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1. 发明授权

US5513035A Infrared polarizer 失效
标题翻译：红外线偏振片
公开(公告)号：US5513035A
公开(公告)日：1996-04-30
申请号：US294951
申请日：1994-08-24
申请人： Yoshito Miyatake , Shinya Sannohe
发明人： Yoshito Miyatake , Shinya Sannohe
IPC分类号： G02B5/30 , G02B27/28 , H04N9/31 , G02B1/08 , G02B1/10
CPC分类号： H04N9/3167 , G02B27/283 , G02B5/3033 , H04N9/3105
摘要： A polarizer comprising; a substrate transparent to a light of actual use and optical thin films of a higher refractive index than that of said substrate deposited on both surfaces of said substrate. The substrate is arranged so as to receive the incident light obliquely thereto. When the incident angle and the thickness of the optical thin film are optimally selected, the transmittance for the P polarized light can be made approximately 100%, while that for the S polarized light very small. The polarizer can extract a substantially linearly polarized light from natural light, A projection image display system has the polarizer as its pre-polarizer. The polarizer is also useful for infrared radiation.
摘要翻译：一种偏振器，包括：对实际使用的光透明的衬底和比沉积在所述衬底的两个表面上的所述衬底的折射率更高的光学薄膜。基板被布置成倾斜地接收入射光。当光学薄膜的入射角度和厚度被最佳选择时，P偏振光的透射率可以大致为100％，而S偏振光的透射率非常小。偏振器可以从自然光中提取基本上线性的偏振光。投影图像显示系统具有偏振器作为其预偏振器。偏振器也可用于红外辐射。

2. 发明授权

US5357370A Polarizer and light valve image projector having the polarizer 失效
标题翻译：具有偏振器的偏光镜和光阀图像投影仪
公开(公告)号：US5357370A
公开(公告)日：1994-10-18
申请号：US888773
申请日：1992-05-27
申请人： Yoshito Miyatake , Shinya Sannohe
发明人： Yoshito Miyatake , Shinya Sannohe
IPC分类号： G02B5/30 , G02B27/28 , H04N9/31
CPC分类号： H04N9/3167 , G02B27/283 , G02B5/3033 , H04N9/3105
摘要： A polarizer comprising; a substrate transparent to a light of actual use and optical thin films of a higher refractive index than that of said substrate deposited on both surfaces of said substrate. The substrate is arranged so as to receive the incident light obliquely thereto. When the incident angle and the thickness of the optical thin film are optimally selected, the transmittance for the P polarized light can be made approximately 100%, while that for the S polarized light very small. The polarizer can extract a substantially linearly polarized light from natural light. A projection image display system has the polarizer as its pre-polarizer. The polarizer is also useful for infrared radiation.
摘要翻译：一种偏振器，包括：对实际使用的光透明的衬底和比沉积在所述衬底的两个表面上的所述衬底的折射率更高的光学薄膜。基板被布置成倾斜地接收入射光。当光学薄膜的入射角度和厚度被最佳选择时，P偏振光的透射率可以大致为100％，而S偏振光的透射率非常小。偏振器可以从自然光中提取基本上线性的偏振光。投影图像显示系统具有偏振器作为其预偏振器。偏振器也可用于红外辐射。

3. 发明授权

US5795047A Projection lens and projection display apparatus 失效
标题翻译：投影镜头和投影显示装置
公开(公告)号：US5795047A
公开(公告)日：1998-08-18
申请号：US568473
申请日：1995-12-07
申请人： Shinya Sannohe , Yoshito Miyatake
发明人： Shinya Sannohe , Yoshito Miyatake
IPC分类号： G02B13/16 , G02B27/28 , H04N9/31 , G03B21/14
CPC分类号： H04N9/3105 , G02B13/16 , G02B27/283
摘要： A projection lens includes sequentially from a screen side a first lens group which has a negative power, a second lens group which has a weaker power than that of the first lens group, a third lens group which has a positive power, a fourth lens group which has a positive power, and at least one transparent prism, wherein the fourth lens group is placed on the third lens group side of the transparent prism so as to be close to or in contact with the transparent prism. In the projection lens, a back focus of the main lens group is much longer compared with a focal length. A projection display apparatus using this projection lens is composed of one main lens group, three auxiliary lenses, and three polarizer-beam splitters, and a color combining optical system for combining three primary color components of red, green, and blue into one light beam is placed between the main lens group and the auxiliary lens.
摘要翻译：投影透镜从屏幕侧依次包括具有负电源的第一透镜组，具有比第一透镜组弱的第二透镜组，具有正光焦度的第三透镜组，第四透镜组其具有正的功率，以及至少一个透明棱镜，其中所述第四透镜组被放置在所述透明棱镜的所述第三透镜组侧，以便接近所述透明棱镜或与所述透明棱镜接触。在投影透镜中，主透镜组的后焦距比焦距长得多。使用这种投影透镜的投影显示装置由一个主透镜组，三个辅助透镜和三个偏振器分束器组成，并且用于将红色，绿色和蓝色的三个原色分量组合成一个光束的颜色组合光学系统放置在主透镜组和辅助透镜之间。

4. 发明授权

US5657160A Polarization plane rotator applicable to polarization converter and projection display system 失效
标题翻译：偏振平面旋转器适用于偏振转换器和投影显示系统
公开(公告)号：US5657160A
公开(公告)日：1997-08-12
申请号：US160751
申请日：1993-12-03
申请人： Yoshito Miyatake , Shinya Sannohe
发明人： Yoshito Miyatake , Shinya Sannohe
IPC分类号： G02B5/30 , G02B27/28 , G02F1/13 , H04N5/74 , H04N9/31
CPC分类号： H04N9/3152 , G02B27/283 , G02B27/286 , H04N5/7441 , H04N9/3167
摘要： A polarization plane rotator, for executing rotation of the plane of polarization of linearly polarized light that is incident thereon with a predetermined angle of incidence, is formed of a transparent prism or an array of such prisms, each prism having a triangular cross-sectional shape, with first, second and third surfaces having respective lines of intersection that are mutually parallel. The linearly polarized light is incident on the first surface, to be reflected twice in succession at the second and third surfaces, to be emitted from the first surface with the plane of polarization rotated by 90.degree. and the direction of propagation altered. An optical thin film is formed on the second and third surfaces, for substantially reducing an amount of phase difference between the P and S polarization components which results from reflection, thereby ensuring that the emitted light is substantially completely linearly polarized. The polarization plane rotator can be combined with a polarizing beam splitter to form a polarization converter to implement a polarized light source having very high efficiency, suitable for use in a projection display system employing a polarization-dependent light valve.
摘要翻译：用于以预定入射角入射到其上的线偏振光的偏振平面的旋转的偏振面旋转体由透明棱镜或这种棱镜阵列形成，每个棱镜具有三角形横截面形状，其中第一，第二和第三表面具有相互平行的相应的交叉线。直线偏振光入射在第一表面上，在第二和第三表面连续反射两次，从第一表面发射，偏振面旋转90°，传播方向改变。在第二表面和第三表面上形成光学薄膜，用于基本上减少由反射产生的P和S偏振分量之间的相位差量，从而确保发射的光线基本上完全线性偏振。偏振平面旋转器可以与偏振分束器组合以形成偏振转换器，以实现非常高效率的偏振光源，适用于采用偏振相关光阀的投影显示系统。

5. 发明授权

US5946054A Optical apparatus, projection display apparatus and optical compensation method 失效
标题翻译：光学装置，投影显示装置和光学补偿方法
公开(公告)号：US5946054A
公开(公告)日：1999-08-31
申请号：US709283
申请日：1996-09-06
申请人： Shinya Sannohe , Yoshito Miyatake
发明人： Shinya Sannohe , Yoshito Miyatake
IPC分类号： H04N5/74 , H04N9/31
CPC分类号： H04N9/3167 , H04N5/74 , H04N9/3105 , G02B27/141 , G02B27/283
摘要： In the optical apparatus, the projection lens has a first lens group and a second lens group, the color synthesizing optical system has a transparent plate, dichroic mirrors and a plane mirror, the second lens group is disposed between the color synthesizing optical system and the polarization beam splitters, and the plane including the normal line of the plane of the transparent plate, the color synthesizing planes of the dichroic mirrors and the optical axis of the projection lens is perpendicular to the plane including the normal line of the polarizing and splitting planes of the polarization beam splitters and the optical axis of the projection lens.
摘要翻译：在光学装置中，投影透镜具有第一透镜组和第二透镜组，彩色合成光学系统具有透明板，二向色镜和平面镜，第二透镜组设置在彩色合成光学系统和偏振光束分离器和包括透明板平面的法线的平面，分色镜的颜色合成面和投影透镜的光轴垂直于包括偏光和分离平面的法线的平面的偏振分束器和投影透镜的光轴。

6. 发明授权

US5579138A Polarizer having a glass substrate with films on either side with different wavelength characteristics and projection display using same 失效
标题翻译：具有玻璃基板的偏光镜，其两侧的膜具有不同的波长特性，并且使用相同的投影显示
公开(公告)号：US5579138A
公开(公告)日：1996-11-26
申请号：US218957
申请日：1994-03-28
申请人： Shinya Sannohe , Yoshito Miyatake
发明人： Shinya Sannohe , Yoshito Miyatake
IPC分类号： G02B5/30 , G02B27/18 , G02B27/28 , H04N9/31 , G02F1/1335 , G02B1/10 , G02B5/28
CPC分类号： H04N9/3105 , G02B27/283 , H04N9/3167
摘要： A polarization separation mirror is made by evaporation-depositing a first multi-layers thin film and a second multi-layers thin film respectively on both surfaces of a transparent substrate, the mirror acts as a polarization beam splitter by cementing it between two transparent prism bodies. By shifting the relative film thicknesses of the first multi-layers thin film and of the second multi-layers thin film, reflecting wavelength range for the S-polarization component is changed.
摘要翻译：通过在透明基板的两个表面上分别蒸发沉积第一多层薄膜和第二多层薄膜来制造偏振分离镜，该反射镜通过将其固定在两个透明棱镜体之间作为偏振分束器。通过移动第一多层薄膜和第二多层薄膜的相对膜厚度，S偏振分量的反射波长范围改变。

7. 发明授权

US5453859A Polarization beam splitter and projection display apparatus 失效
标题翻译：极化分束器和投影显示装置
公开(公告)号：US5453859A
公开(公告)日：1995-09-26
申请号：US252319
申请日：1994-06-01
申请人： Shinya Sannohe , Yoshito Miyatake
发明人： Shinya Sannohe , Yoshito Miyatake
IPC分类号： G02B5/30 , G02B27/28 , G02F1/1335 , G02F1/13357 , H04N9/31 , G03B21/14
CPC分类号： G02B27/283 , G02F1/133536 , G02F1/13362 , G02F2001/13355
摘要： A polarization beam splitter which includes a first prism, a second prism, and a dielectric multilayer film which is sandwiched between the first and second prisms is disclosed. The dielectric multilayer film comprising: a plurality of high refractive index layers having a refractive index higher than refractive indices of the first and second prisms; a plurality of intermediate refractive index layers having a refractive index lower than the refractive index of the high refractive index layers; and a plurality of low refractive index layers having a refractive index lower than the refractive index of the intermediate refractive index layers, a reference incident angle .theta..sub.0 of light which is incident on the dielectric multilayer film through the first or second prism being within a range of the following expression:.theta..sub.1
摘要翻译：公开了一种偏振分束器，其包括夹在第一和第二棱镜之间的第一棱镜，第二棱镜和电介质多层膜。所述电介质多层膜包括：折射率高于所述第一和第二棱镜的折射率的多个高折射率层; 多个折射率低于高折射率层的折射率的中间折射率层; 以及折射率低于中间折射率层的折射率的多个低折射率层，通过第一或第二棱镜入射在电介质多层膜上的光的参考入射角θ0在一定范围内其中n H表示高折射率层的折射率，nM表示中间折射率层的折射率，nL表示折射率的折射率，低折射率层的折射率，n0表示第一和第二棱镜的折射率。

8. 发明授权

US08339501B2 Zoom lens system, imaging device and camera 有权
标题翻译：变焦镜头系统，成像设备和相机
公开(公告)号：US08339501B2
公开(公告)日：2012-12-25
申请号：US12879535
申请日：2010-09-10
申请人： Takakazu Bito , Yoshito Miyatake , Mamoru Honjo
发明人： Takakazu Bito , Yoshito Miyatake , Mamoru Honjo
IPC分类号： H04N5/225
CPC分类号： G02B15/173 , G02B27/646
摘要： A zoom lens system comprising a plurality of lens units each composed of at least one lens element, wherein the zoom lens system, in order from the object side to the image side, comprises: a first lens unit having positive optical power and comprising four lens elements; a second lens unit having negative optical power; and a third lens unit having positive optical power; wherein in zooming from a wide-angle limit to a telephoto limit at the time of image taking, at least the first lens unit is moved along an optical axis direction so as to achieve variable magnification, and wherein the conditions are satisfied: 0.30 20.5 (f1 is a composite focal length of the first lens unit, fW is a focal length of the entire system at a wide-angle limit, and fT is a focal length of the entire system at a telephoto limit), an imaging device and a camera are provided.
摘要翻译：一种变焦透镜系统，包括多个透镜单元，每个透镜单元均由至少一个透镜元件组成，其中所述变焦透镜系统从物体侧到像侧依次包括：具有正光焦度的第一透镜单元，包括四个透镜元素具有负光焦度的第二透镜单元; 和具有正光焦度的第三透镜单元; 其中，在从摄像时的广角限制变焦到远摄极限时，至少第一透镜单元沿着光轴方向移动，以实现可变放大倍数，并且其中满足条件：0.30 20.5（f1是第一透镜单元的复合焦距，fW是整个系统在广角极限处的焦距，fT是整体的焦距系统在远摄极限），提供成像装置和照相机。

9. 发明授权

US4936656A Video projector 失效
公开(公告)号：US4936656A
公开(公告)日：1990-06-26
申请号：US168318
申请日：1988-03-18
申请人： Ichiro Yamashita , Mamoru Takeda , Yoshito Miyatake , Yoneharu Takubo
发明人： Ichiro Yamashita , Mamoru Takeda , Yoshito Miyatake , Yoneharu Takubo
IPC分类号： G02F1/1362 , H04N5/74
CPC分类号： G02F1/13624 , H04N5/7441 , G02F1/136213
摘要： A video projector utilizes a reflective liquid crystal light valve of the active matrix system and a polarizing beam splitter. An active matrix array circuit of the light valve has pixel electrodes arranged in a matrix mattern. The pixel electrodes each has a reflective surface for reflecting a light beam and protects corresponding switch elements from the light beam. There are provided at least two switch elements for each of the pixel electrodes so as to enhance the redundancy of the array circuit. Further, each pixel electrode is provided with a suitable additional capacitance.

10. 发明申请

US20080297916A1 ZOOM LENS SYSTEM, IMAGING DEVICE AND CAMERA 有权
标题翻译：变焦镜头系统，成像设备和摄像机
公开(公告)号：US20080297916A1
公开(公告)日：2008-12-04
申请号：US12127345
申请日：2008-05-27
申请人： Keiki Yoshitsugu , Katsu Yamada , Yoshito Miyatake , Kazuhiko Ishimaru
发明人： Keiki Yoshitsugu , Katsu Yamada , Yoshito Miyatake , Kazuhiko Ishimaru
IPC分类号： G02B15/14
CPC分类号： G02B15/177 , G02B7/021
摘要： A zoom lens system comprising a first lens unit having negative power, a second lens unit having positive power and a third lens unit having positive power, wherein: the first lens unit comprises a first lens element having a concave surface at least on the image side and negative power and a second lens element having a convex surface at least on the object side and positive power; the second lens unit comprises a cemented lens element fabricated by two lens elements having optical power of mutually different signs and one single lens element; in zooming, all of the lens units move along an optical axis; and conditions (1): 5.0 35, αiW is an incident angle of a principal ray to an image sensor at a maximum image height at a wide-angle limit, n11 is a refractive index of the first lens element to the d-line, ωW is a half view angle at a wide-angle limit, and fT and fW are focal lengths of the entire system at a telephoto limit and a wide-angle limit, respectively) are satisfied.
摘要翻译：一种变焦透镜系统，包括具有负功率的第一透镜单元，具有正光焦度的第二透镜单元和具有正光焦度的第三透镜单元，其中：所述第一透镜单元包括至少在图像侧具有凹面的第一透镜元件负电源和至少在物体侧具有凸面的正电力的第二透镜元件; 第二透镜单元包括由具有相互不同标志的光学功率的两个透镜元件和一个单一透镜元件制成的胶合透镜元件; 在变焦中，所有的透镜单元沿光轴移动; 和条件（1）：5.0 = 1.9（其中，3.2 35，alphaiW是主光线与图像传感器的入射角在广角极限处的最大图像高度，n11是第一透镜元件对d线的折射率，ω是宽广角极限处的半视角，fT和fW是整体的焦距系统分别在远摄极限和广角限制）。

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