p偏振光。 并且半波片设置在偏振分束器阵列的发射表面处，在偏振分束器阵列的中心区域和不包括中心区域的周边区域之间的不同布置中。
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