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：US06626542B2

公开(公告)日：2003-09-30

申请号：US10084973

申请日：2002-03-01

申请人： Tomoyuki Baba ,  Chikara Yamamoto

发明人： Tomoyuki Baba ,  Chikara Yamamoto

IPC分类号： G03B2128

CPC分类号： G03B21/28 ,  G02B17/0642

摘要： A bright reflection type projection optical system is used for projecting onto a screen under magnification a luminous flux carrying image information from a light valve driven by an image signal, while favorably correcting aberration. The reflection type projection optical system comprises, successively from the enlargement side, a first mirror having a positive power, a second mirror having a negative power, and a third mirror having a positive power.

公开(公告)号：US06493152B2

公开(公告)日：2002-12-10

申请号：US09962314

申请日：2001-09-26

申请人： Kimiaki Nakazawa ,  Tomoyuki Baba

发明人： Kimiaki Nakazawa ,  Tomoyuki Baba

IPC分类号： G02B1502

CPC分类号： G02B15/06

摘要： An afocal, wide converter lens is provided in order to shorten the focal length of a main lens, thereby shortening the projection distance that is needed to fully illuminate a given screen size when the wide converter lens is attached to the enlarging side of a main lens which functions as a projection lens of a projection apparatus. The wide converter lens is formed of, in sequential order in the direction from the enlarging side to the reducing side of the main lens, a lens element of positive refractive power, at least one lens element of negative refractive power, a positive meniscus lens element having its convex surface on the enlarging side, a negative meniscus lens element having its concave surface on the enlarging side, and a cemented lens of overall positive refractive power. Various conditions are satisfied in order that the wide converter lens does not degrade the optical performance of the main lens.

摘要翻译： 为了缩短主透镜的焦距，提供了一种无焦的宽转换镜头，从而缩短当宽转换镜头附着到主透镜的放大侧时完全照亮给定屏幕尺寸所需的投影距离 其用作投影设备的投影透镜。 宽转换器透镜在从主透镜的放大侧到还原侧的方向上依次顺序形成正屈光力透镜元件，至少一个具有负屈光力的透镜元件，正弯月透镜元件 其凸面在放大侧，具有其放大侧的凹面的负弯月形透镜元件和整体正屈光力的胶合透镜。 满足各种条件以便宽转换器透镜不会降低主透镜的光学性能。

公开(公告)号：US20120022327A1

公开(公告)日：2012-01-26

申请号：US13259192

申请日：2010-03-24

申请人： Tomoyuki Baba

发明人： Tomoyuki Baba

IPC分类号： A61B1/04

CPC分类号： G02B23/243 ,  A61B1/00096 ,  A61B1/00188 ,  A61B1/041 ,  G02B13/06

摘要： Widening an angle of view, and obtaining a clear image with no distortion by sufficiently correcting an aberration caused by widening the angle of view.A capsule endoscope 10 is provided with an imaging lens 20, capsule body 22, and a transparent cover 23. The capsule body 22 is formed hollow, and has an opening 22b at its end 22a. The imaging lens 20 is provided such that a part thereof is positioned inside the capsule body 22 and the rest is protruded from the opening 22b. The transparent cover 23 is formed into a dope shape, and is attached to the end 22a of the capsule body 22 to cover the imaging lens 20 protruded from the opening 22b. The inside of a patient's body is captured using the transparent cover 23 and the imaging lens 20 designed to satisfy the following condition: |fD|/fL≦70 where fD is a focal length of the transparent cover 23, and fL is a focal length of the imaging lens 20.

摘要翻译： 扩大视角，并且通过充分地校正由于扩大视角而引起的像差而获得没有失真的清晰图像。 胶囊型内窥镜10设置有摄像透镜20，胶囊主体22和透明罩23.胶囊主体22形成为中空，其端部22a具有开口部22b。 成像透镜20被设置为使得其一部分位于胶囊主体22内部，并且其余部分从开口22b突出。 透明盖23形成为胶版形状，并且附接到胶囊主体22的端部22a以覆盖从开口22b突出的成像透镜20。 使用设计为满足以下条件的透明盖23和成像透镜20来捕获患者身体的内部：| fD | / fL＆nlE; 70其中fD是透明盖23的焦距，fL是焦距 的成像透镜20。

公开(公告)号：US20060077564A1

公开(公告)日：2006-04-13

申请号：US11193484

申请日：2005-08-01

申请人： Tomoyuki Baba

发明人： Tomoyuki Baba

IPC分类号： G02B15/14

CPC分类号： G02B13/06 ,  G02B13/02 ,  G02B15/177

摘要： A zoom lens for a projection display device includes, in order from the long conjugate length side, a first lens group having negative refractive power and including at least one aspheric surface, a second lens group having positive refractive power and including at least two lens components, a third lens group, a fourth lens group having positive refractive power, and fifth and sixth lens groups. The second, third, fourth, and fifth lens groups move with coordinated movements during zooming. Preferably, the zoom lens satisfies three conditions related to the wide-angle and telephoto focal lengths and the focal lengths of the third and fifth lens groups, the fifth lens group has positive refractive power, and the first and fifth lens groups have particular lens element and lens component constructions. A projection display device uses the zoom lens.

摘要翻译： 用于投影显示装置的变焦透镜从长共轭长度侧依次包括具有负屈光力并且包括至少一个非球面的第一透镜组，具有正屈光力的第二透镜组，并且包括至少两个透镜部件 第三透镜组，具有正折光力的第四透镜组，以及第五透镜组和第六透镜组。 第二，第三，第四和第五透镜组在缩放期间以协调的运动移动。 优选地，变焦透镜满足与广角和远焦焦距以及第三透镜组和第五透镜组的焦距相关的三个条件，第五透镜组具有正折射力，并且第一和第五透镜组具有特定的透镜元件 和透镜组件结构。 投影显示装置使用变焦镜头。

公开(公告)号：US06542310B2

公开(公告)日：2003-04-01

申请号：US09938521

申请日：2001-08-27

申请人： Tomoyuki Baba

发明人： Tomoyuki Baba

IPC分类号： G02B1502

CPC分类号： G02B15/10

摘要： An afocal, wide converter lens is provided in order to shorten the focal length of a main lens, thereby shortening the projection distance that is needed to fully illuminate a given screen size when the wide converter lens is attached to the enlarging side of a main lens which is used as a projection lens of a projection apparatus. The wide converter lens is formed of, in sequential order in a direction from the enlarging side to the reducing side of the main lens: a first lens element of positive refractive power; at least one lens element of negative refractive power; a first cemented lens of negative refractive power that is formed of a negative lens element that is cemented to a positive lens element; and a second cemented lens of positive refractive power that is formed of a positive lens element that is cemented to a negative lens element. Various conditions are satisfied in order that the wide converter lens does not degrade the optical performance of the main lens.

公开(公告)号：US06449100B2

公开(公告)日：2002-09-10

申请号：US09794278

申请日：2001-02-28

申请人： Kimiaki Nakazawa ,  Tomoyuki Baba

发明人： Kimiaki Nakazawa ,  Tomoyuki Baba

IPC分类号： G02B1502

CPC分类号： G02B15/12

摘要： A teleconverter lens is disclosed, for attachment to the enlarging side of a projection lens, wherein aberrations generated by a negative focusing lens group positioned at the enlarging side of the projection lens are not made greater by the teleconverter lens. The teleconverter lens is substantially afocal and is formed of a front lens group having negative refractive power and a back lens group having positive refractive power. The front lens group is formed of two series of combined lenses, each combined lens being a lens element of positive refractive power and a lens element of negative refractive power that are joined. The back lens group is a single combined lens formed of a lens element of positive refractive power that is joined to a lens element of negative refractive power. The teleconverter lens is detachably attachable at its back side to the enlarging side of the projection lens.

摘要翻译： 公开了一种用于附接到投影透镜的放大侧的远摄转换器透镜，其中由位于投影透镜的放大侧的负聚焦透镜组产生的像差不被望远转换器透镜所增加。 远摄转换器透镜基本上无焦点，并且由具有负屈光力的前透镜组和具有正屈光力的后透镜组形成。 前透镜组由两个组合透镜组成，每个组合透镜是正屈光力的透镜元件和连接的负折光力透镜元件。 后透镜组是由正屈光力透镜元件形成的单一组合透镜，该透镜元件连接到负屈光力透镜元件。 远摄转换镜可在其后侧可拆卸地附接到投影透镜的放大侧。

公开(公告)号：US08542444B2

公开(公告)日：2013-09-24

申请号：US13257518

申请日：2010-03-24

申请人： Tomoyuki Baba ,  Hitoshi Miyano

发明人： Tomoyuki Baba ,  Hitoshi Miyano

IPC分类号： G02B3/00 ,  A61B1/05 ,  A61M39/02

CPC分类号： G02B3/00 ,  A61B1/00096 ,  A61B1/00188 ,  A61B1/041 ,  A61B1/05 ,  A61B1/0607 ,  A61B1/0676 ,  A61B1/0684 ,  A61M2039/0279 ,  G02B13/06 ,  G02B23/243

摘要： A capsule endoscope includes an image pickup optical system for imaging an object. The image pickup optical system satisfies a condition expressed by −5≦ΔZr/ΔZp≦5. Assuming ωmax is a maximum half angle of view, ΔZr is a difference between a position of a real image surface with respect to light flux of 2ωmax and that with respect to light flux of ωmax, and ΔZp is a difference between a paraxial image forming position of a first virtual object plane surface and that of a second virtual object plane surface. The first virtual object plane surface passes through an intersection point P1 of the object and principal rays of 2ωmax. The second virtual object plane surface passes through an intersection point of the object and principal rays of ωmax. The first and second virtual object planes are vertical to the optical axis.

摘要翻译： 胶囊型内窥镜包括用于对物体成像的摄像光学系统。 摄像光学系统满足由-5 @ DeltaZr / DeltaZp @ 5表示的条件。 假设omegamax是最大的一半视角，则DeltaZr是实像相对于2光束的光通量的位置和相对于omegaamax的光通量的差，DeltaZp是近轴成像位置 的第一虚拟物体平面和第二虚拟物平面的表面。 第一个虚拟物体平面通过对象的交点P1和2omegamax的主光线。 第二个虚拟物体平面通过物体与omegaam主光线的交点。 第一和第二虚拟物体平面垂直于光轴。

公开(公告)号：US08526112B2

公开(公告)日：2013-09-03

申请号：US13259192

申请日：2010-03-24

申请人： Tomoyuki Baba

发明人： Tomoyuki Baba

IPC分类号： G02B21/28

CPC分类号： G02B23/243 ,  A61B1/00096 ,  A61B1/00188 ,  A61B1/041 ,  G02B13/06

摘要： A capsule endoscope is provided with an imaging lens, capsule body, and a transparent cover. The capsule body is formed hollow, and has an opening at an end. The imaging lens is provided such that a part thereof is positioned inside the capsule body and the rest is protruded from the opening. The transparent cover is formed into a dope shape, and is attached to the end of the capsule body to cover the imaging lens protruded from the opening. The inside of a patient's body is captured using the transparent cover and the imaging lens designed to satisfy the following condition: |fD|/fL≦70 where fD is a focal length of the transparent cover, and fL is a focal length of the imaging lens.

摘要翻译： 胶囊型内窥镜设置有成像镜头，胶囊主体和透明罩。 胶囊体形成为中空，并且在端部具有开口。 成像透镜被设置成使得其一部分位于胶囊主体内部并且其余部分从开口突出。 该透明罩形成为涂料形状，并且附着到胶囊主体的端部以覆盖从开口突出的成像透镜。 使用透明盖和成像透镜来设计病人身体的内部，以满足以下条件：fD | / fL @ 70其中fD是透明盖的焦距，f L是成像的焦距 镜片。

公开(公告)号：US20090251676A1

公开(公告)日：2009-10-08

申请号：US11921406

申请日：2006-05-30

申请人： Kazuki Komori ,  Hiromi Ishikawa ,  Toshihiko Omori ,  Yoji Okazaki ,  Tomoyuki Baba

发明人： Kazuki Komori ,  Hiromi Ishikawa ,  Toshihiko Omori ,  Yoji Okazaki ,  Tomoyuki Baba

IPC分类号： G03B27/72

CPC分类号： G03F7/70291 ,  G03F7/70275

摘要： An exposure image is accurately projected. An exposure apparatus includes a light source for emitting exposure light, a DMD, which includes a plurality of two-dimensionally-arranged pixel portions, and a telecentric optical system for collimating principal rays of the exposure light. The telecentric optical system is positioned in an optical path of the exposure light that enters the DMD. The DMD performs, based on an image signal, spatial light modulation on exposure light, which has been emitted from the light source, and that has entered the plurality of pixel portions, for each of the plurality of pixel portions.

摘要翻译： 准确投影曝光图像。 曝光装置包括用于发射曝光光的光源，包括多个二维排列的像素部分的DMD和用于准直曝光光的主光线的远心光学系统。 远心光学系统位于进入DMD的曝光光的光路中。 DMD基于图像信号，对于多个像素部分中的每个像素部分，对从光源发射的并且已进入多个像素部分的曝光光进行空间光调制。