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    • 2. 发明授权
    • Focus condition detection device for cameras
    • 摄像机对焦条件检测装置
    • US4529287A
    • 1985-07-16
    • US639672
    • 1984-08-08
    • Toshihiko KarasakiHiromu MukaiKunio Kawamura
    • Toshihiko KarasakiHiromu MukaiKunio Kawamura
    • G02B7/28G02B7/34G03B3/00G01J1/36
    • G02B7/34
    • A focus condition detecting device of the type in which a pair of re-imaging lenses together with a condenser lens form a pair of re-images of an object image on a linesensor, such that the distance between the corresponding points of the re-images on the linesensor varies with the focus condition of a camera objective lens has an improved construction for positioning the linesensor with respect to the device with high accuracy. A field aperture mask having a field aperture is arranged optically behind a plane conjugate with the linesensor with respect to the re-imaging lenses and the condenser lens such that a pair of defocused images of the field aperture are formed on the linesensor by the re-imaging lenses and the condenser lens with respective one side blurred borders of the defocused images overlapping one another to make a V-shaped peak or dip of illuminance on a photocell of the linesensor located on the optical axis of the device, when the field aperture mask is uniformly illuminated. The device is formed into a module attachable on a camera.
    • 一种聚焦条件检测装置,其中一对重新成像透镜与聚光透镜一起形成一对在传感器上的对象图像的重新图像,使得重新图像的对应点之间的距离 在线传感器随着相机物镜的聚焦条件而变化具有改进的结构,用于高精度地相对于设备定位线传感器。 具有场孔径的场光阑掩模被光学地布置在相对于重新成像透镜和聚光透镜与线传感器共轭的平面上,使得通过重新形成在线传感器上的一对散焦图像, 成像透镜和聚光透镜,其中相对于彼此重叠的散焦图像的相对一侧的模糊边界使得位于设备的光轴上的线传感器的光电管上的V形峰值或照度倾斜,当场光圈掩模 均匀照明。 该装置形成为可附接在相机上的模块。
    • 3. 发明授权
    • Photographic film wind-up and shutter charge mechanism
    • 摄影胶卷卷帘和快门充电机构
    • US4222649A
    • 1980-09-16
    • US879109
    • 1978-02-17
    • Masatake NiwaNorihiro InoueKunio KawamuraNorio Beppu
    • Masatake NiwaNorihiro InoueKunio KawamuraNorio Beppu
    • G03B17/42G03B1/18
    • G03B17/425
    • An electrical drive which includes a motor for actuation of a film wind-up and shutter mechanism subsequent to exposure of a film frame and a mechanism for decoupling drive from the motor at the end of each wind-up and shutter charge action and also during this action if something occurs a fault preventing correct action of the film wind-up and shutter charge mechanism, whereby damage to the mechanism, the motor and film is prevented. The drive is correctly positioned with respect to a camera by a mechanism which also serves to provide electrical connection between a shutter control circuit and a drive control circuit, whereby the number of elements required to be precisely positioned with respect to the camera is less and manufacturing and assembly cost is reduced.
    • 一种电驱动器,其包括用于在胶片框架曝光之后致动胶卷卷绕和快门机构的电动机以及在每次卷绕和快门充电动作结束时将驱动器从电动机分离的机构,并且在此期间 如果发生故障发生的动作,防止膜卷起和快门充电机构的正确动作,从而防止机构,电动机和胶片的损坏。 驱动器通过机构正确定位,该机构还用于在快门控制电路和驱动控制电路之间提供电连接,由此相对于照相机需要精确定位的元件的数量较少,并且制造 组装成本降低。
    • 4. 发明授权
    • Camera shutter release mechanism
    • 相机快门释放机构
    • US4167317A
    • 1979-09-11
    • US843916
    • 1977-10-20
    • Kunio Kawamura
    • Kunio Kawamura
    • A61B1/04G03B17/38
    • G03B17/38
    • A shutter release mechanism is provided in a camera, which includes an electromagnetic circuit, in which an electric power source, an electromagnet for operating a shutter, and an actuating switch are operatively interconnected. Provided in the camera shutter release button is a coupling section, to which are selectively attachable the tip portion of a mechanical cable release and the tip portion of an electric remote control release having therein a manual operating switch. When the shutter release button is operated, or when the tip portion of the cable release is attached thereto and depressed, then a movable member provided internally of the camera is advanced so as to close the switch provided in the body of the camera, thereby mechanically operating the electro-magnetic release means. On the other hand, when the tip portion of the remote control release is attached and operated, then the electromagnetic release circuit is electrically operated by means of the manual switch provided internally of the remote control release, without mechanically operating the switch in the camera body.
    • 在相机中设置有快门释放机构,其包括电磁电路,其中电源,用于操作快门的电磁体和致动开关可操作地互连。 在相机快门释放按钮中设置有耦合部分,其可选择性地附接机械电缆释放件的末端部分和其中具有手动操作开关的电动遥控释放器的末端部分。 当快门释放按钮被操作时,或者当电缆释放件的末端部分附接到其上并被按压时,则提供在相机内部设置的可移动部件,以便关闭设置在照相机主体中的开关,从而机械地 操作电磁释放装置。 另一方面,当远程控制释放装置的尖端部分被安装和操作时,电磁释放电路通过设置在遥控释放器内部的手动开关电动操作,而无需机械操作照相机机身中的开关 。
    • 5. 发明授权
    • Indicating device for single lens reflex camera
    • 单反相机指示装置
    • US4150889A
    • 1979-04-24
    • US834971
    • 1977-09-20
    • Horoshi UedaKunio KawamuraKeiji Yamazaki
    • Horoshi UedaKunio KawamuraKeiji Yamazaki
    • G03B7/20G03B17/18G03B17/20G03B7/08
    • G03B17/20
    • An exposure indicating device for single lens reflex cameras which are selectively settable to automatic aperture control or automatic shutter speed control modes includes an exchangeable lens which has first and second information transmitting members, and a diaphragm setting member settable to one of a number of manually set aperture positions. The first transmitting member transmits to a first information receiving member, first information of the step-difference from a minimum to a preset f-number of the lens independently of the set position of the diaphragm setting member. The second transmitting member transmits to a second information receiving member, second information of a maximum f-number only when the diaphragm setting member is set to select a maximum f-number. A camera body is provided with a modes selecting member which switches the camera either into the automatic aperture control mode or into the automatic shutter speed control mode and enables observation of either an aperture scale or a shutter speed scale within a finder view field. The first information thus received enables automatic shutter speed control, and indication of an automatically controlled shutter speed prior to a stopping-down operation. The first and second information thus received are composed with each other, only in the automatic aperture control mode, to generate information of the minimum f-number of the lens, which enables indication of an f-number corresponding to an automatically controlled aperture prior to the stopping-down operation.
    • 可选地设置为自动光圈控制或自动快门速度控制模式的单镜头反光相机的曝光指示装置包括具有第一和第二信息传输部件的可更换镜头,以及可设置为多个手动设置 光圈位置。 第一发送部件独立于隔膜设定部件的设定位置,向第一信息接收部件发送步进差的最小信号到最小的预设f数。 第二发送部件只有在设置膜片设定部件来选择最大f数时才向第2信息接收部件发送最大f数的第2信息。 相机主体设置有将相机切换到自动光圈控制模式或自动快门速度控制模式的模式选择部件,并且能够观察取景器视野内的光圈标尺或快门速度刻度。 如此接收到的第一个信息可以进行自动快门速度控制,并在停机操作之前指示自动控制的快门速度。 如此接收到的第一和第二信息仅在自动光圈控制模式下相互组合,以生成最小f数的信息,其能够指示对应于自动控制孔径之前的f数 停机操作。