公开(公告)号：US08303117B2

公开(公告)日：2012-11-06

申请号：US12797089

申请日：2010-06-09

申请人： Chikara Yamamoto

发明人： Chikara Yamamoto

IPC分类号： G03B21/14

CPC分类号： G03B33/12 ,  G03B21/2073 ,  G03B21/208

摘要： A projection optical system can achieve compactness and improve a state where polarized rays are separated by a polarized light separation section, without a separate optical system which makes the whole system telecentric, by using a reflective light valve. The projection optical system includes, in order, the reflective light valve, a projection lens and the polarized light separation section. The reflective light valve modulates incident illumination light in response to an input image signal and reflects and emits the modulated light. The projection lens transmits the illumination light incident to the reflective light valve and the modulated light emitted from the reflective light valve and is formed to be telecentric on the reduction side. The polarized light separation section separates the optical path of the illumination light incident to the projection lens from the optical path of the modulated light emitted from the projection lens.

摘要翻译： 投影光学系统可以通过使用反射型光阀，而不需要使整个系统变得远心的单独的光学系统来实现紧凑性并且改善偏振光被偏振光分离部分离的状态。 投影光学系统依次包括反射光阀，投影透镜和偏振光分离部。 反射光阀响应于输入图像信号调制入射照明光并反射并发射调制光。 投影透镜将入射到反射光阀的照明光和从反射光阀发射的调制光透过，并且在还原侧形成为远心。 偏振光分离部将入射到投影透镜的照明光的光路与从投影透镜发射的调制光的光路分离。

公开(公告)号：US08272742B2

公开(公告)日：2012-09-25

申请号：US12569663

申请日：2009-09-29

申请人： Chikara Yamamoto

发明人： Chikara Yamamoto

IPC分类号： G03B21/14

CPC分类号： G03B21/28

摘要： Linearly polarized illumination light that is emitted from a light source unit and then reaches a polarized light separation plane along the optical axis of an illumination optical unit is reflected from the polarized light separation plane at a right angle and reaches a reflection optical unit. The reflection optical unit reverses the phase of the linearly polarized illumination light and reflects the illumination light to the polarized light separation plane. The illumination light passes through the polarized light separation plane and reaches a reflective liquid crystal display device. The reflective liquid crystal display device converts the illumination light into modulated light having image information thereon. In this case, the phase of the linearly polarized light is reversed again and reflected from the polarized light separation plane at a right angle to reach a projection lens. The light is enlarged and projected onto a screen.

摘要翻译： 从光源单元发射，然后沿着照明光学单元的光轴到达偏振光分离面的线偏振照明光从偏振光分离面以直角反射，到达反射光学单元。 反射光学单元反转线偏振照明光的相位并将照明光反射到偏振光分离面。 照明光通过偏振光分离面，到达反射型液晶显示装置。 反射型液晶显示装置将照明光转换成具有图像信息的调制光。 在这种情况下，线偏振光的相位再次反转，并且从偏振光分离面以直角反射到达投影透镜。 光被放大并投射到屏幕上。

公开(公告)号：US07885009B2

公开(公告)日：2011-02-08

申请号：US12544633

申请日：2009-08-20

申请人： Tomoyuki Baba ,  Chikara Yamamoto ,  Kenzo Sado

发明人： Tomoyuki Baba ,  Chikara Yamamoto ,  Kenzo Sado

IPC分类号： G02B9/00

CPC分类号： G02B13/16 ,  G02B9/34

摘要： A small projection lens includes a first lens, which is a biconvex lens, an aperture, an aperture diaphragm (or an aperture), a second lens, which is a negative meniscus lens having a concave surface facing a magnification side, a third lens, which is a positive meniscus lens having a convex surface facing a reduction side, and a fourth lens, which is a biconvex lens having aspheric surfaces at both sides on an optical axis, arranged in this order from the magnification side. A minimum portion of the length of all lens elements of the small projection lens in a diametric direction vertical to the optical axis is equal to or less than 15 mm, and the small projection lens satisfies the following conditional expression: 2.5

摘要翻译： 小投影透镜包括作为双凸透镜的第一透镜，孔，孔径光阑（或孔），具有面向放大侧的凹面的负弯月形透镜的第二透镜，第三透镜​​， 其是具有面向减压侧的凸面的正弯月形透镜，以及具有从放大侧依次配置的具有在光轴两侧具有非球面的双凸透镜的第四透镜。 小投影透镜的垂直于光轴的直径方向的所有透镜元件的长度的最小部分等于或小于15mm，小投影透镜满足以下条件表达式：2.5 <＆bgr / S <10.0（其中S表示放大倍率图像的最大长度（英寸），＆amp; bgr表示放大倍数）。

公开(公告)号：US20100268033A1

公开(公告)日：2010-10-21

申请号：US12761974

申请日：2010-04-16

申请人： Chikara Yamamoto

发明人： Chikara Yamamoto

IPC分类号： A61B1/06

CPC分类号： A61B1/041 ,  A61B1/00177 ,  A61B1/0615 ,  A61B1/0676 ,  A61B1/0684 ,  A61B5/073

摘要： A capsule endoscope includes a capsule body having a cylindrical section, and a transparent cover. In the capsule endoscope, a reflective optical system, an image forming optical system, LEDs, and an image sensor are contained. The cylindrical transparent cover is disposed in the middle of the cylindrical section in a longitudinal direction. Through the transparent cover, light is transmittable in 360 degrees around a central axis of the capsule body. The reflective optical system reflects the light that has entered the capsule body through the transparent cover to the image forming optical system. The image forming optical system forms a 360 degree image around the whole circumference of the cylindrical section on the image sensor. The 360 degree image is circular in shape.

摘要翻译： 胶囊型内窥镜包括具有圆筒部的胶囊主体和透明罩。 在胶囊型内窥镜中，包含反射光学系统，图像形成光学系统，LED和图像传感器。 圆柱形透明盖沿纵向设置在圆柱形部分的中间。 通过透明盖，光可绕胶囊主体的中心轴线360度传播。 反射光学系统通过透明盖将进入胶囊主体的光反射到图像形成光学系统。 图像形成光学系统围绕图像传感器上的圆柱形部分的整个圆周形成360度图像。 360度图像呈圆形。

公开(公告)号：US07764437B2

公开(公告)日：2010-07-27

申请号：US11606086

申请日：2006-11-30

申请人： Chikara Yamamoto

发明人： Chikara Yamamoto

IPC分类号： G02B15/14

CPC分类号： G02B23/2438 ,  G02B15/177

摘要： An objective lens for an endoscope is provided and has a lens group A and a lens group B that are movable in a direction of an optical axis. In the objective lens, first focal adjustment for observing a point between a most-distant point and an intermediate point is performed by moving the lens group A from a lens arrangement for observing the most-distant point; and second focal adjustment for observing a point between the intermediate point to a nearest point is performed by moving the lens group B from a lens arrangement for observing the intermediate point.

摘要翻译： 提供了一种用于内窥镜的物镜，并具有可沿光轴方向移动的透镜组A和透镜组B. 在物镜中，通过从用于观察最远点的透镜装置移动透镜组A来执行用于观察最远点和中间点之间的点的第一焦点调节; 并且通过从用于观察中间点的透镜装置移动透镜组B来执行用于观察中间点到最近点之间的点的第二焦点调节。

公开(公告)号：US20100053774A1

公开(公告)日：2010-03-04

申请号：US12544633

申请日：2009-08-20

申请人： Tomoyuki BABA ,  Chikara Yamamoto ,  Kenzo Sado

发明人： Tomoyuki BABA ,  Chikara Yamamoto ,  Kenzo Sado

IPC分类号： G02B27/18 ,  G02B3/00 ,  G02B9/34 ,  G02B9/60 ,  G02B9/62 ,  G02B9/64

CPC分类号： G02B13/16 ,  G02B9/34

摘要： A small projection lens includes a first lens, which is a biconvex lens, an aperture, an aperture diaphragm (or an aperture), a second lens, which is a negative meniscus lens having a concave surface facing a magnification side, a third lens, which is a positive meniscus lens having a convex surface facing a reduction side, and a fourth lens, which is a biconvex lens having aspheric surfaces at both sides on an optical axis, arranged in this order from the magnification side.A minimum portion of the length of all lens elements of the small projection lens in a diametric direction vertical to the optical axis is equal to or less than 15 mm, and the small projection lens satisfies the following conditional expression: 2.5

摘要翻译： 小投影透镜包括作为双凸透镜的第一透镜，孔，孔径光阑（或孔），具有面向放大侧的凹面的负弯月形透镜的第二透镜，第三透镜​​， 其是具有面向减压侧的凸面的正弯月形透镜，以及具有从放大侧依次配置的具有在光轴两侧具有非球面的双凸透镜的第四透镜。 小投影透镜的垂直于光轴的直径方向的所有透镜元件的长度的最小部分等于或小于15mm，小投影透镜满足以下条件表达式：2.5 <＆bgr / S <10.0（其中S表示放大倍率图像的最大长度（英寸），＆amp; bgr表示放大倍数）。

公开(公告)号：US07591560B2

公开(公告)日：2009-09-22

申请号：US11311324

申请日：2005-12-20

申请人： Chikara Yamamoto

发明人： Chikara Yamamoto

IPC分类号： G03B21/28 ,  G03B21/14 ,  G03B21/26 ,  G03B21/56 ,  G02B5/08 ,  G02B7/182 ,  G02B5/10 ,  G02F1/00 ,  H04N9/31 ,  H04N5/74 ,  H04N3/14

CPC分类号： G02B17/0642

摘要： A reflection optical system placed between a light valve 5 and a screen 4, wherein curved surfaces are only three reflection surfaces of first to third mirrors 1 to 3, and satisfies the following:(1) θL

摘要翻译： 放置在光阀5和屏幕4之间的反射光学系统，其中弯曲表面仅为第一至第三反射镜1至3的三个反射表面，并且满足以下条件：（1）θL<20度，（2）25度 55度，（3）20度<θ度<55度，（4）15度θM2<50度，（5）8度θ3度30度，（6）θL<15度，（7） 30度θ和（8）7.5度<|θF |，其中θL：光瞳中心相对于放大侧图像表面形成的最小角度; θUL：光瞳中心相对于放大侧图像表面形成的最大和最小角度之间的差; θM1，θM2和θM3：通过第一至第三反射镜1至3中的还原侧图像表面的中心的光瞳中心的光束的偏离角; 和thetaF：还原侧光瞳发散角。

公开(公告)号：US07542213B2

公开(公告)日：2009-06-02

申请号：US11860997

申请日：2007-09-25

申请人： Chikara Yamamoto

发明人： Chikara Yamamoto

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： A power varying operation is performed by moving four lens groups out of six lens groups. A reduction side of a zoom lens is constructed as a substantially telecentric system. An aspheric lens is arranged in a pupil neighboring position where an effective aperture becomes smallest. Conditional Expressions (1) to (5) are satisfied. 1.2≦bf/fw  (1) |fa/fw|≦4.5  (2) φa/φim≦1.0  (3) |ffaw/fw|≦1.5  (4) E≦300×10−7(/° C.)  (5)

摘要翻译： 通过从六个透镜组中移动四个透镜组来执行功率变化操作。 变焦镜头的减压侧被构造为基本上远心的系统。 非球面透镜被布置在瞳孔相邻位置，其中有效孔径变得最小。 满足条件表达式（1）至（5）。 <？in-line-formula description =“In-line Formulas”end =“lead”？> 1.2 <= bf / fw（1）<？in-line-formula description =“In-line Formulas”end =“tail “？> <？in-line-formula description =”In-line Formulas“end =”lead“？> | fa / fw | <= 4.5（2）<？in-line-formula description = “end =”tail“？> <？in-line-formula description =”In-line Formulas“end =”lead“？> phia / phiim <= 1.0（3）<？in-line-formula description =”In “公式”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> | ffaw / fw | <= 1.5（4）<？in-line- 公式description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> E <= 300x10-7（/°C） （5）<？in-line-formula description =“In-line Formulas”end =“tail”？>

公开(公告)号：US07503657B2

公开(公告)日：2009-03-17

申请号：US12209188

申请日：2008-09-11

申请人： Chikara Yamamoto

发明人： Chikara Yamamoto

IPC分类号： G03B21/14

CPC分类号： G03B21/005 ,  G03B21/2073 ,  G03B33/12

摘要： Color separation and synthesis systems, color separation systems and color synthesis systems, illumination optical systems, projection optical systems, and projection display devices using these systems include a wavelength-splitting element that reflects linearly polarized light of one wavelength and transmits light of another wavelength; a polarization-transforming element that changes the direction of polarization of linearly polarized light of one wavelength and that is arranged adjacent and at least nearly parallel to the wavelength-splitting element; and a polarization-sensitive beam splitter that reflects light having one direction of linear polarization and transmits light with another linear polarization. These systems provide for dividing and combining three linearly polarized light beams of different wavelengths so that they provide imaging beams to and from display elements, such as LCOSs, that can produce a high quality full color image with fewer optical elements in the various systems and the projection display device.

摘要翻译： 颜色分离和合成系统，分色系统和颜色合成系统，照明光学系统，投影光学系统和使用这些系统的投影显示装置包括：反射一个波长的线偏振光并透射另一波长的光的波长分离元件; 偏振变换元件，其改变一个波长的线偏振光的偏振方向，并且被布置为与波长分离元件相邻且至少几乎平行; 以及偏振光分束器，其反射具有一个线性偏振方向的光并透射具有另一线性偏振的光。 这些系统提供用于分割和组合不同波长的三个线性偏振光束，使得它们向显示元件（例如LCOS）提供成像光束，其可以在各种系统中产生具有较少光学元件的高质量全色图像，并且 投影显示装置。

公开(公告)号：US06585380B2

公开(公告)日：2003-07-01

申请号：US09974835

申请日：2001-10-12

申请人： Chikara Yamamoto

发明人： Chikara Yamamoto

IPC分类号： G03B2128

CPC分类号： G02B27/1046 ,  G02B27/123 ,  G02B27/143 ,  G02B27/149 ,  H04N9/3105 ,  H04N9/3164

摘要： An illumination apparatus comprises a plurality of light source sections, an integrator section, and a mirror element. Each light source section is constituted by a luminous body and a reflector comprising an ellipsoidal surface having one focal point located near the center of gravity of the luminous body. The integrator section is constituted by at least two integrator plates, arranged in the optical axis direction of light, for homogenizing the quantity of light emitted from the light source sections. The mirror element has a reflecting surface near the other focal point of the ellipsoidal surface of at least one reflector, and reflects the luminous flux from the light source group toward the integrator section. The optical axis of the illumination apparatus as a whole and the optical axis of at least one reflector form a predetermined angle therebetween.