公开(公告)号：US20070195289A1

公开(公告)日：2007-08-23

申请号：US11708274

申请日：2007-02-20

申请人： Soh Ohzawa

发明人： Soh Ohzawa

IPC分类号： G03B21/28

CPC分类号： G03B21/28 ,  G02B13/16 ,  G02B17/0832 ,  G02B17/0852

摘要： A projector has a projection optical system unit, which has a positively powered optical system and a curved-mirror optical system. In the projector, a first curved mirror and a second curved mirror of the curved-mirror optical system are so arranged that the optical path that the base ray travels to reach the first curved mirror crosses the optical path that the base ray travels to leave the second curved mirror. Moreover, the second curved mirror has a negative optical power.

摘要翻译： 投影仪具有投影光学系统单元，其具有有功功率的光学系统和曲面镜光学系统。 在投影仪中，弯曲镜光学系统的第一曲面镜和第二曲面镜被布置成使得基部光线行进到达第一弯曲镜的光路与基部光线行进的光路相交离开 第二弯曲镜。 此外，第二曲面镜具有负的光焦度。

公开(公告)号：US20050174463A1

公开(公告)日：2005-08-11

申请号：US10864727

申请日：2004-06-09

申请人： Soh Ohzawa ,  Keiji Matsusaka

发明人： Soh Ohzawa ,  Keiji Matsusaka

IPC分类号： G02B13/04 ,  G02B13/06 ,  G02B13/18 ,  H04N5/225

CPC分类号： G02B13/06

摘要： A super-wide-angle optical system for forming an optical image of an object on an image pickup surface of an image sensing device that converts the optical image into an electrical signal is provided with, in order from the object side, a first negative lens, a second negative lens and a positive lens. The first negative lens has a meniscus shape convex to the object side. The second negative lens is positioned next to the first negative lens. The positive lens has an aspherical surface. At least one of four lens surfaces of the first and second lenses is an aspherical surface. A prescribed condition is fulfilled.

摘要翻译： 在物体侧依次设置用于在将图像传感装置的图像拾取表面上形成光学图像的光学图像转换为电信号的超广角光学系统中的第一负透镜 ，第二负透镜和正透镜。 第一负透镜具有向物体侧凸出的弯月形状。 第二负透镜位于第一负透镜的旁边。 正透镜具有非球面。 第一和第二透镜的四个透镜表面中的至少一个是非球面。 达成规定的条件。

公开(公告)号：US06624952B2

公开(公告)日：2003-09-23

申请号：US10178205

申请日：2002-06-24

申请人： Tomiei Kuwa ,  Soh Ohzawa ,  Kohtaro Hayashi

发明人： Tomiei Kuwa ,  Soh Ohzawa ,  Kohtaro Hayashi

IPC分类号： G02B2718

CPC分类号： G02B13/16 ,  G02B13/04 ,  G02B17/045

摘要： A projection optical system projects an enlarged image of a light valve image onto a screen. The system has, from the conjugate enlargement side: a negative front lens unit, optical path turning means (including a reflecting surface), a positive rear lens unit, and projection light preparing means, which can separate illumination and projection light, or can integrate light of different colors, or can do both. Each of the front and rear lens units includes at least one aspherical surface. The front lens unit has a negative first lens element at its conjugate-enlargement end and a negative second lens element at the conjugate reduction side of the first lens element. The rear lens unit includes a positive third lens element made of an anomalous dispersion material. The center of the light valve is not located on the optical axis of the rear lens unit.

摘要翻译： 投影光学系统将光阀图像的放大图像投影到屏幕上。 该系统具有从共轭放大侧：负前透镜单元，光路转向装置（包括反射面），正后透镜单元和投影光准备装置，其可以分离照明和投影光，或可以集成 不同颜色的光，或可以做两者。 前后透镜单元中的每一个包括至少一个非球面。 前透镜单元在其共轭放大端具有负第一透镜元件，在第一透镜元件的共轭还原侧具有负第二透镜元件。 后透镜单元包括由异常分散材料制成的正的第三透镜元件。 光阀的中心不位于后透镜单元的光轴上。

公开(公告)号：US06480338B1

公开(公告)日：2002-11-12

申请号：US09706743

申请日：2000-11-07

申请人： Soh Ohzawa

发明人： Soh Ohzawa

IPC分类号： G02B2500

CPC分类号： G02B25/001

摘要： An eyepiece optical system for projecting an enlarged virtual image of a two-dimensional image on an observer's pupil has a first reflective/transmissive surface formed as a flat surface, a second reflective/transmissive surface so shaped as to be concave to the pupil side, and a negative-powered optical element having a negative power and arranged between the second reflective/transmissive surface and the two-dimensional image. Here the focal length of the negative-powered optical element f2 and the focal length of the entire eyepiece optical system fs are so determined as to fulfill the following condition: −1.0

摘要翻译： 用于将观察者瞳孔上的二维图像的放大虚像投影的目镜光学系统具有形成为平坦表面的第一反射/透射表面，被成形为对瞳孔侧凹入的第二反射/透射表面， 以及具有负功率并且布置在第二反射/透射表面和二维图像之间的负动力光学元件。 这里，负功率光学元件f2的焦距和整个目镜光学系统fs的焦距被确定为满足以下条件：

公开(公告)号：US06429971B2

公开(公告)日：2002-08-06

申请号：US09737920

申请日：2000-12-15

申请人： Mituaki Shimo ,  Soh Ohzawa

发明人： Mituaki Shimo ,  Soh Ohzawa

IPC分类号： G02B2764

CPC分类号： G02B7/28

摘要： A focusing method for a decentered optical system including a decentered lens element has translationally moving and inclining at least one lens element for different object distances, in such a way that variation in a position of a primary image point is kept within a range defined by the following condition. Here &Dgr;fb represents a maximum distance traveled by the primary image point during focusing; and &THgr;max represents a maximum angle of peripheral rays traveling from a center of an object to a center of an image plane relative to a base ray: |&Dgr;fb ×sin(&THgr;max)|max≦0.8.

摘要翻译： 包括偏心透镜元件的偏心光学系统的聚焦方法具有平移运动并且倾斜至少一个用于不同物体距离的透镜元件，使得主像点位置的变化保持在由 以下条件。 这里，DELTAfb表示在聚焦期间由原始图像点行进的最大距离; ＆amp; THgr; max表示从物体的中心到像平面相对于基部光线的中心行进的周边光线的最大角度：

公开(公告)号：US06201647B1

公开(公告)日：2001-03-13

申请号：US09342484

申请日：1999-06-29

申请人： Soh Ohzawa

发明人： Soh Ohzawa

IPC分类号： G02B2714

CPC分类号： G02B27/0172 ,  G02B25/001

摘要： An image display apparatus has a display unit and an eyepiece optical system. The display unit displays a two-dimensional image. The eyepiece optical system projects the two-dimensional image into an observer's pupil to enable the observer to view an enlarged virtual image of the two-dimensional image. The optical axis of the eyepiece optical system is decentered from the visual axis of the observer's pupil.

摘要翻译： 图像显示装置具有显示单元和目镜光学系统。 显示单元显示二维图像。 目镜光学系统将二维图像投影到观察者的瞳孔中，使得观察者能够观看二维图像的放大虚像。 目镜光学系统的光轴偏离观察者瞳孔的视轴。

公开(公告)号：US6097526A

公开(公告)日：2000-08-01

申请号：US316818

申请日：1999-05-21

申请人： Hideki Nagata ,  Kohtaro Hayashi ,  Ichiro Kasai ,  Soh Ohzawa ,  Akira Sato ,  Yasushi Kobayashi

发明人： Hideki Nagata ,  Kohtaro Hayashi ,  Ichiro Kasai ,  Soh Ohzawa ,  Akira Sato ,  Yasushi Kobayashi

IPC分类号： G02B26/10 ,  G02B13/00 ,  G02B27/01 ,  G02B27/02 ,  H04N5/64 ,  G02B26/08

CPC分类号： G02B27/0101 ,  G02B27/01 ,  G02B27/017 ,  G02B27/0172

摘要： A scanning-type image viewing optical system has a light source for emitting luminous flux; a main scanning means for scanning luminous flux in a first direction; a sub-scanning means for scanning luminous flux in a second direction different from the first direction; and an eyepiece lens for directing luminous flux scanned by the two scanning means to the pupil of an observer, wherein the main scanning means has a conjugate relationship with the pupil position of the observer via the eyepiece lens, and when the pupil diameter, i.e., the luminous flux diameter of the incident luminous flux at the pupil position of the observer, is designated d and the main scan diameter, i.e., the luminous flux diameter exiting the main scanning means, is designated d', the conjugate magnification .beta. calculated by d/d' satisfies the conditional equation 1.2.ltoreq..beta..

摘要翻译： 扫描型图像观察光学系统具有用于发射光通量的光源; 主扫描装置，用于沿第一方向扫描光通量; 用于沿与第一方向不同的第二方向扫描光通量的副扫描装置; 以及用于将由两个扫描装置扫描的光束引导到观察者的瞳孔的目镜，其中主扫描装置经由目镜透镜与观察者的瞳孔位置具有共轭关系，并且当瞳孔直径 在观察者的瞳孔位置处的入射光通量的光束直径被指定为d，主扫描直径（即，将主扫描装置的光束直径）指定为d'，由d计算的共轭倍率β / d'满足条件方程式1.2