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1. 发明授权

US4862202A Magnification change-over device for camera 失效
标题翻译：相机放大转换装置
公开(公告)号：US4862202A
公开(公告)日：1989-08-29
申请号：US282947
申请日：1988-12-05
申请人： Takayuki Tsuboi , Isao Nakazawa , Yoshihiro Harunari , Yasuhisa Sato , Yasuyuki Yamada
发明人： Takayuki Tsuboi , Isao Nakazawa , Yoshihiro Harunari , Yasuhisa Sato , Yasuyuki Yamada
IPC分类号： G03B19/07
CPC分类号： G03B19/07
摘要： A magnification change-over device for a camera is provided with an incident optical path for the incidence of the light of an object to be photographed; a first optical path for guiding the object light incident on the incident optical path to a first aperture; a second optical path for guiding the object light incident on the incident optical path to a second aperture; changeover means for selection between the first and second optical paths; and optical means for differentiating the magnification of an image formed through the second aperture from that of an image formed through the first aperture.
摘要翻译：用于相机的倍率转换装置设置有入射光路，用于入射被拍摄物体的光; 用于将入射在入射光路上的物体光引导到第一孔的第一光路; 用于将入射在入射光路上的物体光引导到第二孔的第二光路; 用于在第一和第二光路之间进行选择的切换装置; 以及用于区分通过第二孔形成的图像的放大率与通过第一孔形成的图像的放大率的光学装置。

2. 发明授权

US4842395A Finder of variable magnification 失效
标题翻译： Finder的可变放大倍数
公开(公告)号：US4842395A
公开(公告)日：1989-06-27
申请号：US159471
申请日：1988-02-19
申请人： Yasuhisa Sato , Nozomu Kitagishi , Yasuyuki Yamada , Hiroki Nakayama , Kouji Oizumi
发明人： Yasuhisa Sato , Nozomu Kitagishi , Yasuyuki Yamada , Hiroki Nakayama , Kouji Oizumi
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。

3. 发明授权

US4751539A Variable power finder 失效
标题翻译：可变功率寻找器
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
IPC分类号： G02B15/04 , G02B23/14 , G03B13/12
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。

4. 发明授权

US4477155A Photographic lens of the partial focusing type 失效
标题翻译：部分聚焦型摄影镜头
公开(公告)号：US4477155A
公开(公告)日：1984-10-16
申请号：US448807
申请日：1982-12-10
申请人： Yasuhisa Sato , Hideo Yokota , Yasuyuki Yamada
发明人： Yasuhisa Sato , Hideo Yokota , Yasuyuki Yamada
IPC分类号： G02B9/34 , G02B9/60 , G02B13/18
CPC分类号： G02B9/34
摘要： A photographic lens having four components of characteristic forms with the 1st component counting from front being axially moved forward while the 2nd component is moved axially in a given relation to the 1st component as focusing is effected down to shorter object distances.
摘要翻译：具有四个特征形式分量的照相镜头，其中从前面计数的第一分量沿着轴向向前移动，同时第二分量以给定关系以给定关系向第一分量轴向移动，作为聚焦被实现为较短的物体距离。

5. 发明授权

US4715692A Varifocal type finder 失效
标题翻译：变焦型取景器
公开(公告)号：US4715692A
公开(公告)日：1987-12-29
申请号：US653966
申请日：1984-09-24
申请人： Yasuyuki Yamada , Kazuo Fujibayashi , Yasuhisa Sato , Hideo Yokota
发明人： Yasuyuki Yamada , Kazuo Fujibayashi , Yasuhisa Sato , Hideo Yokota
IPC分类号： G03B13/10 , G02B7/10 , G02B15/04 , G02B23/14 , G03B13/06 , G03B13/26 , G02B15/02
CPC分类号： G02B15/04 , G02B23/145
摘要： In the disclosed finder, an auxiliary lens for changing the magnification power is inserted into the space between an objective lens and an eyepiece. The size of the viewfield frame is simultaneously changed to maintain a constant percentage of the viewfield of the finder. The required rate of change of magnification power that the auxiliary lens must attain to leave the size of the viewfield frame of the finder unchanged can be reduced with the advantage of minimizing the bulk and size of the finder.
摘要翻译：在所公开的取景器中，用于改变放大倍率的辅助透镜被插入到物镜和目镜之间的空间中。视场框架的大小同时改变，以维持取景器视场的百分比不变。可以通过使取景器的体积和尺寸最小化的优点来减少辅助透镜必须获得的使取景器的视场框架尺寸保持不变的所需的倍率变化率。

6. 发明授权

US4679913A Vari-focal objective lens of short total length 失效
标题翻译：总焦距短焦点物镜
公开(公告)号：US4679913A
公开(公告)日：1987-07-14
申请号：US750698
申请日：1985-06-28
申请人： Yasuhisa Sato , Yasuyuki Yamada , Hiroki Nakayama , Kouji Oizumu
发明人： Yasuhisa Sato , Yasuyuki Yamada , Hiroki Nakayama , Kouji Oizumu
IPC分类号： G02B13/02 , G02B13/18 , G02B15/16 , G02B15/00
CPC分类号： G02B15/161
摘要： An objective lens comprising a front lens unit and a rear lens unit with the separation between the two lens units being varied to vary the focal length of the entire system, wherein the front lens unit has a positive refractive power and consists of a positive lens of strong convex curvature toward the front, a negative doublet lens of a negative lens and a positive lens cemented together in this order from the front, and a positive lens sub-unit, and the rear lens unit has a negative refractive power and comprises a positive lens and a negative lens. Particularly the double lens is so designed that the comatic aberration in the intermediate zone of the image frame is stabilized throughout the entire range of variation of the focal length, and the halo in the intermediate zone in the telephoto end is well corrected.
摘要翻译：一种包括前透镜单元和后透镜单元的物镜，其中两个透镜单元之间的间隔被改变以改变整个系统的焦距，其中前透镜单元具有正折射光焦度，并且由正透镜单元前凸的强凸曲率，负透镜的负双折射透镜和正透镜从前面依次粘接在一起，正透镜子单元和后透镜单元具有负折光力并且包括正透镜和负透镜。特别地，双透镜被设计成使得图像帧的中间区域中的彗形像差在焦距变化的整个变化范围内是稳定的，并且远摄端的中间区域中的晕圈被很好地校正。

7. 发明授权

US4596447A Conversion type varifocal lens system 失效
标题翻译：转换型变焦镜头系统
公开(公告)号：US4596447A
公开(公告)日：1986-06-24
申请号：US715590
申请日：1985-03-25
申请人： Yasuyuki Yamada , Yasuhisa Sato , Hideo Yokota
发明人： Yasuyuki Yamada , Yasuhisa Sato , Hideo Yokota
IPC分类号： G02B13/02 , G02B13/18 , G02B15/02 , G02B15/12 , G02B9/34
CPC分类号： G02B13/18 , G02B15/02
摘要： A conversion type varifocal lens system comprising a master lens which has a front assembly of positive power and a rear assembly of negative power, and a supplementary lens upon insertion into, or removal from, the space between the front and rear assemblies to change the focal length of the entire system.
摘要翻译：一种转换型变焦透镜系统，包括具有正功率的前组件和负功率的后组件的主镜头，以及当插入或移除前组件和后组件之间的空间时的辅助透镜，以改变焦点整个系统的长度。

8. 发明授权

US4830474A Variable magnification optical system 失效
标题翻译：变倍光学系统
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

9. 发明授权

US4702581A Flash device for camera 失效
标题翻译：照相机闪光灯
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
IPC分类号： G02B3/08 , G03B15/02 , G03B15/03 , G03B15/05
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

10. 发明授权

US4770508A Conversion lens releasably attached behind master lens 失效
标题翻译：可转接镜头可拆卸地安装在主镜头后面
公开(公告)号：US4770508A
公开(公告)日：1988-09-13
申请号：US898314
申请日：1986-08-20
申请人： Yasuyuki Yamada , Yasuhisa Sato , Hiroki Nakayama , Kouji Oizumi
发明人： Yasuyuki Yamada , Yasuhisa Sato , Hiroki Nakayama , Kouji Oizumi
IPC分类号： G02B13/18 , G02B15/08 , G02B15/12 , G02B15/02 , G02B9/10
CPC分类号： G02B15/08
摘要： A conversion lens for attachment to the rear of a master lens to increase the focal length of the entire system, includes a positive lens, and a negative lens positioned on the image side of the positive lens, wherein at least one of the lens surfaces of the positive lens and the negative lens is an aspherical surface.
摘要翻译：用于附接到主透镜后部以增加整个系统的焦距的转换透镜包括位于正透镜的像侧上的正透镜和负透镜，其中至少一个透镜表面正透镜和负透镜是非球面。

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