公开(公告)号：US06559900B1

公开(公告)日：2003-05-06

申请号：US09481019

申请日：2000-01-11

申请人： Tatsuru Kanamori ,  Makoto Shinoda ,  Tohru Kawai ,  Kenji Sugihara

发明人： Tatsuru Kanamori ,  Makoto Shinoda ,  Tohru Kawai ,  Kenji Sugihara

IPC分类号： G02F11335

CPC分类号： G02B27/0961 ,  G02B27/0927 ,  G03B21/2073 ,  H04N9/3105 ,  H04N9/315

摘要： In a projection type display apparatus that projects an image by inputting a light beam emitted from a light source to a spatial light modulation device, it is intended to provide a lens array as a component of an illumination optical system that is low in manufacturing cost, provides high screen illuminance, and enables miniaturization of the projection type display apparatus. The dimension of the cell lenses of a second lens array is not uniform in one of the row direction and the column direction. Since the cell lenses are rectangular when viewed from the front side, the second lens array can be manufactured with a metal mold having a simple shape. The boundary lines between the cell lenses are straight and level differences at the boundary lines are small, sink marks of the second lens array are small, and the efficiency of utilization of light beams is high. Further, since the dimension of the cell lenses is not uniform in the other of the row direction and the column direction, the corresponding dimension of the second lens array can be reduced.

摘要翻译： 在通过将从光源发射的光束输入到空间光调制装置来投影图像的投影型显示装置中，旨在提供作为制造成本低的照明光学系统的部件的透镜阵列， 提供高屏幕照度，并且能够实现投影型显示装置的小型化。 第二透镜阵列的单元透镜的尺寸在行方向和列方向之一上不均匀。 由于当从前侧观察时，单元透镜是矩形的，所以可以用简单形状的金属模制造第二透镜阵列。 单元透镜之间的边界线是直的，边界线处的电平差小，第二透镜阵列的凹痕小，并且光束的利用效率高。 此外，由于单元透镜的尺寸在行方向和列方向上的另一个上不均匀，所以可以减小第二透镜阵列的相应尺寸。

公开(公告)号：US06365526B1

公开(公告)日：2002-04-02

申请号：US09687570

申请日：2000-10-13

申请人： Tatsuru Kanamori ,  Kenji Sugihara ,  Koji Kita ,  Makoto Shinoda

发明人： Tatsuru Kanamori ,  Kenji Sugihara ,  Koji Kita ,  Makoto Shinoda

IPC分类号： H01L21302

CPC分类号： H04N9/3105 ,  H04N5/74 ,  H04N5/7441 ,  H04N9/3167

摘要： An optical illumination system wherein an increased amount of light from a light source can reach a light valve, in which a luminous flux of the light source is irradiated upon a first lens array. The luminous flux having passed through the first lens array is introduced to the polarization conversion system provided immediately before a second lens array, and a luminous flux coming out from the polarization conversion system is introduced to the second lens array and then irradiated upon the light valve. The first lens array has an image forming position f which satisfies S

摘要翻译： 一种光学照明系统，其中来自光源的增加量的光可以到达其中光源的光通量照射在第一透镜阵列上的光阀。 已经通过第一透镜阵列的光通量被引入到紧邻第二透镜阵列之前提供的偏振转换系统，并且从偏振转换系统出来的光束被引入第二透镜阵列，然后照射到光阀 。 第一透镜阵列具有图像形成位置f，其满足其中L是由偏振转换系统从光源从光源分解的P偏振光和S偏振光的较长的光路长度的光程长度，S是 较短的一个光路的光路长度。

公开(公告)号：US06186629B1

公开(公告)日：2001-02-13

申请号：US09216547

申请日：1998-12-18

申请人： Atsushi Iwamura ,  Tatsuru Kanamori ,  Toru Kawai

发明人： Atsushi Iwamura ,  Tatsuru Kanamori ,  Toru Kawai

IPC分类号： G03B2100

CPC分类号： G03B21/10 ,  G03B21/2073 ,  G03B21/208 ,  G03B33/12 ,  H04N9/3105 ,  H04N9/3152 ,  H04N9/3167

摘要： An illumination optical device has the following elements. A first optical block includes a first lens array having a plurality of cell lenses each being approximately similar in shape to a light modulation device. A second optical block includes a second lens array having a plurality of cell lenses corresponding to the respective cell lenses of the first lens array of the first optical block and each being approximately similar in shape to the light modulation device, and a first converging component for converging beams that have passed through the second lens array toward the light modulation device. A second converging component is disposed in the vicinity of the light modulation device and serves to image beams that are output from the second optical block at a predetermined position. The cell lenses of the first lens array have different aspherical surfaces.

摘要翻译： 照明光学装置具有以下要素。 第一光学块包括具有多个单元透镜的第一透镜阵列，每个单元透镜的形状大致与光调制装置相似。 第二光学块包括第二透镜阵列，该第二透镜阵列具有与第一光学块的第一透镜阵列的各个单元透镜相对应的多个单元透镜，并且每个单元透镜的形状大致与光调制装置的形状近似相似;以及第一会聚部件， 已经通过第二透镜阵列的会聚光束朝向光调制装置。 第二会聚部件设置在光调制装置附近，用于将从第二光学块输出的光束成像在预定位置。 第一透镜阵列的单元透镜具有不同的非球面。

公开(公告)号：US5581400A

公开(公告)日：1996-12-03

申请号：US335352

申请日：1994-11-03

申请人： Hiroshi Takase ,  Tatsuru Kanamori ,  Masaki Imaizumi ,  Masaru Morooka

发明人： Hiroshi Takase ,  Tatsuru Kanamori ,  Masaki Imaizumi ,  Masaru Morooka

IPC分类号： G03B13/06 ,  G02B23/14 ,  G03B13/08 ,  G02B3/00 ,  G02B23/00

CPC分类号： G02B23/14

摘要： A finder optical system including an objective system, an image erecting system for erecting an object image formed by the objective system, and an eyepiece system for observing the object image. These systems are constructed of low-hygroscopic organic materials. Thus, the finder optical system can prevent transient variations of optical properties caused by hygroscopicity.

摘要翻译： 一种取景器光学系统，包括物镜系统，用于搭建由物镜系统形成的物体图像的图像搭建系统，以及用于观察物体图像的目镜系统。 这些系统由低吸湿性有机材料构成。 因此，取景器光学系统可以防止由吸湿性引起的光学特性的瞬态变化。

公开(公告)号：US5675440A

公开(公告)日：1997-10-07

申请号：US420785

申请日：1995-04-12

申请人： Tatsuru Kanamori

发明人： Tatsuru Kanamori

IPC分类号： G02B13/18 ,  G02B1/04 ,  G02B15/14 ,  G02B15/16 ,  G02B3/02 ,  G02B7/02

CPC分类号： G02B15/16

摘要： The invention provides a photographic lens which uses a low-hygroscopicity resin lens component as a constitutional component, is made compact without incurring some expense, and enables the optical properties to be kept stable to an atmospheric humidity change. The photographic lens is of the single-focus or varifocallength type that comprises a plurality of lens components among which at least one or more lens components are resin lens components, wherein at least one of the resin lens components is formed of a low-hygroscopicity resin. For instance, the invention is applicable to a single-focus lens comprising four lens components, i.e., a positive meniscus lens component convex on the object side, a double-concave lens component, a double-convex lens component and a negative meniscus lens component convex on the image surface side. If a polyolefin type resin that is a low-hygroscopicity resin is used for the fourth lens component of this single-focus lens, it is then possible to obtain a single-focus lens which is of small size, inexpensive and stable in optical properties to an atmospheric humidity change.

摘要翻译： 本发明提供了一种使用低吸湿性树脂透镜部件作为构成部件的照相镜片，其制造紧凑而不产生一些费用，并且使得光学性能能够保持与大气湿度变化的稳定性。 摄影镜头是单焦点或变焦镜头类型，其包括多个透镜部件，其中至少一个或多个透镜部件是树脂透镜部件，其中至少一个树脂透镜部件由低吸湿性树脂形成 。 例如，本发明可应用于包括四个透镜部件的单焦点透镜，即在物体侧凸出的正弯月透镜部件，双凹透镜部件，双凸透镜部件和负弯月形透镜部件 在图像表面侧凸起。 如果将该单焦点透镜的第四透镜部件使用作为低吸湿性树脂的聚烯烃型树脂，则可以获得小尺寸，廉价且光学性能稳定的单焦点透镜， 大气湿度变化。

公开(公告)号：US5570229A

公开(公告)日：1996-10-29

申请号：US260407

申请日：1994-06-14

申请人： Tatsuru Kanamori

发明人： Tatsuru Kanamori

IPC分类号： G02B15/16 ,  G02B23/14 ,  G02B25/00 ,  G03B13/12 ,  G02B23/00 ,  G03B13/08

CPC分类号： G03B13/12 ,  G02B23/14 ,  G02B23/145

摘要： A real image mode variable magnification finder optical system is provided with an objective lens having a positive refracting power and an eyepiece having a positive refracting power. The objective lens includes the first lens unit having a negative refracting power, the second lens unit having a positive refracting power which is movable for varying magnification, and the third lens unit having a positive refracting power which is movable for varying magnification. Moreover, the objective lens has the first reflecting surface for erecting an image on the entrance side of the region of a space provided on the object side of the second lens unit to move lenses when a change of magnification is made, and the second reflecting surface for erecting the image between the third lens unit and an intermediate imaging plane. Thus, the finder optical system brings about a reduction of thickness of a camera body, favorable correction for aberration, and cost reduction.

摘要翻译： 实像可变放大倍数取景器光学系统设有具有正折射率的物镜和具有正折射力的目镜。 该物镜包括具有负折射力的第一透镜单元，该第二透镜单元具有正的折射能力，该折射能力可移动以用于变化的倍率，并且该第三透镜单元具有正的折射能力，该折射能力可移动以用于变化的倍率。 此外，物镜具有第一反射面，用于在设置在第二透镜单元的物体侧的空间的区域的入射侧上竖立图像，以在进行变化时移动透镜，并且第二反射面 用于竖立第三透镜单元和中间成像平面之间的图像。 因此，取景器光学系统导致相机机身的厚度减小，有利的像差校正和成本降低。

公开(公告)号：US5325235A

公开(公告)日：1994-06-28

申请号：US835354

申请日：1992-02-14

申请人： Masaru Takashima ,  Tatsuru Kanamori

发明人： Masaru Takashima ,  Tatsuru Kanamori

IPC分类号： G02B13/18 ,  G02B15/163 ,  G02B15/20 ,  G02B15/14

CPC分类号： G02B15/163

摘要： The present invention relates to a compact zoom lens system having a long back focus and a zoom ratio of about 1.7, which comprises a first lens unit G1 having a positive focal length, a second lens unit G2 having a positive focal length and a third lens unit G3 having a negative focal length, said first, second and third lens units G1, G2 and G3 being all movable toward the object side during zooming from the wide angle to telephoto side such that the first and second lens units G1 and G2 are spaced away from each other, while the second and third lens units G2 and G3 are moved toward each other, and is characterized by conforming to the following conditional formula:0.34

摘要翻译： 本发明涉及具有大约1.7的长后焦距和变焦倍数的紧凑型变焦透镜系统，其包括具有正焦距的第一透镜单元G1，具有正焦距的第二透镜单元G2和第三透镜 具有负焦距的单元G3，在从广角向望远侧变焦期间，所述第一，第二和第三透镜单元G1，G2和G3都可以朝向物体侧移动，使得第一和第二透镜单元G1和G2间隔开 而第二和第三透镜单元G2和G3彼此移动，并且其特征在于符合以下条件公式：0.34

公开(公告)号：US5764421A

公开(公告)日：1998-06-09

申请号：US155739

申请日：1993-11-22

申请人： Seiji Shimizu ,  Tatsuru Kanamori

发明人： Seiji Shimizu ,  Tatsuru Kanamori

IPC分类号： G02B13/18 ,  G02B15/177 ,  G02B15/20 ,  G02B15/22 ,  G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens system having three lens units, that is, a negative lens unit, a positive lens unit, and a negative lens unit. The idea of floating system is introduced into the rear focusing system to minimize the degree of aberration fluctuation at a short object distance with a simple lens arrangement, thereby stabilizing the optical performance during focusing at a short object distance. The zoom lens system includes a 1-st lens unit (G1) having a negative refractive power, a 2-nd lens unit (G2) having a positive refractive power, and a 3-rd lens unit (G3) having a negative refractive power, and effects zooming from the wide end to the tele end by varying the spacing between each pair of adjacent lens units. With the 2-nd lens unit (G2) defined as a focusing lens unit, focusing is effected by varying the axial air spacing between a lens component (L.sub.F) of the 2-nd lens unit (G2) that is the closest to the image side and the remaining lens component (L.sub.F ').

摘要翻译： 具有三个透镜单元的变焦透镜系统，即负透镜单元，正透镜单元和负透镜单元。 将浮动系统的想法引入到后聚焦系统中，以简单的透镜布置来使物体距离短的像差波动程度最小化，从而在短对象距离聚焦期间稳定光学性能。 变焦透镜系统包括具有负折光力的第一透镜单元（G1），具有正折光力的第二透镜单元（G2）和具有负折光力的三维透镜单元（G3） ，并且通过改变每对相邻透镜单元之间的间距，从宽端到远端的效果变化。 通过将第二透镜单元（G2）定义为聚焦透镜单元，通过改变最靠近图像的第二透镜单元（G2）的透镜部件（LF）之间的轴向空气间隔来实现聚焦 侧和剩余的透镜部件（LF'）。

公开(公告)号：US5206675A

公开(公告)日：1993-04-27

申请号：US698843

申请日：1991-05-13

申请人： Yuji Miyauchi ,  Tatsuru Kanamori

发明人： Yuji Miyauchi ,  Tatsuru Kanamori

IPC分类号： G02B5/04 ,  G02B13/18 ,  G02B23/14 ,  G02B25/00 ,  G03B13/06

CPC分类号： G02B23/14 ,  G03B13/06

摘要： A real image mode finder optical system includes an objective lens, an image inverting optical member erecting an image of an object formed by the objective lens, and an eyepiece for observing the object image, in which the last reflecting surface of the image inverting optical member is constructed, as a prism, integral with the eyepiece. Whereby, the real image mode finder optical system has practically important advantages that the overall length can be reduced, with performance maintained, without any increase of the number of parts and the image inverting optical member can also be arranged at the rear end of the camera body.

摘要翻译： 实像图像取景器光学系统包括物镜，竖立由物镜形成的物体的图像的图像反转光学部件和用于观察物体图像的目镜，其中图像反转光学部件的最后反射表面 被构造为与目镜一体的棱镜。 因此，真实图像模式寻像器光学系统具有实际上重要的优点，可以降低总体长度，同时保持性能，而不增加部件数量，并且图像反转光学部件也可以布置在相机的后端 身体。

公开(公告)号：US5184252A

公开(公告)日：1993-02-02

申请号：US680548

申请日：1991-04-04

申请人： Yuji Miyauchi ,  Shinichi Yoshii ,  Tatsuru Kanamori

发明人： Yuji Miyauchi ,  Shinichi Yoshii ,  Tatsuru Kanamori

IPC分类号： G02B13/18 ,  G02B23/14

CPC分类号： G02B13/18 ,  G02B23/14

摘要： A finder optical system including an objective having a positive refractive power, an image erecting optical member for erecting an image formed by the objective, and an eyepiece for allowing observation of the image formed by the objective and erected by the image erecting optical member. The objective consists of a first positive lens component and a second negative lens component, or a single lens having a convex surface on the object side. This finder optical system has a simple composition, a compact external design and a relatively wide field angle.

摘要翻译： 包括具有正屈光力的物镜的取景器光学系统，用于架设由物镜形成的图像的图像直立光学构件以及用于允许观察由物镜形成并由图像竖立光学构件竖起的图像的目镜。 该目的包括第一正透镜部件和第二负透镜部件，或者在物体侧具有凸面的单透镜。 该取景器光学系统具有简单的组成，紧凑的外部设计和相对较宽的视场角。