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99 条记录 (耗时 0.026 秒)

    Photographic camera with an electromagnetic control system
    31.
    发明授权
    Photographic camera with an electromagnetic control system 失效
    具有电磁控制系统的照相机

    公开(公告)号：US4099192A

    公开(公告)日：1978-07-04

    申请号：US764291

    申请日：1977-01-31

    申请人： Hiroshi Aizawa ,  Masanori Uchidoi ,  Hideaki Miyakawa ,  Masayoshi Yamamichi ,  Yukio Iura ,  Masahisa Fukui

    发明人： Hiroshi Aizawa ,  Masanori Uchidoi ,  Hideaki Miyakawa ,  Masayoshi Yamamichi ,  Yukio Iura ,  Masahisa Fukui

    IPC分类号： G03B7/083 ,  G03B9/58 ,  G03B17/42 ,  G03B9/08

    CPC分类号： G03B9/58 ,  G03B17/42 ,  G03B7/083

    摘要： A photographic camera having a magnetic actuating device associated with an electronic control device for initiating a release of one or more of the camera mechanisms from the cocked position thereof. In one embodiment of the invention, the magnetic actuating device comprises a single magnetic winding with a core material having a substantially rectangular hysteresis loop, and an armature of which the movement is controlled by the polarity of the magnetic winding and which is connected to spring-biased means for latching the mechanism in the cocked position. After the core is magnetized by applying a voltage to the magnetic winding for a relatively short period to hold the armature with the latching means in the cocked position against the force of the spring, the magnetic winding is energized by an output of the opposite polarity from the electronic control device causing the armature to move away from the core, whereby the release of the mechanism is initiated.

    摘要翻译： 一种具有与电子控制装置相关联的磁性致动装置的照相机，用于启动一个或多个照相机机构从其起始位置的释放。 在本发明的一个实施例中，磁致动装置包括具有大体上矩形磁滞回线的芯材的单个磁性绕组，以及电枢，其运动由磁性绕组的极性控制， 用于将机构锁定在被压缩位置的偏压装置。 在通过向磁性绕组施加电压相对较短的时间来使磁芯磁化之后，克服弹簧的力将锁定装置保持在锁定装置中的电枢，磁绕组由相反极性的输出激励 所述电子控制装置使所述电枢远离所述芯部移动，从而启动所述机构的释放。

    Automatic exposure control system for flash photography
    32.
    发明授权
    Automatic exposure control system for flash photography 失效
    用于闪光摄影的自动曝光控制系统

    公开(公告)号：US4083059A

    公开(公告)日：1978-04-04

    申请号：US717950

    申请日：1976-08-26

    申请人： Tokuichi Tsunekawa ,  Zenso Nakamura ,  Tetsuya Taguchi ,  Masanori Uchidoi ,  Hiroshi Aizawa ,  Takashi Uchiyama

    发明人： Tokuichi Tsunekawa ,  Zenso Nakamura ,  Tetsuya Taguchi ,  Masanori Uchidoi ,  Hiroshi Aizawa ,  Takashi Uchiyama

    IPC分类号： G03B15/05 ,  G03B15/03

    CPC分类号： G03B15/05 ,  G03B2215/05 ,  G03B2215/0514

    摘要： In a camera provided with a day-light exposure range and with a flash exposure range, an automatic exposure control system for controlling the iris of the camera in accordance with a computed exposure value and a preselected shutter time is associated with a flash exposure time range bracketing device in order to insure that the formation of a correct flash exposure aperture is effected with automatic selection of one of the bracketed exposure times despite an accidentally incorrect setting of the shutter dial of the camera which may be encountered particularly when the day-light exposure range is to be left for the flash exposure range without the necessary manipulation of the shutter dial therefor. The bracketing device of the present invention comprises three timing circuits in combination with a selector responsive to the position of the shutter dial for selecting either the first, or the second, or the third timing circuit for cooperation with an electronic switch controlling the period of actuation of the camera shutter when the shutter dial is set either within, or on the faster side of, or on the slower side of a possible flash exposure time range respectively, whereby the resultant actuation period is equal to either the shutter time preselected on the shutter dial, or the faster limit of, or the slower limit of the flash exposure time range respectively.

    Automatic exposure control system for single reflex camera
    35.
    发明授权
    Automatic exposure control system for single reflex camera 失效
    单反相机自动曝光控制系统

    公开(公告)号：US4203660A

    公开(公告)日：1980-05-20

    申请号：US904819

    申请日：1978-05-11

    申请人： Masanori Uchidoi ,  Tokuichi Tsunekawa ,  Hiroshi Aizawa ,  Tetsuya Taguchi ,  Tadashi Ito ,  Yoshiyuki Takishima

    发明人： Masanori Uchidoi ,  Tokuichi Tsunekawa ,  Hiroshi Aizawa ,  Tetsuya Taguchi ,  Tadashi Ito ,  Yoshiyuki Takishima

    IPC分类号： G03B7/085 ,  G03B19/20 ,  G03B7/00

    CPC分类号： G03B19/20 ,  G03B7/085

    摘要： A camera which permits change-over between different light measuring systems is disclosed. The camera includes a first light measuring element which measures light coming from an object to be photographed and an operational amplifier responsive to the element. A light measurement information producing circuit is included for producing a light measurement information signal for exposure computation. A change-over device is connected between the light measurement information producing circuit and the operational amplifier. The change-over device is arranged to be shiftable between a first position wherein the operational amplifier is connected to the light measurement information producing circuit and a second position wherein the operational amplifier is not so connected. An accessory device is attachable to the camera body. The accessory device includes a second light receiving element for measuring light from the object within a light measurement range different from that of the first light receiving element and another operational amplifier responsive thereto. A terminal is responsive to the signal from the latter operational amplifier. The terminal is disposed at the second position of the change-over device so that the signal from the latter operation is applied to the light measurement information producing circuit when the change-over device is in this position.

    摘要翻译： 公开了允许不同光测量系统之间切换的照相机。 相机包括测量来自被拍摄物体的光的第一光测量元件和响应于元件的运算放大器。 光测量信息产生电路包括用于产生用于曝光计算的光测量信息信号。 在光测量信息产生电路和运算放大器之间连接有切换装置。 转换装置被布置成可以在运算放大器连接到光测量信息产生电路的第一位置和运算放大器未被连接的第二位置之间移位。 附件装置可附接到照相机主体。 附属装置包括用于在与第一光接收元件不同的光测量范围内测量来自物体的光的第二光接收元件和对其响应的另一运算放大器。 终端响应于来自后者运算放大器的信号。 端子设置在转换装置的第二位置，使得当转换装置处于该位置时，来自后一操作的信号被施加到光测量信息产生电路。

    Camera system
    38.
    发明授权
    Camera system 失效
    相机系统

    公开(公告)号：US4079385A

    公开(公告)日：1978-03-14

    申请号：US614644

    申请日：1975-09-18

    申请人： Zenzo Nakamura ,  Tokuichi Tsunekawa ,  Tetsuya Taguchi ,  Masanori Uchidoi ,  Hiroshi Aizawa ,  Takashi Uchiyama

    发明人： Zenzo Nakamura ,  Tokuichi Tsunekawa ,  Tetsuya Taguchi ,  Masanori Uchidoi ,  Hiroshi Aizawa ,  Takashi Uchiyama

    IPC分类号： G03B7/00 ,  G03B7/081 ,  G03B7/16 ,  G03B7/08

    CPC分类号： G03B7/16 ,  G03B7/00 ,  G03B7/087

    摘要： A selector circuit interrupted by an electrical signal from an attachment selectively mounted on the camera body and is connected in the light receiving circuit as well as the exposure determining circuit provided in the camera. When the above mentioned unit is mounted on the camera the exposure determining circuit provided in the camera is automatically connected from the light receiving circuit to the output terminal of the unit by means of the selector circuit, so as to receive the exposure value signal on the unit and set the exposure value corresponding to the exposure value signal.

    摘要翻译： 由选择性地安装在相机主体上的附件的电信号中断的选择器电路，并连接在光接收电路中以及设置在相机中的曝光确定电路。 当将上述单元安装在相机上时，通过选择器电路将设置在相机中的曝光确定电路从光接收电路自动连接到单元的输出端，以便接收曝光值信号 并设置与曝光值信号对应的曝光值。