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公开(公告)号：US08098320B2
公开(公告)日：2012-01-17
申请号：US12266799
申请日：2008-11-07
申请人： Hiroshi Nomura , Atsumi Kaneko , Isao Okuda , Eijiroh Tada
发明人： Hiroshi Nomura , Atsumi Kaneko , Isao Okuda , Eijiroh Tada
IPC分类号： H04N5/225
CPC分类号： H04N5/2252 , H04N5/2257
摘要： An imaging device includes a housing including first and second photographing apertures which are open toward opposite directions; an image pickup device provided in the housing; a main optical system forming incident light from the first photographing aperture onto an imaging surface of the image pickup device; and an insertable optical element movable between an insertion position in an optical path of a main optical system and a removed position out of the optical path of the main optical system, the insertable optical element constituting at least a part of a sub-optical system which forms incident light from the second photographing aperture onto the imaging surface when at the insertion position. When the insertable optical element is positioned in the insertion position, the sub-optical axis is offset from the main optical axis toward the removed position of the insertable optical element in the inserting/removing direction.
摘要翻译： 一种成像装置包括：壳体，包括朝向相反方向开放的第一和第二拍摄孔; 设置在所述壳体中的图像拾取装置; 主光学系统，其将从所述第一拍摄孔径入射的光形成到所述图像拾取装置的成像表面上; 以及可插入光学元件，其可在主光学系统的光路中的插入位置与主光学系统的光路之间的去除位置之间移动，所述可插入光学元件构成副光学系统的至少一部分， 当在插入位置时，将来自第二拍摄孔的入射光形成到成像表面上。 当可插入光学元件位于插入位置时，副光轴在插入/移除方向上偏离主光轴朝向可插入光学元件的移除位置。
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公开(公告)号：US06954314B2
公开(公告)日：2005-10-11
申请号：US10769925
申请日：2004-02-03
申请人： Hiroshi Nomura , Yoshihiro Yamazaki , Isao Okuda
发明人： Hiroshi Nomura , Yoshihiro Yamazaki , Isao Okuda
CPC分类号： G02B7/10
摘要： A cam mechanism of a lens barrel includes first and second ring members; cam grooves having similar cam diagrams formed on one of the first and second ring members, and cam followers formed on the other thereof. Two groove/follower groups positioned at different positions in a circumferential direction. The cam grooves of one of the two groove/follower groups intersect cam grooves of another of the two groove/follower groups, respectively. One of the following is satisfied: (a) a distance in the optical-axis direction between front and rear groove/follower sets of one of the two groove/follower groups is different from that between the front and rear groove/follower sets of another of the two groove/follower groups, and (b) a distance in the circumferential direction between two front groove/follower sets of the two groove/follower groups is different from that between two the rear groove/follower sets of the two groove/follower groups.
摘要翻译： 镜筒的凸轮机构包括第一和第二环构件; 凸轮槽具有形成在第一和第二环构件中的一个上的类似的凸轮图形，以及在另一个上形成的凸轮从动件。 位于圆周方向不同位置的两个槽/从动组。 两个槽/从动件组中的一个的凸轮槽分别与两个槽/从动组中的另一个的凸轮槽相交。 满足以下要求之一：（a）两个槽/从动组中的一个的前后槽/从动组之间的光轴方向上的距离不同于另一个的前后槽/从动组之间的距离 两个槽/从动组之间的两个前槽/随动件组之间的距离与两个槽/随动件组的后槽/随动件组之间的距离不同， 团体
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公开(公告)号：US06888685B2
公开(公告)日：2005-05-03
申请号：US10771300
申请日：2004-02-05
申请人： Hiroshi Nomura , Yoshihiro Yamazaki , Isao Okuda
发明人： Hiroshi Nomura , Yoshihiro Yamazaki , Isao Okuda
CPC分类号： G02B7/102
摘要： A retracting mechanism of a zoom lens barrel includes first, second and third lens groups, wherein the first and third lens groups are integrally moved along an optical axis during variation of a focal length, and wherein at least one of the first and third lens groups is moved relative to the other to reduce a distance therebetween when the zoom lens barrel is fully retracted. The retracting mechanism includes first, second and third lens group moving rings; a cam mechanism for independently moving the first and second lens group moving rings; a second lens group support frame; an intermediate member fixed to the second lens group support frame; and a biasing device for biasing the third lens group moving ring away from the first lens group moving ring. The biasing device functions between the intermediate member and the third lens group moving ring.
摘要翻译： 变焦透镜镜筒的缩回机构包括第一透镜组和第三透镜组，其中第一透镜组和第三透镜组在焦距变化期间沿着光轴一体地移动，并且其中第一和第三透镜组中的至少一个 当变焦镜筒完全缩回时，它们相对于另一个移动以减小它们之间的距离。 回缩机构包括第一，第二和第三透镜组移动环; 用于独立地移动第一和第二透镜组移动环的凸轮机构; 第二透镜组支撑框架; 固定到所述第二透镜组支撑框架的中间构件; 以及用于使第三透镜组移动环偏离第一透镜组移动环的偏置装置。 偏置装置在中间构件和第三透镜组移动环之间起作用。
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公开(公告)号：US06853500B2
公开(公告)日：2005-02-08
申请号：US10776238
申请日：2004-02-12
申请人： Hiroshi Nomura , Yoshihiro Yamazaki , Isao Okuda
发明人： Hiroshi Nomura , Yoshihiro Yamazaki , Isao Okuda
CPC分类号： G02B7/102
摘要： A retracting mechanism of a zoom lens barrel includes a first through third lens group moving rings; a first linear guide projection formed on the first lens group moving ring to be engaged in a linear guide slot from outside the second lens group moving ring, the first linear guide projection including a hanging groove formed therealong, a rear end of the hanging groove being closed; a second linear guide projection formed on the third lens group moving ring to be engaged in the linear guide slot from inside the second lens group moving ring; and a linear moving key projecting from a front end of the second linear guide projection to be engaged in the hanging groove. A rear moving limit of the third lens group moving ring is determined by contact of the linear moving key with the closed end of the hanging groove.
摘要翻译： 变焦镜筒的回缩机构包括第一至第三透镜组移动环; 形成在第一透镜组移动环上的第一线性引导突起，其从第二透镜组移动环的外侧接合在线性引导槽中，第一直线引导突起包括沿其形成的悬挂槽，悬挂槽的后端为 关闭; 第二线性引导突起，形成在第三透镜组移动环上，以从第二透镜组移动环的内部接合在线性引导槽中; 以及从所述第二线性引导突起的前端伸出以与所述悬挂槽接合的线性移动键。 第三透镜组移动环的后移动极限是通过线性移动键与悬挂槽的封闭端的接触来确定的。
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公开(公告)号：US06665129B2
公开(公告)日：2003-12-16
申请号：US10101836
申请日：2002-03-21
IPC分类号： G02B1514
CPC分类号： G02B7/10
摘要： A lens barrel includes first and second lens groups guided in an optical axis direction without rotating about the optical axis, first and second support frames which support the first and second lens groups and include first and second cam followers, respectively; and a cam ring which is rotatable about the optical axis and includes a cam groove. The cam groove is formed as a continuous groove and includes first and second groove portions via which the first and second cam followers are guided to move the first and second lens groups, respectively. One of the first cam follower and the second cam follower enters one of the first groove portion and the second groove portion after passing through the other of the first groove portion and the second groove portion in a preparation stage of the lens barrel.
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公开(公告)号：US06661579B2
公开(公告)日：2003-12-09
申请号：US09772967
申请日：2001-01-31
申请人： Kiyoshi Araki , Taku Ito , Isao Okuda , Masahiro Oono , Moriyasu Kanai
发明人： Kiyoshi Araki , Taku Ito , Isao Okuda , Masahiro Oono , Moriyasu Kanai
IPC分类号： G02B2714
CPC分类号： G02B27/144 , G02B23/14
摘要： A beam splitter for a digital camera splits light passed through a photographing lens into beams directed to a CCD and a finder optical system. The beam splitter includes at least one optical element provided with a beam splitting surface that is inclined with respect to an optical axis of the photographing lens, and a multi-layer film including a plurality of layers of dielectric materials is formed on the beam splitting surface. The multi-layer film is configured such that the beam splitting surface exhibits a substantially constant reflectivity at least for visible light that is incident on the beam splitting surface at any incident angle within a predetermined range.
摘要翻译： 用于数字照相机的分束器将通过拍摄镜头的光分解成指向CCD和取景器光学系统的光束。 分束器包括至少一个光学元件，其设置有相对于拍摄镜头的光轴倾斜的分束表面，并且在分束表面上形成包括多层电介质材料的多层膜 。 多层膜被配置为使得分束表面至少对于在预定范围内以任何入射角入射在分束表面上的可见光呈现基本恒定的反射率。
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公开(公告)号：US06643074B2
公开(公告)日：2003-11-04
申请号：US10364334
申请日：2003-02-12
IPC分类号： G02B1514
CPC分类号： G02B7/102
摘要： A lens barrel includes a movable lens frame and a cam ring for moving the movable lens frame in a direction of an optical axis via a movement of the cam ring which is rotatable about the optical axis and movable in the direction thereof. The lens barrel includes a stationary ring provided around, and coaxial with, the cam ring; a rotatable ring provided around, and coaxial with, the stationary barrel, the rotatable ring being driven to rotate about the optical axis. A cam follower extends radially outwards from the cam ring, and a cam through-slot and a rotation transfer groove which are formed on the stationary ring and the rotatable ring, respectively, so that the cam follower is engaged in the cam through-slot and corresponding rotation transfer groove. The cam through-slot includes a linear and an inclined slot portion.
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公开(公告)号：US06624955B2
公开(公告)日：2003-09-23
申请号：US10364473
申请日：2003-02-12
IPC分类号： G02B702
CPC分类号： G02B7/102
摘要： Lens barrel has a lens supporting frame to which a frontmost lens group is fixed, a first moving frame to which the lens supporting frame is engaged, a second moving frame to which a rear lens group which is positioned behind the frontmost lens group is supported, and a support frame movement mechanism for moving the first and second moving frame between ready-to-photograph positions and accommodation positions behind the ready-to-photograph positions in an optical axis direction. The support frame movement mechanism makes the first moving frame and the second moving frame rotate about the optical axis relative to each other with the lens supporting frame and the second moving frame being in contact with each other when the first moving frame and the second moving frame are positioned in the vicinity of accommodation positions. One of the lens supporting frames includes a low-frictional portion provided on a contacting surface thereof.
摘要翻译： 透镜筒具有固定有最前面的透镜组的透镜支撑框架，与透镜支撑框架接合的第一移动框架，支撑位于最前面的透镜组后面的后透镜组的第二移动框架， 以及支撑框架移动机构，用于在第一和第二移动框架在准备照片位置和准备照片位置之后的光轴方向上的调节位置之间移动。 支撑框架移动机构使得当第一移动框架和第二移动框架在第一移动框架和第二移动框架相对于彼此接触时，第一移动框架和第二移动框架相对于彼此相对于彼此旋转， 位于住宿位置附近。 透镜支撑框架之一包括设置在其接触表面上的低摩擦部分。
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公开(公告)号：US5373437A
公开(公告)日：1994-12-13
申请号：US740726
申请日：1991-08-06
申请人： Tsuyoshi Itoh , Isao Okuda , Hiroshi Nishikawa , Toshiyuki Kase , Ryota Ogawa , Masahiro Oono , Koichi Maruyama , Makoto Iki
发明人： Tsuyoshi Itoh , Isao Okuda , Hiroshi Nishikawa , Toshiyuki Kase , Ryota Ogawa , Masahiro Oono , Koichi Maruyama , Makoto Iki
CPC分类号： G11B7/0909
摘要： A device in which an offset is added to a focusing error signal to control an objective lens and thereby reduce the generation of cross-talk when a beam spot that is converged on an optical disk crosses over a wall of a groove of a track of the disk. By adding the offset to the focusing error signal, the objective lens is moved out of focus with the disk. Thus, the shape of a beam spot formed on a photo sensor is changed from a circle to an ellipse. A condenser lens provided for forming the beam spot is moved along the optical axis thereof in such a manner that an output of a recorded signal of the disk is at a maximum value. As a result, the objective lens is brought into focus on the disk. Thereafter, the objective lens is focused on the disk in accordance with the focusing error signal to which the offset is added, while maintaining the beam spot in the shape of an ellipse.
摘要翻译： 一种装置，其中偏移量被加到聚焦误差信号上以控制物镜，从而当会聚在光盘上的束斑横跨在光盘的轨道的凹槽的壁上时减少串扰的产生 磁盘。 通过将偏移量加到聚焦误差信号上，物镜与光盘移出对焦。 因此，形成在光传感器上的光斑的形状从圆形变为椭圆形。 设置用于形成束斑的聚光透镜沿其光轴移动，使得盘的记录信号的输出处于最大值。 结果，将物镜聚焦在盘上。 此后，根据添加有偏移量的聚焦误差信号将物镜聚焦在光盘上，同时将光束点保持为椭圆形状。
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公开(公告)号：US07212352B2
公开(公告)日：2007-05-01
申请号：US11056245
申请日：2005-02-14
申请人： Hiroshi Nomura , Yoshihiro Yamazaki , Isao Okuda
发明人： Hiroshi Nomura , Yoshihiro Yamazaki , Isao Okuda
IPC分类号： G02B15/14
CPC分类号： G02B7/10
摘要： A lens-barrel cam mechanism includes first and second ring members; and cam grooves and cam followers formed on the first and second ring members. A single groove/follower set, including one cam groove and one cam follower, and a groove/follower group, including front and rear groove/follower sets at different positions in the optical axis direction, are at different positions single groove/follower set intersects those of the groove/follower group, and condition (a) and/or (b) are satisfied: (a) the cam groove of the single groove/follower set is wider than that of the groove/follower group, and (b) an interval between the cam groove of the single groove/follower set and that of the front groove/follower set and an interval between the cam groove of the single groove/follower set and that of the rear groove/follower set in the circumferential direction are different.
摘要翻译： 透镜镜筒凸轮机构包括第一和第二环构件; 以及形成在第一和第二环构件上的凸轮槽和凸轮从动件。 包括一个凸轮槽和一个凸轮从动件的单个槽/从动件组以及包括在光轴方向上的不同位置处的前后槽/从动件组的槽/从动组在不同位置处单个槽/从动件组相交 满足槽/从动组的条件和条件（a）和/或（b）：（a）单槽/跟随器组的凸轮槽比凹槽/从动组的凸轮槽宽，（b） 单槽/跟随器组的凸轮槽与前槽/随动件组的凸轮槽之间的间隔以及单槽/随动件组的凸轮槽与后槽/随动件在周向上的间隔之间的间隔是 不同。
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