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公开(公告)号：US06609796B2
公开(公告)日：2003-08-26
申请号：US10042189
申请日：2002-01-11
IPC分类号： G03B2100
CPC分类号： G02B27/149 , G02B27/1026 , G02B27/1073 , G02B27/145 , H04N5/7416 , H04N9/317
摘要： An analyzing-synthesizing optical system has the structure in which for each of the three primary colors of R, G, and B, there are provided a light valve for modulating incident light and a polarization beam splitter for guiding specific polarized light to this light valve and extracting only modulated light coming from the light valve to output it, wherein these light valves and polarization beam splitters are fixed as integrated with a synthesizing optical system comprising a cross dichroic prism and wherein optical path lengths of optical paths of the respective colors are adjusted to be almost equal to each other. A projection image display apparatus comprises the analyzing-synthesizing optical unit.
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公开(公告)号：US06345895B1
公开(公告)日：2002-02-12
申请号：US09453397
申请日：1999-12-03
IPC分类号： G03B2100
CPC分类号： G02B27/149 , G02B27/1026 , G02B27/1073 , G02B27/145 , H04N5/7416 , H04N9/317
摘要： An analyzing-synthesizing optical system has the structure in which for each of the three primary colors of R, G, and B, there are provided a light valve for modulating incident light and a polarization beam splitter for guiding specific polarized light to this light valve and extracting only modulated light coming from the light valve to output it, wherein these light valves and polarization beam splitters are fixed as integrated with a synthesizing optical system comprising a cross dichroic prism and wherein optical path lengths of optical paths of the respective colors are adjusted to be almost equal to each other. A projection image display apparatus comprises the analyzing-synthesizing optical unit.
摘要翻译： 分析合成光学系统具有这样的结构，其中，对于R，G和B的三原色中的每一种，设置有用于调制入射光的光阀和用于将特定偏振光引导到该光阀的偏振分束器 并且仅提取来自光阀的调制光以输出它们，其中这些光阀和偏振分束器被固定为与包括十字分色棱镜的合成光学系统集成，并且其中调节各种颜色的光路的光路长度 几乎相等。 投影图像显示装置包括分析合成光学单元。
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公开(公告)号：US6010221A
公开(公告)日：2000-01-04
申请号：US80932
申请日：1998-05-19
CPC分类号： G02B27/149 , G02B27/1026 , G02B27/1073 , G02B27/145 , H04N9/317 , H04N5/7416
摘要： An analyzing-synthesizing optical system has the structure in which for each of the three primary colors of R, G, and B, there are provided a light valve for modulating incident light and a polarization beam splitter for guiding specific polarized light to this light valve and extracting only modulated light coming from the light valve to output it, wherein these light valves and polarization beam splitters are fixed as integrated with a synthesizing optical system comprising a cross dichroic prism and wherein optical path lengths of optical paths of the respective colors are adjusted to be almost equal to each other. A projection image display apparatus comprises the analyzing-synthesizing optical unit.
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4.发明授权Cross dichroic prism, method of making the same, and full-color projector using the same 有权十字分光棱镜，制作方法和使用其的全彩投影仪公开(公告)号：US06407868B1
公开(公告)日：2002-06-18
申请号：US09604667
申请日：2000-06-27
申请人： Kazufumi Ishibashi , Tetsuo Hattori , Kiyoshi Numazaki , Yasuhiro Iwaguchi , Shuichi Sugai , Tadaaki Nakamura , Masaaki Kusano
发明人： Kazufumi Ishibashi , Tetsuo Hattori , Kiyoshi Numazaki , Yasuhiro Iwaguchi , Shuichi Sugai , Tadaaki Nakamura , Masaaki Kusano
IPC分类号： G02B2714
CPC分类号： G02B27/149 , G02B5/04 , G02B27/1073 , G02B27/145 , G02B27/62
摘要： A cross dichroic prism comprises four triangular prisms having isosceles right triangular cross sections identical in shape, opposing side faces thereof being bonded and secured together with rectangular portions thereof facing each other; and a dichroic film having an X-shaped cross section formed between the bonding faces of the triangular prisms; wherein, of the four triangular prisms, a given prism and at least one of the prisms adjacent thereto have a refractive index difference therebetween of 0.00005 or less, and the remaining two prisms opposed thereto have a refractive index difference therebetween of 0.00005 or less.
摘要翻译： 十字分色棱镜包括具有相同形状的具有等腰直角三角形横截面的四个三角棱镜，其相对侧面与彼此面对的矩形部分结合并固定在一起; 以及在三角棱镜的接合面之间形成有X形截面的二向色膜; 其中，在四个三角棱镜中，给定的棱镜和与其相邻的棱镜中的至少一个之间的折射率差为0.00005以下，与其相对的其余两个棱镜之间的折射率差为0.00005以下。
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公开(公告)号：US6101041A
公开(公告)日：2000-08-08
申请号：US145468
申请日：1998-09-02
申请人： Kazufumi Ishibashi , Tetsuo Hattori , Kiyoshi Numazaki , Yasuhiro Iwaguchi , Shuichi Sugai , Tadaaki Nakamura , Masaaki Kusano
发明人： Kazufumi Ishibashi , Tetsuo Hattori , Kiyoshi Numazaki , Yasuhiro Iwaguchi , Shuichi Sugai , Tadaaki Nakamura , Masaaki Kusano
CPC分类号： G02B27/149 , G02B27/1073 , G02B27/145 , G02B27/62 , G02B5/04
摘要： A cross dichroic prism comprises four triangular prisms having isosceles right triangular cross sections identical in shape, opposing side faces thereof being bonded and secured together with rectangular portions thereof facing each other; and a dichroic film having an X-shaped cross section formed between the bonding faces of the triangular prisms; wherein, of the four triangular prisms, a given prism and at least one of the prisms adjacent thereto have a refractive index difference therebetween of 0.00005 or less, and the remaining two prisms opposed thereto have a refractive index difference therebetween of 0.00005 or less.
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公开(公告)号：US6141151A
公开(公告)日：2000-10-31
申请号：US363230
申请日：1999-07-21
CPC分类号： H04N9/3105 , H04N9/3167 , H04N5/7441
摘要： Apparatus are disclosed that provide a high-luminance projected image with no color shading or uneven contrast. Light from a light source undergoes color separation by passing through a color-separation optical system (e.g., a cross-dichroic mirror or cross-dichroic prism). The light from the light source can also be split into first and second polarized lights by passage through, e.g., a first polarized-light beamsplitter (PBS). Each color-separated light is modulated by a respective color-signal light valve and undergoes color combining by, e.g., a cross-dichroic prism. The second polarized light, if formed, is modulated by a luminance-signal light valve, undergoes color combining and polarized-light combining by, e.g., a second PBS, and is projected by a projection lens (that comprises an aperture stop). The PBSs, cross-dichroic mirrors, and cross-dichroic prisms are situated where principal rays (defined by the aperture stop) are parallel to the optical axis. The first PBS (if present) and color-separation optical system are preferably arranged between a front illumination lens group and a rear illumination lens group both comprising an illumination relay optical system telecentric on both front and rear sides thereof. Field lenses and relay lenses can be included that comprise a relay optical system forming a magnified image of the color-signal light valves at a position conjugate to the luminance-signal light valve with respect to the projection lens.
摘要翻译： 公开了提供没有颜色阴影或不均匀对比度的高亮度投影图像的装置。 来自光源的光通过分色光学系统（例如，十字分色镜或交叉二向色棱镜）进行颜色分离。 来自光源的光也可以通过例如第一偏振光分束器（PBS）而分裂成第一和第二偏振光。 每个分色光由相应的颜色信号光阀调制，并通过例如交叉二向色棱镜进行颜色组合。 第二偏振光（如果形成）由亮度信号光阀调制，则通过例如第二PBS进行颜色组合和偏振光组合，并由投影透镜（包括孔径光阑）投影。 PBS，交叉二向色镜和交叉二向色棱镜位于主光线（由孔径光阑限定）平行于光轴的位置。 第一PBS（如果存在）和分色光学系统优选地布置在前照明透镜组和后照明透镜组之间，其均包括在其前后两侧的远心照明中继光学系统。 可以包括场透镜和中继透镜，其包括在与亮度信号光阀相对于投影透镜共轭的位置处形成彩色信号光阀的放大图像的中继光学系统。
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公开(公告)号：US5959778A
公开(公告)日：1999-09-28
申请号：US988704
申请日：1997-12-11
CPC分类号： H04N9/3105 , H04N9/3167 , H04N5/7441
摘要： Apparatus is disclosed that provides a high-luminance projected image with no color shading or uneven contrast. Light from a light source undergoes color separation by passing through a color-separation optical system (e.g., a cross-dichroic mirror or cross-dichroic prism). The light from the light source can also be split into first and second polarized lights by passage through, e.g., a first polarized-light beamsplitter (PBS). Each color-separated light is modulated by a respective color-signal light valve and undergoes color combining by, e.g., a cross-dichroic prism. The second polarized light, if formed, is modulated by a luminance-signal light valve, undergoes color combining and polarized-light combining by, e.g., a second PBS, and is projected by a projection lens (that comprises an aperture stop). The PBSs, cross-dichroic mirrors, and cross-dichroic prisms are situated where principal rays (defined by the aperture stop) are parallel to the optical axis. The first PBS (if present) and color-separation optical system are preferably arranged between a front illumination lens group and a rear illumination lens group both comprising an illumination relay optical system telecentric on both front and rear sides thereof. Field lenses and relay lenses can be included that comprise a relay optical system forming a magnified image of the color-signal light valves at a position conjugate to the luminance-signal light valve with respect to the projection lens.
摘要翻译： 公开了提供没有颜色阴影或不均匀对比度的高亮度投影图像的装置。 来自光源的光通过分色光学系统（例如，十字分色镜或交叉二向色棱镜）进行颜色分离。 来自光源的光也可以通过例如第一偏振光分束器（PBS）而分裂成第一和第二偏振光。 每个分色光由相应的颜色信号光阀调制，并通过例如交叉二向色棱镜进行颜色组合。 第二偏振光（如果形成）由亮度信号光阀调制，则通过例如第二PBS进行颜色组合和偏振光组合，并由投影透镜（包括孔径光阑）投影。 PBS，交叉二向色镜和交叉二向色棱镜位于主光线（由孔径光阑限定）平行于光轴的位置。 第一PBS（如果存在）和分色光学系统优选地布置在前照明透镜组和后照明透镜组之间，其均包括在其前后两侧的远心照明中继光学系统。 可以包括场透镜和中继透镜，其包括在与亮度信号光阀相对于投影透镜共轭的位置处形成彩色信号光阀的放大图像的中继光学系统。
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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：US6062694A
公开(公告)日：2000-05-16
申请号：US993528
申请日：1997-12-18
CPC分类号： H04N9/3105 , G02B27/283 , H04N9/3167 , H04N5/7441
摘要： The present invention relates to a projection type display apparatus which utilizes a polarizing beam splitter and/or a color separating/combining optical system, each being constituted by an optically transparent material block having a specific characteristic, thereby being capable of securing optically stable performances against influences of various thermal and external stresses and suppressing image quality deterioration to a low level. In particular, in this projection type display apparatus, the polarizing beam splitter used for a polarized light separating optical system and analyzing optical system, and/or an optical member servicing as a color separating/combining optical system are constituted by an optically transparent material block in which a wavelength where the absolute value of a photoelastic constant becomes a minimum level exists in a wavelength range of a blue light component.
摘要翻译： 本发明涉及一种使用偏振光束分离器和/或分色/组合光学系统的投影型显示装置，每一个由具有特定特性的光学透明材料块构成，从而能够确保光学上稳定的性能，抵抗 各种热应力和外部应力的影响，并将图像质量降低到低水平。 特别地，在这种投影型显示装置中，用于偏振光分离光学系统和分析光学系统的偏振分束器和/或维修为分色/组合光学系统的光学部件由光学透明的材料块 其中光弹性常数的绝对值变为最小电平的波长存在于蓝光分量的波长范围内。
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公开(公告)号：US06386710B2
公开(公告)日：2002-05-14
申请号：US09750309
申请日：2000-12-29
申请人： Masaaki Kusano , Yuji Manabe , Atsushi Sekine
发明人： Masaaki Kusano , Yuji Manabe , Atsushi Sekine
IPC分类号： G03B2114
CPC分类号： H04N9/3105 , G02B27/145 , G02B27/149 , G02B27/283 , H04N5/7441
摘要： A projection display apparatus comprises a modulator, an analyzer, and projecting optical system. The modulator includes two-dimensionally arrayed pixel units and it modulates an incident light and emits the modulated light. The analyzer analyzes the emitted light from the modulator. The projection optical system projects the analyzed light from the analyzer. The analyzer includes a polarized beam splitter having a pair of prisms and an adhesive layer held between the pair of prisms. The difference in thickness between thin and thick portions of the adhesive layer is set equal to a predetermined value or less, based on a pixel pitch of the modulator.
摘要翻译： 投影显示装置包括调制器，分析器和投影光学系统。 调制器包括二维排列的像素单元，并调制入射光并发射调制光。 分析仪分析来自调制器的发射光。 投影光学系统投射来自分析仪的分析光。 分析仪包括具有一对棱镜的偏振分束器和保持在该对棱镜之间的粘合剂层。 基于调制器的像素间距，将粘合剂层的薄壁部分和厚部分之间的厚度差设定为等于或小于预定值。
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