公开(公告)号：US20080080064A1

公开(公告)日：2008-04-03

申请号：US11984383

申请日：2007-11-16

申请人： Shoji Kogo ,  Masae Sato ,  Susumu Yamaguchi ,  Hiroshi Sato ,  Yuuichi Atarashi

发明人： Shoji Kogo ,  Masae Sato ,  Susumu Yamaguchi ,  Hiroshi Sato ,  Yuuichi Atarashi

IPC分类号： G02B15/14

CPC分类号： G02B3/14 ,  G02B26/004

摘要： In this invention, to provide a compact zoom lens having a small number of optical element groups to be driven and a simple moving mechanism, at least one of a plurality of optical element groups arranged in the lens system includes a refractive power variable element of a transmission type which has a compensation function to correct focus movement caused by zooming and a focus function to correct focus movement caused by a variation in inter-object distance. The refractive power variable element is a liquid optical element including a first liquid having a conductivity or a polarity and a second liquid which is not mixed with the first liquid, the first liquid and the second liquid being enclosed in a container fluid-tight so as to define an interface therebetween having a predetermined shape, the liquid optical element being arranged such that a refractive power thereof is adjusted by changing a curvature of the interface.

摘要翻译： 在本发明中，为了提供具有少量待驱动的光学元件组的简单变焦透镜和简单的移动机构，布置在透镜系统中的多个光学元件组中的至少一个包括折射力可变元件 具有用于校正由变焦引起的焦点移动的补偿功能的传播类型和用于校正由物体间距离变化引起的聚焦移动的聚焦功能。 折射力可变元件是包括具有导电性或极性的第一液体和不与第一液体混合的第二液体的液体光学元件，第一液体和第二液体被密封在容器中，以便流体密封 为了在其间限定具有预定形状的界面，液体光学元件被布置成通过改变界面的曲率来调节其屈光力。

公开(公告)号：US07573648B2

公开(公告)日：2009-08-11

申请号：US11984383

申请日：2007-11-16

申请人： Shoji Kogo ,  Masae Sato ,  Susumu Yamaguchi ,  Hiroshi Sato ,  Yuuichi Atarashi

发明人： Shoji Kogo ,  Masae Sato ,  Susumu Yamaguchi ,  Hiroshi Sato ,  Yuuichi Atarashi

IPC分类号： G02B15/14

CPC分类号： G02B3/14 ,  G02B26/004

摘要： In this invention, to provide a compact zoom lens having a small number of optical element groups to be driven and a simple moving mechanism, at least one of a plurality of optical element groups arranged in the lens system includes a refractive power variable element of a transmission type which has a compensation function to correct focus movement caused by zooming and a focus function to correct focus movement caused by a variation in inter-object distance. The refractive power variable element is a liquid optical element including a first liquid having a conductivity or a polarity and a second liquid which is not mixed with the first liquid, the first liquid and the second liquid being enclosed in a container fluid-tight so as to define an interface therebetween having a predetermined shape, the liquid optical element being arranged such that a refractive power thereof is adjusted by changing a curvature of the interface.

摘要翻译： 在本发明中，为了提供具有少量待驱动的光学元件组的简单变焦透镜和简单的移动机构，布置在透镜系统中的多个光学元件组中的至少一个包括折射力可变元件 具有用于校正由变焦引起的焦点移动的补偿功能的传播类型和用于校正由物体间距离变化引起的聚焦移动的聚焦功能。 折射力可变元件是包括具有导电性或极性的第一液体和不与第一液体混合的第二液体的液体光学元件，第一液体和第二液体被密封在容器中，以便流体密封 为了在其间限定具有预定形状的界面，液体光学元件被布置成通过改变界面的曲率来调节其屈光力。

公开(公告)号：US07317580B2

公开(公告)日：2008-01-08

申请号：US11077035

申请日：2005-03-11

申请人： Shoji Kogo ,  Masae Sato ,  Susumu Yamaguchi ,  Hiroshi Sato ,  Yuuichi Atarashi

发明人： Shoji Kogo ,  Masae Sato ,  Susumu Yamaguchi ,  Hiroshi Sato ,  Yuuichi Atarashi

IPC分类号： G02B3/12 ,  G02B15/14

CPC分类号： G02B3/14 ,  G02B26/004

摘要： In this invention, to provide a compact zoom lens having a small number of optical element groups to be driven and a simple moving mechanism, at least one of a plurality of optical element groups arranged in the lens system includes a refractive power variable element of a transmission type which has a compensation function to correct focus movement caused by zooming and a focus function to correct focus movement caused by a variation in inter-object distance. The refractive power variable element is a liquid optical element including a first liquid having a conductivity or a polarity and a second liquid which is not mixed with the first liquid, the first liquid and the second liquid being enclosed in a container fluid-tight so as to define an interface therebetween having a predetermined shape, the liquid optical element being arranged such that a refractive power thereof is adjusted by changing a curvature of the interface.

公开(公告)号：US20050200973A1

公开(公告)日：2005-09-15

申请号：US11077035

申请日：2005-03-11

申请人： Shoji Kogo ,  Masae Sato ,  Susumu Yamaguchi ,  Hiroshi Sato ,  Yuuichi Atarashi

发明人： Shoji Kogo ,  Masae Sato ,  Susumu Yamaguchi ,  Hiroshi Sato ,  Yuuichi Atarashi

IPC分类号： G02B15/14

CPC分类号： G02B3/14 ,  G02B26/004

摘要： In this invention, to provide a compact zoom lens having a small number of optical element groups to be driven and a simple moving mechanism, at least one of a plurality of optical element groups arranged in the lens system includes a refractive power variable element of a transmission type which has a compensation function to correct focus movement caused by zooming and a focus function to correct focus movement caused by a variation in inter-object distance. The refractive power variable element is a liquid optical element including a first liquid having a conductivity or a polarity and a second liquid which is not mixed with the first liquid, the first liquid and the second liquid being enclosed in a container fluid-tight so as to define an interface therebetween having a predetermined shape, the liquid optical element being arranged such that a refractive power thereof is adjusted by changing a curvature of the interface.

摘要翻译： 在本发明中，为了提供具有少量待驱动的光学元件组的简单变焦透镜和简单的移动机构，布置在透镜系统中的多个光学元件组中的至少一个包括折射力可变元件 具有用于校正由变焦引起的焦点移动的补偿功能的传播类型和用于校正由物体间距离变化引起的聚焦移动的聚焦功能。 折射力可变元件是包括具有导电性或极性的第一液体和不与第一液体混合的第二液体的液体光学元件，第一液体和第二液体被密封在容器中，以便流体密封 为了在其间限定具有预定形状的界面，液体光学元件被布置成通过改变界面的曲率来调节其屈光力。

公开(公告)号：US09025035B2

公开(公告)日：2015-05-05

申请号：US14004090

申请日：2012-02-22

申请人： Yasushi Yamamoto ,  Shoji Kogo

发明人： Yasushi Yamamoto ,  Shoji Kogo

IPC分类号： H04N5/228 ,  G02B15/14 ,  G02B27/64 ,  G02B15/17 ,  H04N5/222

CPC分类号： G02B15/14 ,  G02B13/18 ,  G02B15/17 ,  G02B27/646 ,  H04N5/222

摘要： Disclosed is a zoom lens that forms an optical image of an object on a light receiving surface of an imaging element converting the optical image to an electrical signal, having the diagonal length of 2Ymax, is constituted by a positive first group, a negative second group, a negative third group, an aperture, and a rear group having positive power as a whole, in order from an object side, and satisfies a conditional expression 1.5

摘要翻译： 公开了一种变焦透镜，其将成像元件的光接收表面上的物体的光学图像形成为将光学图像转换为对角线长度为2Ymax的电信号，由正的第一组，负的第二组 ，负的第三组，光圈，以及从物体侧起依次具有正的功率的后组，并且满足条件表达式1.5

公开(公告)号：US20120314291A1

公开(公告)日：2012-12-13

申请号：US13495822

申请日：2012-06-13

申请人： Shoji Kogo ,  Yasushi Yamamoto ,  Kana Inoue

发明人： Shoji Kogo ,  Yasushi Yamamoto ,  Kana Inoue

IPC分类号： G02B15/14 ,  G02B27/64

CPC分类号： G02B15/173 ,  G02B9/60 ,  G02B27/646

摘要： A large aperture zoom optical system and an image pickup apparatus have a five-lens-group arrangement of positive-negative-positive-negative-positive refractive powers. At the time of zooming, the fifth lens group is fixed, and at least the second lens group, the third lens group and the fourth lens group are moved. The third lens group for use in focusing is composed of a single lens element.

摘要翻译： 大光圈变焦光学系统和图像拾取装置具有正 - 负 - 正 - 正 - 正屈光力的五透镜组排列。 在变焦时，第五透镜组被固定，并且至少第二透镜组，第三透镜​​组和第四透镜组移动。 用于聚焦的第三透镜组由单个透镜元件组成。

公开(公告)号：US07193788B2

公开(公告)日：2007-03-20

申请号：US11245665

申请日：2005-10-06

申请人： Shoji Kogo

发明人： Shoji Kogo

IPC分类号： G02B15/14

CPC分类号： G02B15/173

摘要： A zoom lens includes: a first lens group with a positive refractive power; a second lens group with a negative refractive power; a third lens group with a positive refractive power; a fourth lens group with a positive refractive power, which are arranged in this order from an object side of the zoom lens. The first lens group and the third lens group are positioned statically. The second lens group is moved for zooming the zoom lens. The fourth lens group is moved for correcting a focus movement caused by the zooming and is further moved for focusing the zoom lens. The second lens group is provided with: a negative lens in a meniscus shape; a negative lens; a positive lens; and a negative lens, which are arranged in this order from an objective side of the zoom lens.

摘要翻译： 变焦透镜包括：具有正屈光力的第一透镜组; 具有负屈光力的第二透镜组; 具有正屈光力的第三透镜组; 具有正屈光力的第四透镜组，从变焦透镜的物体侧依次排列。 第一透镜组和第三透镜组静态地定位。 移动第二个镜头组可以变焦变焦镜头。 移动第四透镜组以校正由变焦引起的聚焦运动，并且进一步移动以聚焦变焦透镜。 第二透镜组设置有：弯月面形状的负透镜; 负透镜; 正镜片; 和负透镜，其从变焦透镜的物镜侧依次排列。

公开(公告)号：US07907318B2

公开(公告)日：2011-03-15

申请号：US12217388

申请日：2008-07-03

申请人： Shoji Kogo ,  Daisuke Tanahashi

发明人： Shoji Kogo ,  Daisuke Tanahashi

IPC分类号： G02B26/08

CPC分类号： G02B26/125 ,  G02B7/008 ,  G02B13/08

摘要： A scanning optical system includes: a light source for emitting a light flux with a wavelength λ; a polygon mirror comprising a plurality of reflection surfaces for deflecting the light flux emitted from the light source for scanning the scanning surface; a light-converging lens group in a two-element structure. The light-converging lens group is arranged between the polygon mirror and the scanning surface and forms a light spot on the scanning surface. In the scanning optical system, the wavelength λ is not larger than 600 nm, and the scanning optical system satisfies a conditional expression relating to a number of the reflection surfaces of the polygon mirror, a scanning width of the scanning optical system, and a focal length of the light-converging lens group in a main scanning direction.

摘要翻译： 扫描光学系统包括：用于发射波长为λ的光束的光源; 多面镜，包括用于偏转从光源发射的光束以扫描扫描表面的多个反射表面; 双元件结构的聚光透镜组。 聚光透镜组配置在多面镜与扫描面之间，在扫描面上形成光点。 在扫描光学系统中，波长λ不大于600nm，扫描光学系统满足与多面反射镜的反射面的数量，扫描光学系统的扫描宽度和焦点的条件表达式 聚光透镜组在主扫描方向上的长度。

公开(公告)号：US20130342716A1

公开(公告)日：2013-12-26

申请号：US14004090

申请日：2011-02-22

申请人： Yasushi Yamamoto ,  Shoji Kogo

发明人： Yasushi Yamamoto ,  Shoji Kogo

IPC分类号： G02B15/14 ,  G02B27/64

CPC分类号： G02B15/14 ,  G02B13/18 ,  G02B15/17 ,  G02B27/646 ,  H04N5/222

摘要： Disclosed is a zoom lens that forms an optical image of an object on a light receiving surface of an imaging element converting the optical image to an electrical signal, having the diagonal length of 2Y max, is constituted by a positive first group, a negative second group, a negative third group, an aperture, and a rear group having positive power as a whole, in order from an object side, and satisfies a conditional expression 1.5

摘要翻译： 公开了一种变焦透镜，其将成像元件的光接收表面上的物体的光学图像形成为将光学图像转换为对角线长度为2Y最大的电信号，由正的第一组，负的第二组 并且满足条件表达式1.5

公开(公告)号：US20090009844A1

公开(公告)日：2009-01-08

申请号：US12217388

申请日：2008-07-03

申请人： Shoji Kogo ,  Daisuke Tanahashi

发明人： Shoji Kogo ,  Daisuke Tanahashi

IPC分类号： G02B26/08

CPC分类号： G02B26/125 ,  G02B7/008 ,  G02B13/08

摘要： A scanning optical system includes: a light source for emitting a light flux with a wavelength λ; a polygon mirror comprising a plurality of reflection surfaces for deflecting the light flux emitted from the light source for scanning the scanning surface; a light-converging lens group in a two-element structure. The light-converging lens group is arranged between the polygon mirror and the scanning surface and forms a light spot on the scanning surface. In the scanning optical system, the wavelength λ is not larger than 600 nm, and the scanning optical system satisfies a conditional expression relating to a number of the reflection surfaces of the polygon mirror, a scanning width of the scanning optical system, and a focal length of the light-converging lens group in a main scanning direction.

摘要翻译： 扫描光学系统包括：用于发射波长λ的光通量的光源; 多面镜，包括用于偏转从光源发射的光束以扫描扫描表面的多个反射表面; 双元件结构的聚光透镜组。 聚光透镜组配置在多面镜与扫描面之间，在扫描面上形成光点。 在扫描光学系统中，波长λ不大于600nm，扫描光学系统满足与多面反射镜的反射面的数量，扫描光学系统的扫描宽度和焦点的条件表达式 聚光透镜组在主扫描方向上的长度。