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公开(公告)号：US06429975B1
公开(公告)日：2002-08-06
申请号：US09708765
申请日：2000-11-08
申请人： Yasumasa Sawai , Hisashi Tokumaru , Nobuo Mushiake
发明人： Yasumasa Sawai , Hisashi Tokumaru , Nobuo Mushiake
IPC分类号： G02B2714
CPC分类号： G02B27/145 , G02B27/149 , G02B27/283 , H04N9/3105 , H04N9/3167
摘要： An illumination optical system has a lens array for dividing light from a light source into a plurality of beams of light; a polarized light conversion optical system having a separator and converter, wherein the separator has a prism array comprising a plurality of right angle prisms arranged consecutively with the same surface being an inclined surface for reflecting the plurality of beams of light by the inclined surface and separating the plurality of reflected beams of light into first and second linearly polarized light beams having mutually intersecting polarization directions, and the converter converts the polarization direction of one of the first and second linearly polarized light beams to the ot her polarization direction, wherein the lens cell width of the lens array is greater than the prism array pitch of the prism array viewed from the incidence side of the plurality of beams of light.
摘要翻译： 照明光学系统具有用于将来自光源的光分成多束光的透镜阵列; 具有分离器和转换器的偏振光转换光学系统，其中所述隔膜具有棱镜阵列，所述棱镜阵列包括多个直角棱镜，所述多个直角棱镜以相同的表面连续布置，所述棱镜阵列是倾斜表面，用于通过所述倾斜表面反射所述多个光束， 所述多个反射光入射到具有相互交叉的偏振方向的第一和第二线偏振光束中，并且所述转换器将所述第一和第二线偏振光中的一个的偏振方向转换为所述偏振方向，其中所述透镜单元 透镜阵列的宽度大于从多个光束的入射侧观察的棱镜阵列的棱镜阵列间距。
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公开(公告)号：US5258802A
公开(公告)日：1993-11-02
申请号：US957637
申请日：1992-10-07
申请人： Tetsuya Arimoto , Minoru Kuwana , Kenji Ishibashi , Yasuaki Serita , Masayuki Ueyama , Hiroshi Ootsuka , Hisashi Tokumaru
发明人： Tetsuya Arimoto , Minoru Kuwana , Kenji Ishibashi , Yasuaki Serita , Masayuki Ueyama , Hiroshi Ootsuka , Hisashi Tokumaru
CPC分类号： G02B7/28
摘要： A camera system comprises an operation member provided in an interchangeable lens adapted to be manually operated; signal sending circuit for sending a signal in response to the manual operation of the operation member; and a controller provided in a camera body which is adapted to switch between an operative state where a predetermined operation is executed and a halt state where the controller is halted after completion of the predetermined operation. The controller switches from the halt state to the operative state in response to the signal from the signal sending circuit to execute the predetermined operation. According to the camera system, since the system controller in the camera body is actuated in response to the operation of the operation member on the lens side, a camera which can substantially instantaneously respond to a request on the lens side can be realized.
摘要翻译： 相机系统包括设置在可手动操作的可互换镜头中的操作构件; 信号发送电路，用于响应于操作构件的手动操作发送信号; 以及设置在照相机主体中的控制器，其适于在执行预定操作的操作状态与在完成预定操作之后控制器停止的停止状态之间切换。 响应于来自信号发送电路的信号，控制器从停止状态切换到操作状态，以执行预定的操作。 根据照相机系统，由于相机体中的系统控制器响应于镜头侧的操作构件的操作而被致动，所以可以实现能够基本上瞬时响应镜头侧的请求的照相机。
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公开(公告)号：US4846562A
公开(公告)日：1989-07-11
申请号：US148673
申请日：1988-01-26
申请人： Hisashi Tokumaru , Shuji Ogino
发明人： Hisashi Tokumaru , Shuji Ogino
IPC分类号： G02B15/20 , G02B15/16 , G02B15/177
CPC分类号： G02B15/177 , G02B15/16
摘要： A zoom lens system of a relatively high zoom ratio about 2.5 to 3.5 ranging to a wide field angle such as 76 degrees is disclosed. The zoom lens system comprises, from the object to the image side, a first movable negative lens group, a second movable positive lens group, a third stationary negative lens group and a fourth movable positive lens group with a first to third variable air spaces formed therebetween, respectively. And, the zoom lens system functions as an inverted telephoto type lens system in the shorter focal length range of the whole lens system by means of a combination of only the first lens group as a front negative group and the whole of the second to fourth lens groups as a rear positive group, while the zoom lens system functions as a telephoto type lens system in the longer focal length range of the whole lens system by means of a combination of the whole of the first and second lens groups as a front positive group and the whole of the third and fourth lens groups as a rear negative group.
摘要翻译： 公开了一种变焦范围变化范围为大角度（例如76度）的相对高变焦比的变焦透镜系统。 变焦透镜系统包括从物体到像侧，形成有第一至第三可变空气空间的第一可动负透镜组，第二可动正透镜组，第三固定负透镜组和第四可移动正透镜组 分别。 并且，变焦透镜系统在整个透镜系统的较短焦距范围内通过仅作为正负极组的第一透镜组和第二至第四透镜的整体而作为反相长焦型透镜系统 组作为后正组，而变焦透镜系统在整个透镜系统的较长焦距范围内用作长焦型透镜系统，通过将第一和第二透镜组的整体组合为正面正面组 并且整个第三和第四透镜组作为后负组。
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公开(公告)号：US4794416A
公开(公告)日：1988-12-27
申请号：US896391
申请日：1986-08-13
申请人： Hiromu Mukai , Tokuji Ishida , Hisashi Tokumaru
发明人： Hiromu Mukai , Tokuji Ishida , Hisashi Tokumaru
CPC分类号： G02B7/34
摘要： A focus detection apparatus for a camera comprising: a condensor lens being arranged close to or behind a predetermined focal plane of an objective lens of the camera. A pair of image separation members for separating the image of an object formed on the predetermined focal plane by use of light having been passed through the objective lens into two images which are arranged behind the condensor lens symmetrically with respect to the optical axis of the objective lens, wherein the correlation between the two images formed separately is measured in order to detect the focus condition of the objective lens. The image separating means including a mask for projecting the exit pupil of image separation member within an exit pupil of a cata-dioptric lens system as the objective lens.
摘要翻译： 一种用于照相机的焦点检测装置，包括：在相机的物镜的预定焦平面附近或之后布置的聚光镜。 一对图像分离部件，用于通过使用已经通过物镜的光将形成在预定焦平面上的物体的图像分离成相对于物镜的光轴对称设置在聚光镜上的两个图像 透镜，其中测量分开形成的两个图像之间的相关性，以便检测物镜的聚焦条件。 图像分离装置包括用于将图像分离部件的出射光瞳投影在作为物镜的光束透镜系统的出射光瞳内的掩模。
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公开(公告)号：US4449793A
公开(公告)日：1984-05-22
申请号：US288286
申请日：1981-07-30
IPC分类号： G02B13/04
CPC分类号： G02B13/06
摘要： An inverted telephoto type wide angle lens system is provided. The lens system comprises an aperture stop, a first lens group located at the object side of the aperture stop, and a second lens group located at the image side of the aperture stop, the second lens group including at least two movable focusing lens groups, whereby the focusing is practiced by only the movement of the focusing lens groups with the remaining lens elements in the lens system stationary.
摘要翻译： 提供了一种倒置长焦型广角镜头系统。 透镜系统包括孔径光阑，位于孔径光阑的物体侧的第一透镜组和位于孔径光阑的像侧的第二透镜组，第二透镜组包括至少两个可移动聚焦透镜组， 由此仅通过聚焦透镜组与透镜系统中剩余的透镜元件的移动来固定聚焦。
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公开(公告)号：US5640223A
公开(公告)日：1997-06-17
申请号：US579937
申请日：1995-12-28
申请人： Nobuyuki Taniguchi , Masaaki Nakai , Takanobu Omaki , Tokuji Ishida , Hisayuki Masumoto , Hisashi Tokumaru , Tsuneyo Metabi
发明人： Nobuyuki Taniguchi , Masaaki Nakai , Takanobu Omaki , Tokuji Ishida , Hisayuki Masumoto , Hisashi Tokumaru , Tsuneyo Metabi
摘要： A camera having a lens, whereby a power source in the camera is activated in response to a mechanical switch on the lens.
摘要翻译： 具有透镜的照相机，由此相机中的电源响应于透镜上的机械开关而被激活。
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公开(公告)号：US5153777A
公开(公告)日：1992-10-06
申请号：US622715
申请日：1990-12-05
申请人： Takashi Okada , Akira Fukushima , Hiromu Umeda , Hisashi Tokumaru , Junji Hashimura , Hisayuki Masumoto
发明人： Takashi Okada , Akira Fukushima , Hiromu Umeda , Hisashi Tokumaru , Junji Hashimura , Hisayuki Masumoto
IPC分类号： G02B13/18 , G02B15/16 , G02B15/173
CPC分类号： G02B15/173
摘要： A compact-size, light-weight, low-cost zoom lens system with high optical quality is achieved by using a ray restrictor placed at the most object side of the zoom lens system. In one type, the ray resistor shifts toward the object at a speed different from that of the most object side lens of the zoom lens system as the zoom lens system is zoomed toward the longest focal length, which effectively blocks harmful rays causing coma flare in the peripheral area. In another type, the aperture diameter of the ray restrictor varies according to a zooming operation. The ray restrictor of any type is especially effective when used in a zoom lens system composed of two lens groups. By introducing one or more aspherical surfaces satisfying a certain condition (or conditions) in the zoom lens system, various aberrations are further favorably corrected.
摘要翻译： 通过使用放置在变焦透镜系统的最物体侧的射线限制器来实现具有高光学质量的紧凑型，重量轻，低成本的变焦透镜系统。 在一种类型中，随着变焦透镜系统朝向最长焦距变焦，射线电阻以与变焦透镜系统的最物体侧透镜的速度不同的速度朝向物体移动，这有效地阻挡了导致昏迷的有害射线 周边地区。 在另一种类型中，光线限制器的孔径根据变焦操作而变化。 当用于由两个透镜组组成的变焦透镜系统中时，任何类型的光线限制器是特别有效的。 通过在变焦透镜系统中引入满足一定条件（或条件）的一个或多个非球面，可进一步有利地校正各种像差。
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公开(公告)号：US5105311A
公开(公告)日：1992-04-14
申请号：US574000
申请日：1990-08-28
申请人： Hisashi Tokumaru , Mitsuko Date
发明人： Hisashi Tokumaru , Mitsuko Date
IPC分类号： G02B13/18 , G02B15/173 , G02B15/20
CPC分类号： G02B15/173
摘要： A compact size zoom lens system ranging to a wide field angle and having a high zoom ratio of up to 10. The zone lens system is composed of, from the object to the image side, a positive first lens group, a negative second lens group, a positive third lens group and a negative fourth lens group, and fulfills the following conditions:0.15
摘要翻译： 一种紧凑的变焦透镜系统，其范围广泛的视野角，并且具有高达10的高变焦比。区域透镜系统由物体到像侧由正的第一透镜组，负的第二透镜组 ，正第三透镜组和负第四透镜组，并且满足以下条件：0.15
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公开(公告)号：US5084722A
公开(公告)日：1992-01-28
申请号：US626335
申请日：1990-12-13
CPC分类号： G03B7/20 , G02B7/346 , G03B7/091 , G03B7/09972
摘要： A focus condition detecting device which eliminates a wasteful operation thereof to obtain optical results of detection in a shortest period of time and wherein it can be discriminated correctly depending upon data read from a lens regarding an exit pupil of the lens whether or not detection of a focus condition is possible. The device comprises an optical means which forms a plurality of pairs of light images from beams of light from pairs of areas of an exit pupil plane of an interchangeable lens. Relative displacements between the light images are detected by a plurality of focus condition detecting means. Data regarding optical characteristics of the lens are read from the lens, and in accordance with the data thus read, those ones of the focus condition detecting means for which detection of a focus condition is possible are selected from an optical relationship between the optical means and the exit pupil of the lens. An in-focus condition is finally determined from focus condition signals produced from the selected focus condition detecting means.
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公开(公告)号：US4636040A
公开(公告)日：1987-01-13
申请号：US467433
申请日：1983-02-17
申请人： Hisashi Tokumaru
发明人： Hisashi Tokumaru
IPC分类号： G02B15/14 , G02B15/16 , G02B15/177 , G02B15/22
CPC分类号： G02B15/14
摘要： A zoom lens system with a focusing system other than a front group focusing system is provided. The lens system comprises a first lens group including at least two subgroups with a variable air space therebetween to be varied during zooming, and a focusing lens group located at the image side of the first lens group, the lateral magnification .beta..sub.F with respect to the focusing lens group being continuously variable during zooming with a condition,.vertline..beta..sub.F .vertline.>1always fulfilled so that .vertline..beta..sub.F .vertline. is increased in accordance with the increase of the focal length of the whole lens system. The focusing lens group may be divided into two or three sub-groups with a variable air space therebetween to be varied during zooming. Further, an additional lens group may be located at the image side of the focusing lens group.
摘要翻译： 提供了具有除前组聚焦系统之外的聚焦系统的变焦透镜系统。 透镜系统包括第一透镜组，其包括至少两个子组，其间具有可变空气空间以在变焦期间变化，以及位于第一透镜组的像侧的聚焦透镜组，相对于第一透镜组的侧向倍率βF 聚焦透镜组在变焦期间连续变化，条件为|βF |> 1始终满足，使得|βF|根据整个透镜系统的焦距的增加而增加。 聚焦透镜组可以被分成两个或三个子组，其间具有可变的空气空间，以在变焦期间变化。 此外，附加透镜组可以位于聚焦透镜组的像侧。
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