公开(公告)号：US4104652A

公开(公告)日：1978-08-01

申请号：US776246

申请日：1977-03-10

申请人： Kazuya Hosoe ,  Hideo Yokota

发明人： Kazuya Hosoe ,  Hideo Yokota

IPC分类号： G03B13/36 ,  G02B7/28 ,  G03B13/20 ,  G03B19/12 ,  G03B3/00

CPC分类号： G03B13/20 ,  G03B19/12

摘要： A single lens reflex camera having a sharp focus detecting arrangement with one or more photoelectric cell or cells of an outer zone of a light beam entering through a photo-taking lens wholly or in parts and responsive to transition of light distribution change past the point of sharp focus for producing an electrical output signal. The signal is used to provide a display in the field of view of the camera finder, thereby the accuracy of detection of a condition of sharp focus can be improved regardless of the otherwise insufficient total amount of incident light, as the distinctness of the image, or the relative position of the projection paths in an outer zone of the field is changed by a larger amount than that in the central zone. This arrangement may be embodied in such a manner that a reflex mirror which, in its viewing position, deflects the light from the photo-taking lens to a focusing screen glass is made light-permeable to half or full transmittance either in an outer annular zone or in two parts relatively spaced far from each other in symmetry with respect to the optical axis of the lens, and operates with an auxiliary mirror positioned behind the reflex mirror to deflect the light beam or beams passing through the reflex mirror out of the optical axis to the photoelectric cell or cells.

摘要翻译： 具有锐利焦点检测装置的单个透镜反射相机，其具有一个或多个光电单元或光束的外部区域的单元，其全部或部分地通过摄影透镜进入，并且响应于光分布变化的转变超过 用于产生电输出信号的重点。 该信号用于在摄像机的视野中提供显示器，从而可以提高锐利焦点的状态的检测精度，而不管入射光的总量如何不足，作为图像的清晰度， 或者在场外的外部区域中的投影路径的相对位置比中央区域中的更大的量改变。 这种布置可以以这样一种方式来实现：使反射镜在其观察位置上将来自摄影镜头的光偏转到聚焦屏幕玻璃，使得在外部环形区域 或相对于透镜的光轴对称地彼此相对间隔开的两个部分，并且用位于反射镜后面的辅助镜操作，以将穿过反射镜的光束或光束偏离光轴 到光电池或电池。

公开(公告)号：US3999192A

公开(公告)日：1976-12-21

申请号：US520134

申请日：1974-11-01

申请人： Kazuya Hosoe ,  Seiichi Matsumoto

发明人： Kazuya Hosoe ,  Seiichi Matsumoto

IPC分类号： G02B7/32 ,  G03B3/00

CPC分类号： G02B7/32

摘要： In the system disclosed, a cylindrical lens or mirror compresses the image of an object illuminated by a beam, and a movable mirror coupled to the lens barrel of a lens system reflects the compressed image onto the dividing line between two photosensors. The unbalance between the outputs of the photosensors indicates the defocus of the lens system. A servo responds to the unbalance to refocus the system by moving the lens barrel and the mirror until the photosensor outputs are balanced.

摘要翻译： 在所公开的系统中，圆柱形透镜或镜子压缩由光束照射的物体的图像，并且耦合到透镜系统的镜筒的可移动镜将压缩图像反射到两个光电传感器之间的分界线上。 光传感器的输出之间的不平衡表示透镜系统的散焦。 伺服器响应不平衡，通过移动镜筒和镜子重新聚焦系统，直到光电传感器输出平衡。

公开(公告)号：US3953729A

公开(公告)日：1976-04-27

申请号：US516572

申请日：1974-10-21

申请人： Kazuya Hosoe ,  Hiroshi Aizawa ,  Seiichi Matsumoto ,  Hideo Yokota

发明人： Kazuya Hosoe ,  Hiroshi Aizawa ,  Seiichi Matsumoto ,  Hideo Yokota

IPC分类号： G03B13/36 ,  G02B7/34 ,  G02B7/36 ,  G03B3/10

CPC分类号： G02B7/34

摘要： This invention relates to a system for automatic focus adjustment of an optical system particularly adapted for use in a photographic camera which utilizes non-linear resistance versus illumination response characteristics which are prominent in photoconductive cells such as cadmium sulfide and cadmium selenide cells. In one embodiment, a pair of photoconductive cells, one of which has a photoconductive surface having elongated side portions which contact the electrodes along the length of the elongated side portions and another cell which has an elongated photoconductive surface and shortened end portions and which contact the electrodes only at the shortened end portions, are arranged so that portions of an image-forming light beam entering through an objective of the camera are directed to the photoconductive surfaces on which similar real images of an object are formed. The objective includes at least one lens member movable for focusing associated with an automatic focus control mechanism operative in response to variation of an electrical output signal of the photoconductive cell assembly produced when the degree of sharpness of the image on each of the photoconductive surfaces is varied as the focussing member is moved for focussing purposes with respect to the photoconductive cell assembly.

摘要翻译： 本发明涉及一种特别适用于照相机的光学系统的自动聚焦调整系统，其利用在诸如硫化镉和硒化镉细胞的光导电池中突出的非线性电阻对照明响应特性。 在一个实施例中，一对感光电池，其中一个光电导表面具有细长的侧面部分，沿着细长侧部分的长度接触电极，另一个电池具有细长的光电导表面和缩短的端部， 仅在缩短端部的电极被布置成使得通过相机的物镜进入的图像形成光束的部分被引导到其上形成有相似的真实图像的光导表面。 该目的包括至少一个透镜构件，其可移动用于聚焦，该自动聚焦控制机构响应于当每个光电导表面上的图像的清晰度变化而产生的光导电池组件的电输出信号的变化而可操作 因为聚焦构件相对于光导电池组件移动以用于聚焦目的。

公开(公告)号：US3944324A

公开(公告)日：1976-03-16

申请号：US522288

申请日：1974-11-08

申请人： Akira Tajima ,  Ryusho Hirose ,  Kazuya Hosoe ,  Hiroshi Furukawa ,  Toshikazu Ichiyanagi

发明人： Akira Tajima ,  Ryusho Hirose ,  Kazuya Hosoe ,  Hiroshi Furukawa ,  Toshikazu Ichiyanagi

IPC分类号： G02B7/10 ,  G02B7/28 ,  G02B15/173 ,  G02B27/64 ,  G02B23/00

CPC分类号： G02B15/173 ,  G02B27/646 ,  G02B7/282

摘要： A zoom lens system comprising an afocal front lens assembly and an image forming rear lens assembly is provided with stabilized optical means arranged in the optical path between said front and rear lens assemblies. When zooming, the stabilized optical means is controlled in accordance with the variation of angular magnification of the front lens assembly and with the deviation of the housing incorporating the zoom lens system from an original line of sight. The image is thus stabilized at the focal plane thereof against such deviation by varying the deflecting angle of the exiting light axis from the stabilized optical means with respect to the entering light axis. In one embodiment of the present invention, the rear lens assembly includes one or more members movable for zooming in such a manner that the zooming operation of the front lens assembly is consecutively followed by the zooming operation of the rear lens assembly, or vice versa. The stabilized optical means is preferably constructed in the form of a variable optical wedge, or a combination of a swingable mirror and a fixed mirror.

摘要翻译： 包括无焦前透镜组件和成像后透镜组件的变焦透镜系统设置有布置在所述前透镜组件和后透镜组件之间的光路中的稳定的光学装置。 当变焦时，稳定的光学装置根据前透镜组件的角放大率的变化以及包含变焦透镜系统的壳体与原始视线的偏差来控制。 因此，通过相对于进入的光轴改变离开的光轴的偏转角度与稳定的光学装置的距离，使图像在其焦平面处被抵抗这种偏差而稳定。 在本发明的一个实施例中，后透镜组件包括一个或多个可移动的构件，用于变焦，使得前透镜组件的变焦操作连续地跟随后透镜组件的变焦操作，反之亦然。 稳定的光学装置优选地构造成可变光学楔形物的形式，或可摆动反射镜和固定镜的组合。