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11. 发明授权

US5543970A Zoom lens system 失效
标题翻译：变焦镜头系统
公开(公告)号：US5543970A
公开(公告)日：1996-08-06
申请号：US197006
申请日：1994-02-15
申请人： Kazuyoshi Hata , Yukio Maekawa , Katsuhiro Takamoto , Manami Saka
发明人： Kazuyoshi Hata , Yukio Maekawa , Katsuhiro Takamoto , Manami Saka
IPC分类号： G02B15/173 , G02B15/14 , G02B13/18
CPC分类号： G02B15/173
摘要： A zoom lens system according to the present invention comprises, from the object side to the image side, a first lens unit with a positive refractive power including a negative high dispersion lens element and a positive lens element; a second lens unit with a negative refractive power consisting of two or three lens elements including a positive high dispersion lens element and a negative lens element, and having at least one aspherical surface; and a third lens unit with a positive refractive power consisting of five or less lens elements including a negative high dispersion lens element and one or two positive lens elements located on the object side of the negative high dispersion lens element, and having at least one aspherical surface. With the lens arrangement, a compact high-zoom-ratio zoom lens system having a high aberration correction performance is realized.
摘要翻译：根据本发明的变焦透镜系统包括从物体侧到像侧，具有包括负高分散透镜元件和正透镜元件的正折光力的第一透镜单元; 具有负折射力的第二透镜单元，由具有正高分散透镜元件和负透镜元件的两个或三个透镜元件组成，并具有至少一个非球面; 以及具有正折射光焦度的第三透镜单元，其由五个或更少的透镜元件组成，所述透镜元件包括负高分散透镜元件和位于负高分散透镜元件的物体侧上的一个或两个正透镜元件，并且具有至少一个非球面表面。利用透镜布置，实现了具有高像差校正性能的紧凑型高变焦比变焦透镜系统。

12. 发明授权

US5268793A Zoom lens system 失效
标题翻译：变焦镜头系统
公开(公告)号：US5268793A
公开(公告)日：1993-12-07
申请号：US10582
申请日：1993-01-28
申请人： Manami Saka , Katsuhiro Takamoto
发明人： Manami Saka , Katsuhiro Takamoto
IPC分类号： G02B13/18 , G02B15/16 , G02B15/173 , G02B15/14
CPC分类号： G02B15/173
摘要： A variable lens system has three lens unit whose refractive powers are positive, negative and positive from an object side to the image side. Each lens unit consists of at least two lens elements. The central lens unit and the image side lens unit are shifted along an optical axis during a zooming operation. The lens system fulfills the conditions: ##EQU1## wherein fS, Z, and Y' represent the shortest focal length, a zoom ratio and an image height, respectively, of the lens system. .phi.1 and .phi.2 represent refractive powers of the object side and central lens units.
摘要翻译：可变透镜系统具有三个透镜单元，其折射力从物体侧到像侧为正，负和正。每个透镜单元由至少两个透镜元件组成。在变焦操作期间，中心透镜单元和图像侧透镜单元沿光轴移动。透镜系统满足以下条件：0.10 其中fS，Z和Y'表示最短焦距，a 分别为透镜系统的变焦比和图像高度。 phi 1和phi 2表示物体侧和中心透镜单元的折射力。

13. 发明授权

US06685322B2 Optical system and projection-type image display device 失效
标题翻译：光学系统和投影型图像显示装置
公开(公告)号：US06685322B2
公开(公告)日：2004-02-03
申请号：US09906267
申请日：2001-07-16
申请人： Shigeru Sawamura , Katsuhiro Takamoto , Katsunari Fujiki
发明人： Shigeru Sawamura , Katsuhiro Takamoto , Katsunari Fujiki
IPC分类号： G03B2100
CPC分类号： G03B21/005
摘要： An optical system includes a first prism having a first surface and a second surface forming an acute angle therebetween, and a second prism having a third surface. The first prism and the second prism form an air gap between the second surface and the third surface. The air gap formed by the second surface and the third surface has a cross section perpendicular to the first surface and the second surface which is a wedge shape which is wide at a part thereof near the first surface and narrower at a part thereof more distant from the first surface.
摘要翻译：光学系统包括具有第一表面和在其间形成锐角的第二表面的第一棱镜和具有第三表面的第二棱镜。第一棱镜和第二棱镜在第二表面和第三表面之间形成气隙。由第二表面和第三表面形成的空气间隙具有垂直于第一表面的横截面和第二表面，该第二表面是在第一表面附近的部分处宽的楔形，并且在远离其的部分更窄第一个表面。

14. 发明授权

US06558007B2 Illumination optical system and image projection apparatus 有权
公开(公告)号：US06558007B2
公开(公告)日：2003-05-06
申请号：US10059732
申请日：2002-01-28
申请人： Tomoko Nakagawa , Shigeru Sawamura , Katsuhiro Takamoto
发明人： Tomoko Nakagawa , Shigeru Sawamura , Katsuhiro Takamoto
IPC分类号： G03B2128
CPC分类号： H04N5/74 , F21V5/04 , F21W2131/406 , G02B19/0014 , G02B19/0047 , H04N5/7458
摘要： An illumination optical system has a light source, an integrator for making the intensity distribution of the light from the light source even, and a relay optical system for imaging the light from the integrator on a plane conjugate with the exit surface of the integrator. The relay optical system includes a rear lens unit of which the refractive power is asymmetrical in one direction so that the plane on which the light is imaged is inclined relative to the optical axis of the relay optical system. This makes it possible to direct light to an inclined surface with an even intensity distribution and with minimum loss of the illumination light.

15. 发明授权

US06454417B1 Projection optical system comprising an optical function surface for reflecting or transmitting light from a spatial light modulator 有权
标题翻译：投影光学系统包括用于反射或透射来自空间光调制器的光的光学功能表面
公开(公告)号：US06454417B1
公开(公告)日：2002-09-24
申请号：US09517236
申请日：2000-03-02
申请人： Katsuhiro Takamoto , Shigeru Sawamura
发明人： Katsuhiro Takamoto , Shigeru Sawamura
IPC分类号： G03B2100
CPC分类号： G02B26/0833 , G03B21/28
摘要： In a projector optical system provided with a DMD having minute mirror devices regularly arranged on one plane so as to correspond to the pixels of an image and selectively reflecting illuminating light in the direction of the optical axis of a projection optical system or in a direction different from the direction of the optical axis by bringing the mirror devices into an ON state or an OFF state according to the input video signals, and a prism disposed between the DMD and the projection optical system and having a first surface reflecting the illuminating light to be directed to the DMD and transmitting the light reflected at the DMD, the prism has a second surface transmitting, of the light transmitted by the first surface, light reflected at the mirror devices in the ON state and reflecting light reflected at the mirror devices in the OFF state.
摘要翻译：在具有DMD的投影仪光学系统中，具有规则地布置在一个平面上的微小反射镜装置，以对应于图像的像素，并且在投影光学系统的光轴的方向上或沿着不同的方向选择性地反射照明光通过根据输入视频信号使镜装置进入ON状态或OFF状态，以及设置在DMD和投影光学系统之间并具有反射照明光的第一表面的棱镜，从光轴方向指向DMD并透射在DMD处反射的光，棱镜具有透射由第一表面透射的光的第二表面，在反射镜装置处反射的光处于导通状态，并且反射在反射镜装置中反射的光 OFF状态。

16. 发明授权

US06275343B1 Projection optical system 有权
标题翻译：投影光学系统
公开(公告)号：US06275343B1
公开(公告)日：2001-08-14
申请号：US09550911
申请日：2000-04-17
申请人： Katsuhiro Takamoto , Jun Nishikawa
发明人： Katsuhiro Takamoto , Jun Nishikawa
IPC分类号： G02B900
CPC分类号： G02B13/22 , G02B13/04
摘要： A projection optical system has, from the enlargement side to the reduction side, a first, a second, and a third lens unit, and an aperture diaphragm. The negatively-powered first lens unit includes only a negative lens element and has at least one aspherical surface. The positively-powered second lens unit includes at least one positive lens element. The positively-powered third lens unit includes a lens element. The aperture diaphragm is disposed at the front focal point of the third lens unit. The lens element of the third lens unit is made of a material of which anomalous partial dispersibility and Abbe number are defined.
摘要翻译：投影光学系统从放大侧到还原侧具有第一，第二和第三透镜单元和孔径光阑。负动力的第一透镜单元仅包括负透镜元件并且具有至少一个非球面。有动力的第二透镜单元包括至少一个正透镜元件。有动力的第三透镜单元包括透镜元件。孔径光阑设置在第三透镜单元的前焦点处。第三透镜单元的透镜元件由定义异常部分分散性和阿贝数的材料制成。

17. 发明授权

US6014267A Variable magnification optical system 有权
标题翻译：变倍光学系统
公开(公告)号：US6014267A
公开(公告)日：2000-01-11
申请号：US169771
申请日：1998-10-09
申请人： Katsutoshi Tsurutani , Katsuhiro Takamoto
发明人： Katsutoshi Tsurutani , Katsuhiro Takamoto
IPC分类号： G02B9/64 , G02B13/16 , G02B13/18 , G02B15/00 , G02B15/16 , G02B15/177 , G02B15/14
CPC分类号： G02B13/16 , G02B15/177
摘要： A variable magnification optical system includes, from the projection side, a negative first lens unit, a positive second lens unit and a positive third lens unit. The magnification is varied by moving the first and second lens units along the optical axis. A lens element in the first lens unit and a lens element in the third lens unit are aspherical lens elements of which aspherical deviation is defined. A positive lens element in the third lens unit is made of a material of which anomalous partial dispersibility and Abbe number are defined.
摘要翻译：可变放大率光学系统包括从投影侧的负的第一透镜单元，正的第二透镜单元和正的第三透镜单元。通过沿着光轴移动第一透镜单元和第二透镜单元来改变放大率。第一透镜单元中的透镜元件和第三透镜单元中的透镜元件是限定非球面偏差的非球面透镜元件。第三透镜单元中的正透镜元件由限定了异常部分分散性和阿贝数的材料制成。

18. 发明授权

US5993010A Two-dimensional illumination optical system and liquid crystal projector using same 失效
标题翻译：二维照明光学系统和液晶投影机使用相同
公开(公告)号：US5993010A
公开(公告)日：1999-11-30
申请号：US119953
申请日：1998-07-21
申请人： Soh Ohzawa , Katsuhiro Takamoto
发明人： Soh Ohzawa , Katsuhiro Takamoto
IPC分类号： G02F1/13 , F21V7/00 , F21V13/04 , G02B5/09 , G02B27/00 , G02B27/18 , G02F1/1335 , G02F1/13357 , G03B21/00 , H04N5/74 , G03B21/14
CPC分类号： G02B5/09 , F21V13/04 , F21V7/00 , G02B3/0068 , G02B5/13 , G03B21/2066 , G03B21/2073 , H04N5/7441
摘要： An illumination optical system has a light source unit, a first array having a plurality of two-dimensionally arranged cells which deflect a incident light from the light source unit and a second array having a plurality of cells two-dimensionally arranged in a vicinity of a focal plane of the first array, wherein at least one of the first array and the second array is formed as a reflection array.
摘要翻译：照明光学系统具有光源单元，第一阵列具有多个二维布置的单元，其偏转来自光源单元的入射光;以及第二阵列，其具有二维布置在第一阵列的焦平面，其中第一阵列和第二阵列中的至少一个形成为反射阵列。

19. 发明授权

US5716118A Imaging optical system 失效
标题翻译：成像光学系统
公开(公告)号：US5716118A
公开(公告)日：1998-02-10
申请号：US732702
申请日：1996-10-18
申请人： Akira Sato , Soh Ohzawa , Katsuhiro Takamoto
发明人： Akira Sato , Soh Ohzawa , Katsuhiro Takamoto
IPC分类号： G02B13/18 , G02B17/08 , G02B27/18 , G03B21/28
CPC分类号： G02B17/08 , G02B17/0852 , G03B21/28
摘要： An imaging optical system transmits a primary image. The optical system does not form an intermediate image. The primary image is projected on a screen as a secondary image. The optical system has a projection optical system and a reflection optical system. An optical axis of the reflection optical system forms an angle other than 90.degree. with respect to a screen-side image surface.
摘要翻译：成像光学系统传输主图像。光学系统不形成中间图像。主图像作为辅助图像投影在屏幕上。光学系统具有投影光学系统和反射光学系统。反射光学系统的光轴相对于屏幕侧图像面形成90度以外的角度。

20. 发明授权

US5359457A Wide-angle zoom lens system 失效
标题翻译：广角变焦镜头系统
公开(公告)号：US5359457A
公开(公告)日：1994-10-25
申请号：US947788
申请日：1992-09-18
申请人： Manami Saka , Katsuhiro Takamoto
发明人： Manami Saka , Katsuhiro Takamoto
IPC分类号： G02B15/173 , G02B15/14
CPC分类号： G02B15/173
摘要： A wide-angle zoom lens system comprises, from the object side to the image side, a first positive lens unit being stationary on an optical axis during a zooming operation, a second negative lens unit shifting along the optical axis during the zooming operation, a third positive lens unit being stationary on the optical axis during the zooming operation, and a fourth positive lens unit shifting along the optical axis during the zooming operation, wherein the refractive power of the first and second lens units fulfills the predetermined conditions.
摘要翻译：广角变焦透镜系统包括从物体侧到像侧，在变焦操作期间在光轴上固定的第一正透镜单元，在变焦操作期间沿着光轴移动的第二负透镜单元，第三正透镜单元在变焦操作期间在光轴上是静止的，以及在变焦操作期间沿着光轴移动的第四正透镜单元，其中第一和第二透镜单元的屈光力达到预定条件。

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