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公开(公告)号：US4949107A
公开(公告)日：1990-08-14
申请号：US393774
申请日：1989-08-15
CPC分类号： G03B13/12 , G02B23/145
摘要： A camera having a photographic lens and an eyepiece lens for observing an image formed by the photographic lens, wherein when this camera is used as a telescope, the interval between the image and the eyepiece lens is shortened, while simultaneously changing the focal length of the eyepiece lens, so that the magnification of the finder is increased.
摘要翻译： 具有摄影镜头和用于观察由摄影镜头形成的图像的目镜的相机，其中当将该照相机用作望远镜时，图像与目镜之间的间隔缩短，同时改变摄像镜头的焦距 目镜，使得取景器的放大倍数增加。
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公开(公告)号：US5253005A
公开(公告)日：1993-10-12
申请号：US806786
申请日：1991-12-12
摘要： A small-sized camera in which while the light emerging from a photographic lens having an optical axis parallel with a photosensitive plane is conducted by first and second mirrors to the photosensitive plane to form a photographic system, the first or second mirror is turned around a predetermined axis to conduct the light to an eyepiece lens to form a finder system. And, a structure of construction for efficiently removing the stray light of this camera is disclosed.
摘要翻译： 一种小型照相机，其中当从具有与光敏平面平行的光轴的摄影镜头出射的光由第一和第二反射镜传导到感光平面以形成照相系统时，第一或第二镜转向 预定轴线将光线导向目镜，以形成取景器系统。 并且，公开了一种用于有效地去除该照相机的杂散光的结构的结构。
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公开(公告)号：US5270857A
公开(公告)日：1993-12-14
申请号：US261231
申请日：1988-10-24
申请人： Kouji Oizumi , Nozomu Kitagishi , Shoichi Yamzaki
发明人： Kouji Oizumi , Nozomu Kitagishi , Shoichi Yamzaki
IPC分类号： G02B27/64
CPC分类号： G02B27/646
摘要： An image stabilizing system includes a photographic lens device having a plurality of lens units, wherein for zooming at least one lens unit separation varies, a detecting circuit for detecting the jiggle of the system, and a drive device for driving at least one lens unit in a direction perpendicular to a photographic optical axis of the photographic lens device on the basis of an output of the detecting circuit to stabilize an image.
摘要翻译： 一种图像稳定系统包括具有多个透镜单元的摄影透镜装置，其中，用于变焦的至少一个透镜单元分离变化，用于检测系统的抖动的检测电路，以及用于驱动至少一个透镜单元的驱动装置 根据检测电路的输出，垂直于摄影透镜装置的摄影光轴的方向，以稳定图像。
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公开(公告)号：US4842395A
公开(公告)日：1989-06-27
申请号：US159471
申请日：1988-02-19
IPC分类号： G02B25/00 , G02B15/16 , G02B15/177 , G02B23/14 , G03B13/12
CPC分类号： G02B15/177 , G02B23/145
摘要： The disclosed variable magnification finder includes, from front to rear, a first lens unit of negative power, a second lens unit of positive power, a third lens unit of positive power, the first, second and third lens units constituting an objective lens of positive power, and an eyepiece of positive power. The first and second lens units form a finder image on a plane just in front of the third lens unit. The second lens unit is moved axially forward to increase the image magnification, while the shift of diopter of the finder is simultaneously compensated for by moving the first lens unit.
摘要翻译： 所公开的可变倍率取景器包括从前到后的负功率的第一透镜单元，正光焦度的第二透镜单元，正光焦度的第三透镜单元，构成正的物镜的第一，第二和第三透镜单元 权力和一个正面力量的目镜。 第一和第二透镜单元在刚好在第三透镜单元前面的平面上形成取景器图像。 第二透镜单元轴向移动以增加图像放大率，同时通过移动第一透镜单元来同时补偿取景器的屈光度偏移。
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公开(公告)号：US5305148A
公开(公告)日：1994-04-19
申请号：US3668
申请日：1993-01-12
申请人： Keiji Ikemori , Kouji Oizumi , Yoshinori Itoh
发明人： Keiji Ikemori , Kouji Oizumi , Yoshinori Itoh
CPC分类号： G02B9/12 , G02B15/177
摘要： A varifocal lens is disclosed, comprising, from front to rear, a first lens unit of negative power, a second lens unit of positive power, and a third lens unit of negative power, all these lenses being moved along a common optical axis when the focal length of the entire lens system varies, wherein all the lens units each are constructed with either one lens, or two lenses, the total number of lenses being limited to 3 or 4, while still maintaining good optical performance.
摘要翻译： 公开了一种变焦透镜，包括从前到后的负功率的第一透镜单元，正光焦度的第二透镜单元和负光焦度的第三透镜单元，当所述透镜沿着共同的光轴移动时， 整个透镜系统的焦距变化，其中所有透镜单元均由一个透镜或两个透镜构成，透镜的总数被限制为3或4，同时仍然保持良好的光学性能。
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公开(公告)号：US5125735A
公开(公告)日：1992-06-30
申请号：US558430
申请日：1990-07-27
申请人： Kouji Oizumi , Takashi Matsushita
发明人： Kouji Oizumi , Takashi Matsushita
CPC分类号： G01S7/4811 , G01C3/085 , G01S17/46 , G01S17/87 , G02B7/32 , G01S7/4814
摘要： A distance measuring device has a light source for emitting a plurality of light beams in a plurality of directions, and a light receiving lens having a plurality of optical axes for receiving the plurality of light beams reflected from objects in said plurality of directions. Light receiving apparatus is provided for receiving the reflected light beams passing through said light receiving lens and providing an output corresponding to distances to the object. The light receiving lens has (1) a central portion with a thickness (D), a focal length f.sub.a, and a refractive index .phi..sub.A, and (2) a second portion adjacent said central portion. Surfaces of said central and second portions closest to said light receiving apparatus comprising one spherical surface having a refractive power .phi..sub.R. the central and second portions being disposed to satisfy the following conditions:0.4 0.
摘要翻译： 距离测量装置具有用于沿多个方向发射多个光束的光源和具有多个光轴的光接收透镜，用于接收从所述多个方向上的物体反射的多个光束。 光接收装置被设置用于接收通过所述光接收透镜的反射光束并提供对应于到物体的距离的输出。 光接收透镜具有（1）具有厚度（D），焦距fa和折射率phi A的中心部分，以及（2）与所述中心部分相邻的第二部分。 最靠近所述光接收装置的所述中心部分和第二部分的表面包括具有折射光焦度的一个球形表面。中心部分和第二部分被设置成满足以下条件：0.4
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公开(公告)号：US4957356A
公开(公告)日：1990-09-18
申请号：US180451
申请日：1988-04-12
申请人： Kouji Oizumi , Takashi Matsushita
发明人： Kouji Oizumi , Takashi Matsushita
CPC分类号： G02B17/045 , G02B23/14 , G03B13/06 , G03B2213/025
摘要： A finder device capable of forming an erecting non-reverse image to be observed at either of the waist level and the eye level, wherein when used as the waist-level finder, the photographer, while taking his eye at a good distance from the finder, can observe the image of an object to be photographed.
摘要翻译： 能够形成要在腰部水平和眼睛水平中任一个观察到的竖立非反转图像的取景器装置，其中当用作腰围取景器时，摄影者在与取景器距离较远的距离 ，可以观察要拍摄的物体的图像。
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公开(公告)号：US4751539A
公开(公告)日：1988-06-14
申请号：US080570
申请日：1987-07-31
申请人： Yasuyuki Yamada , Yasuhisa Sato , Hiroki Nakayama , Kouji Oizumi
发明人： Yasuyuki Yamada , Yasuhisa Sato , Hiroki Nakayama , Kouji Oizumi
CPC分类号： G02B15/04 , G02B23/14 , G02B23/145
摘要： A variable power finder having an objective lens of positive refracting power comprising a first lens unit of positive refracting power movable along an optical axis and a second lens unit releasably attached to the first lens unit in axial alignment, wherein a real image to be observed is formed by the objective lens.
摘要翻译： 一种具有正折射率的物镜的可变功率寻找器，包括沿着光轴可移动的正折射力的第一透镜单元和可轴向地连接到第一透镜单元的第二透镜单元，其中要观察的实像是 由物镜形成。
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公开(公告)号：US4830474A
公开(公告)日：1989-05-16
申请号：US934914
申请日：1986-11-25
申请人： Hiroki Nakayama , Yasuhisa Sato , Kouji Oizumi , Yasuyuki Yamada
发明人： Hiroki Nakayama , Yasuhisa Sato , Kouji Oizumi , Yasuyuki Yamada
IPC分类号： G02B15/10
CPC分类号： G02B15/10
摘要： A changeover type variable magnification optical system whose focal length is changed by locating an auxiliary lens on the image side of a master lens assembly. The system satisfies following inequalities of:0.2
摘要翻译： 通过将辅助透镜定位在主镜头组件的像侧上来改变其焦距的转换型可变放大倍数光学系统。 该系统满足以下不等式：0.2
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公开(公告)号：US4702581A
公开(公告)日：1987-10-27
申请号：US814629
申请日：1985-12-30
申请人： Yasuyuki Yamada , Yasuhisa Sato , Hiroki Nakayama , Kouji Oizumi
发明人： Yasuyuki Yamada , Yasuhisa Sato , Hiroki Nakayama , Kouji Oizumi
CPC分类号： G03B15/03 , G03B2215/0525
摘要： A flash device for a camera having a light emitting window of rectangular shape oriented so that the long side of the window is nearly perpendicular to a long side of the film format in the camera. An optical panel in the light emitting window is constructed in such a way as to satisfy the following conditions:0.5
摘要翻译： 一种用于相机的闪光装置，具有取向为矩形的发光窗，使得窗的长边几乎垂直于相机中的胶片格式的长边。 光发射窗中的光学面板以满足以下条件的方式构成：0.5
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