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公开(公告)号：US5291237A
公开(公告)日：1994-03-01
申请号：US874285
申请日：1992-04-24
申请人： Shigeru Tagami , Tomihiko Aoyama , Teruyo Hayakawa , Hiroshi Yamazaki , Yuji Nakajima , Seiichi Imano
发明人： Shigeru Tagami , Tomihiko Aoyama , Teruyo Hayakawa , Hiroshi Yamazaki , Yuji Nakajima , Seiichi Imano
摘要： A camera has a shutter which may also constitute a diaphragm. In a multi-flash mode the shutter selectively has a maximum aperture at an onset or at the end of the time base. The flash occurs in synchronism with a shutter waveform shaped by this aperture area and a time base element. In a second embodiment, a second diaphragm setting circuit is provided, in diaphragm priority photography, for computing a measurement value of a distance to a subject and a second diaphragm value from the guide number during an emission of flashed light. The diaphragm is set to the computed second diaphragm value, ad an electronic flash is energized with a desired aperture area. The diaphragm is set to an initial value to effect the photography at a time other than during the emission of flashed light. A timing circuit may be provided for setting the diaphragm to the second diaphragm value. The aperture area may be increased or decreased for diaphragm matching with the quantity of flashed light and the distance to the subject during diaphragm priority flash photography.
摘要翻译： 相机具有也可以构成隔膜的快门。 在多闪光模式中，快门在时基的开始或结束时选择性地具有最大光圈。 闪光与由该开口区域和时基元件形成的快门波形同步地发生。 在第二实施例中，在隔膜优先摄影中设置第二隔膜设置电路，用于在闪光灯发射期间计算距离被摄体的距离的测量值和来自引导号的第二光阑值。 光阑被设定为计算出的第二光阑值，电子闪光灯被所需的光圈区域通电。 隔膜被设置为初始值，以在除了发光之前的时间进行摄影。 可以提供定时电路用于将隔膜设置到第二隔膜值。 在光圈优先闪光摄影期间，可以增加或减少光圈匹配与闪光量和被摄体距离的光圈面积。
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公开(公告)号：US5371691A
公开(公告)日：1994-12-06
申请号：US712118
申请日：1991-06-07
申请人： Yoichi Seki , Tomihiko Aoyama , Michio Kawai , Hiroyuki Saito , Kanji Ito , Mitsuhiro Kakuta
发明人： Yoichi Seki , Tomihiko Aoyama , Michio Kawai , Hiroyuki Saito , Kanji Ito , Mitsuhiro Kakuta
摘要： A photographic camera has a rectilinear approximate operation circuit for calculating characteristic correction data for correcting errors in the operational characteristics of the camera. Predetermined theoretical characteristic data dependent on operational characteristics of the camera are stored. Measured data corresponding to predetermined measured values are stored as individually measured characteristic data in a nonvolatile EEPROM so that the stored measured data can be easily changed by rewriting the EEPROM. An object signal is generated depending on an object to be photographed. The rectilinear approximate operational circuit calculates characteristic correction data from the object signal, the theoretical characteristic data and the measured characteristic data, which is then used for correcting errors in the operation characteristics of the camera.
摘要翻译： 照相机具有用于计算用于校正照相机的操作特性中的误差的特征校正数据的直线近似运算电路。 存储取决于相机操作特性的预定理论特征数据。 与预定测量值相对应的测量数据作为单独测量的特性数据存储在非易失性EEPROM中，使得可以通过重写EEPROM容易地改变存储的测量数据。 根据要拍摄的物体产生物体信号。 直线近似运算电路根据目标信号，理论特性数据和测量特征数据计算特征校正数据，然后将其用于校正摄像机的运行特性中的误差。
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公开(公告)号：US5614984A
公开(公告)日：1997-03-25
申请号：US505518
申请日：1995-04-19
申请人： Yoichi Seki , Tomihiko Aoyama , Michio Kawai , Akira Ito
发明人： Yoichi Seki , Tomihiko Aoyama , Michio Kawai , Akira Ito
摘要： A distance measuring device for ensuring accuracy of the positional relationship between the optical axis of a light-receiving lens and the optical center of a light-receiving element obtains distance information data by measuring the distance to a target plate which is 1 meter from the distance measuring device. If the distance information is not smaller than 1.625 meter, a switch is connected to one pair of terminals and the difference between reference output data stored in a control circuit and output data of an AF-IC obtained when the distance to the target plate is measured with the switch connected to the pair of terminals is calculated and stored in a memory circuit. When the value of the distance information data is not greater than 0.375 meter, the switch is connected to another pair of terminals, and output deviation data is stored in the memory circuit 11 in the same way. When the value of the distance information value is smaller than 1.625 meter and greater than 0.375 meter, the switch is connected to a further pair of terminals, and output deviation data is stored in the memory circuit in the same way.
摘要翻译： 用于确保光接收透镜的光轴与光接收元件的光中心之间的位置关系的精确度的距离测量装置通过测量距离距离为1米的目标板的距离来获得距离信息数据 测量工具。 如果距离信息不小于1.625米，则开关连接到一对端子，并且存储在控制电路中的参考输出数据与当到目标板的距离被测量时获得的AF-IC的输出数据之间的差异 连接到一对终端的开关被计算并存储在存储器电路中。 当距离信息数据的值不大于0.375米时，开关连接到另一对端子，并且输出偏差数据以相同的方式存储在存储器电路11中。 当距离信息值小于1.625米且大于0.375米时，开关与另一对端子连接，输出偏差数据以相同的方式存储在存储器电路中。
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公开(公告)号：US5258800A
公开(公告)日：1993-11-02
申请号：US957338
申请日：1992-10-06
申请人： Yoichi Seki , Kazuo Akimoto , Tomihiko Aoyama
发明人： Yoichi Seki , Kazuo Akimoto , Tomihiko Aoyama
CPC分类号： G02B7/28
摘要： In the distance measuring device for an automatic focusing camera, the reliability is improved by preventing the device from electric noise, and the structure is simplified so as to provide interchangeability to reduce the production cost. A light receiving lens 2 and a multilayer printed circuit board 3 are mounted on a holder 1. A potting frame 6 is provided on the lens-facing side surface of the printed circuit board 3. An optical sensor 4 and an IC 5 are both mounted within a space 3 enclosed by the potting frame 6, and sealed by a protecting resin 7 simultaneously. Further, resistors S and capacitors C of a distance measuring circuit are mounted on the opposite surface of the printed circuit board 3. Both the surfaces of the printed circuit board 3 are connected to each other via a through hole to construct the distance measuring circuit. The protecting resin 7 transmits light having specified wave lengths. The light reflected from a subject to be photographed is received by the optical sensor 4 after passing through the protecting resin, and a distance to the subject is calculated on the basis of the received light data.
摘要翻译： 在自动聚焦照相机的距离测量装置中，通过防止装置的电噪声来提高可靠性，并且简化了结构，从而提供可互换性以降低生产成本。 光接收透镜2和多层印刷电路板3安装在保持器1上。在印刷电路板3的面向透镜的侧表面上设置灌封框架6.光学传感器4和IC 5都安装 在由灌封框架6封闭的空间3内，同时由保护树脂7密封。 此外，距离测量电路的电阻器S和电容器C安装在印刷电路板3的相对表面上。印刷电路板3的两个表面通过通孔彼此连接，构成距离测量电路。 保护树脂7透射具有特定波长的光。 从被摄体被反射的光在通过保护树脂后被光学传感器4接收，并且基于接收到的光数据计算与被摄体的距离。
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