Camera having an automatic exposure control means
    1.
    发明授权
    Camera having an automatic exposure control means 失效
    相机具有自动曝光控制装置

    公开(公告)号:US4268136A

    公开(公告)日:1981-05-19

    申请号:US924009

    申请日:1978-07-12

    IPC分类号: G03B7/00 G03B7/097 G03B7/091

    CPC分类号: G03B7/097

    摘要: A camera in which the automatic exposure control is conducted on the basis of measured light information obtained in accordance with the illumination of an object to be photographed. In the camera, a type of exposure control information that is predetermined irrespective of measured light information is supplied as first exposure control information into an exposure control circuit including an analog to digital converter. Subsequently, measured light information obtained through the operation of a shutter release of the camera is supplied thereinto as second exposure control information.

    摘要翻译: 基于根据被拍照物体的照度获得的测量光信息进行自动曝光控制的照相机。 在相机中,将与测量的光信息无关的预定类型的曝光控制信息作为第一曝光控制信息提供给包括模数转换器的曝光控制电路。 随后,通过操作相机的快门释放获得的测量光信息作为第二曝光控制信息被提供给其中。

    Battery level warning device
    2.
    发明授权
    Battery level warning device 失效
    电池电量报警装置

    公开(公告)号:US4269494A

    公开(公告)日:1981-05-26

    申请号:US924010

    申请日:1978-07-12

    CPC分类号: G01R19/16542 G01R31/3682

    摘要: Battery voltage level warning is made according to the output signals of two detecting circuits. A first detecting circuit detects the power supply voltage having lowered to a value somewhat above the lower limit of the operation power supply voltage of an electronic system. The output thereof supplies weak battery warning. The second detecting circuit detects the power supply voltage having lowered to the lower limit level of said operation power-supply voltage. The output thereof prohibits the operation of said electronic system. Thereby, desirable battery-replacement times becomes clarified and the malfunction of said electronic system is prevented.

    摘要翻译: 根据两个检测电路的输出信号进行电池电压警告。 第一检测电路检测到电源电压降低到稍高于电子系统的操作电源电压的下限值。 其输出提供弱电池警告。 第二检测电路检测已经降低到所述操作电源电压的下限电平的电源电压。 其输出禁止所述电子系统的操作。 因此,期望的电池更换时间变得清楚,并且防止了所述电子系统的故障。

    Power supply resetting circuit for camera
    3.
    发明授权
    Power supply resetting circuit for camera 失效
    相机电源复位电路

    公开(公告)号:US4198142A

    公开(公告)日:1980-04-15

    申请号:US924756

    申请日:1978-07-14

    CPC分类号: G03B43/00 G03B7/0807

    摘要: The power supply resetting circuit of the invention is adapted to be used in such a type of camera that the shutter release action comprises two steps of strokes: a first stroke by which a power supply circuit for electric circuits mounted in the camera, such as a light measuring circuit, is closed, and a second stroke by which at least the operation of the circuits mounted in the camera is started. The power supply resetting circuit has a self-holding circuit for closing the power supply circuit and additionally mounted to the electric circuits in the camera. The self-holding circuit is adapted to be turned into operation by the second stroke of the shutter release action, substantially simultaneously with the starting of operation of the circuits mounted in the camera, and to be turned inoperative, so as to break the power supply circuit, at the instant at which the photographing sequence is completed or with a certain time lag to that instant.

    摘要翻译: 本发明的电源复位电路适用于这种类型的相机,其中快门释放动作包括两个步骤:第一行程,用于安装在相机中的电路的电源电路,例如 光测量电路闭合,并且第二行程至少开始安装在照相机中的电路的操作。 电源复位电路具有用于闭合电源电路的自保持电路,并且另外安装在照相机中的电路上。 自动保持电路适于通过快门释放动作的第二行程转换为操作,与安装在照相机中的电路的操作开始基本同时,并且不能工作,以便断开电源 电路,在拍摄顺序完成的时刻或者一定时间滞后到那个时刻。

    Film magazine having an identity mark for identifying sensitivity of the
film and a camera therefor
    5.
    发明授权
    Film magazine having an identity mark for identifying sensitivity of the film and a camera therefor 失效
    电影杂志具有用于识别电影的敏感度的身份标识和相机

    公开(公告)号:US4309088A

    公开(公告)日:1982-01-05

    申请号:US59133

    申请日:1979-07-20

    IPC分类号: G03B7/20 G03B7/00 G03B17/24

    CPC分类号: G03B7/003

    摘要: A film magazine is provided with a peripheral surface carrying at least one photoelectrically discriminatable strip-like mark indicative of the sensitivity of film contained within the magazine, and a photographic camera having a shutter operating circuit automatically adjustable in accordance with the sensitivity of photographic film contained within such a film magazine inserted into the camera includes photoelectric discriminating means located in the camera for discriminatably reading the at least one strip-like mark on the film magazine when placed in the magazine chamber.

    摘要翻译: 一个胶片盒装有一个周边表面,带有至少一个光电可区分的带状标记,表示包含在胶卷盒内的胶片的灵敏度,以及摄影相机,其具有根据所包含的照相胶片的灵敏度自动调节的快门操作电路 插入照相机的这种胶片盒内包括位于照相机中的光电鉴别装置,用于当放置在胶囊盒中时可辨别地读取胶片盒上的至少一个条状标记。

    Camera having a liquid crystal focusing screen
    6.
    发明授权
    Camera having a liquid crystal focusing screen 失效
    相机具有液晶聚焦屏

    公开(公告)号:US4441798A

    公开(公告)日:1984-04-10

    申请号:US433021

    申请日:1982-10-06

    CPC分类号: G03B13/24 G03B13/20

    摘要: A camera which includes a liquid crystal focusing screen and an exposure control circuit that measures light reflected from the subject to be photographed after its passage through the liquid crystal screen is further provided with a circuit for compensating the light value determined by the exposure control circuit when operating voltage is not applied to the focusing screen so as to thereby compensate the amount of light measured through the screen when the nonapplication of operating voltage to the focusing screen causes the screen to transmit light therethrough less readily than when operating voltage is applied thereto.

    摘要翻译: 包括液晶聚焦屏和曝光控制电路的照相机还设置有用于补偿由曝光控制电路确定的光值的电路,该电路用于补偿由曝光控制电路确定的光值, 工作电压不会施加到聚焦屏幕上,从而当对聚焦屏幕的工作电压的不使用导致屏幕比施加工作电压时更不容易透过光线,从而补偿通过屏幕测量的光量。

    Color image forming apparatus with improved color image registration
    7.
    发明授权
    Color image forming apparatus with improved color image registration 失效
    具有改进的彩色图像配准的彩色图像形成装置

    公开(公告)号:US5233402A

    公开(公告)日:1993-08-03

    申请号:US881455

    申请日:1992-05-11

    摘要: The color image forming machine such like a color printer or a color copier for forming a color image on a recording sheet. The image forming machine includes a photoreceptor belt; a belt driver for rotating the photoreceptor in a longitudinal direction; a laser beam scanner for repeatedly scanning the photoreceptor in a direction perpendicular to the longitudinal direction, with the laser beam, so that the latent image is formed on the photoreceptor; a developer for developing the latent image with plural color toners; a measuring unit for determining a rotation time of the photoreceptor; and a controller unit for controlling a scanning frequency of the laser beam scanner so that one scanning time of the laser beam scanner is set to the result of dividing the rotation time of the photoreceptor, while the photoreceptor rotates one round, by an integer.

    摘要翻译: 彩色图像形成机如彩色打印机或彩色复印机,用于在记录纸上形成彩色图像。 图像形成机包括感光带; 用于沿纵向旋转感光体的皮带驱动器; 激光束扫描器,用激光束在垂直于纵向的方向上反复扫描感光体,使感光体上形成潜像; 用于利用多色调色剂显影潜像的显影剂; 用于确定感光体的旋转时间的测量单元; 以及用于控制激光束扫描器的扫描频率的控制器单元,使得激光束扫描器的一个扫描时间被设置为在感光体旋转一圈的同时将感光体的旋转时间除以整数的结果。

    Camera device
    8.
    发明授权
    Camera device 失效
    相机设备

    公开(公告)号:US4589604A

    公开(公告)日:1986-05-20

    申请号:US554379

    申请日:1983-11-25

    申请人: Michio Yagi Eiji Ito

    发明人: Michio Yagi Eiji Ito

    IPC分类号: G03B17/42 G03B1/04 G03B1/24

    CPC分类号: G03B17/425

    摘要: A camera device wherein a one-way clutch or a friction clutch is provided between a driving power source and a winding spool, a one-way clutch or a friction clutch is provided between a rewinding shaft and a rewinding spool, said driving power source and a sprocket, or a one-way clutch or a friction clutch is provided between a shaft of said sprocket and the same sprocket. The speed of revolution in a rewinding direction of said driving power source during a rewinding operation is set to a level not lower than a speed of revolution of said winding spool rotated in the rewinding direction by a film being rewound. The winding power source and the rewinding shaft both of which are adapted to be rotated positively at different speed ratios.

    摘要翻译: 一种相机装置,其中在驱动动力源和绕线轴之间设置有单向离合器或摩擦离合器,单向离合器或摩擦离合器设置在重绕轴和重绕卷轴之间,所述驱动动力源和 链轮或单向离合器或摩擦离合器设置在所述链轮的轴与同一链轮之间。 在倒带操作期间,所述驱动动力源的倒带方向上的转速设定为通过被卷绕的薄膜而使回转方向上旋转的所述卷绕卷轴的旋转速度不低于旋转速度。 绕组电源和重绕轴两者都适于以不同的速度正向旋转。

    Programmed automatic exposure control
    9.
    发明授权
    Programmed automatic exposure control 失效
    编程自动曝光控制

    公开(公告)号:US4497563A

    公开(公告)日:1985-02-05

    申请号:US435112

    申请日:1982-10-18

    CPC分类号: G03B7/083

    摘要: An automatic exposure control method and device has photometry means for detecting the brightness of a subject and providing an output signal in response thereto, a shutter, driving means for driving the shutter toward a full aperture, closing means for closing the shutter in accordance with the output signal from the photometry means, and adjusting means for adjusting the photometry means in a stepwise manner to provide the output signal variably in accordance with the light detected and the opening position of the shutter. In one embodiment, the driving means for opening the shutter engages a series of contacts for correspondingly short-circuiting photoelectric elements providing the electrical signal output, thereby varying in a stepwise manner the charging of a capacitor in a comparator circuit for disengaging a solenoid controlling the shutter closing means.

    摘要翻译: 自动曝光控制方法和装置具有用于检测被摄体的亮度并响应于此而提供输出信号的光度测量装置,快门,用于将快门朝向全光圈驱动的驱动装置,用于根据 来自测光装置的输出信号,以及用于以逐步方式调节测光装置的调节装置,以根据所检测的光和快门的打开位置可变地提供输出信号。 在一个实施例中,用于打开快门的驱动装置接合一系列触点,用于相应地短路提供电信号输出的光电元件,从而逐步地改变比较器电路中的电容器的充电,以分离控制 快门关闭装置。

    Apparatus for detecting focal point
    10.
    发明授权
    Apparatus for detecting focal point 失效
    用于检测焦点的装置

    公开(公告)号:US4189218A

    公开(公告)日:1980-02-19

    申请号:US801547

    申请日:1977-05-31

    CPC分类号: G02B7/34

    摘要: Disclosed is an apparatus adapted to be used in a single lens reflex camera for detecting whether a correct focal adjustment has been made. The apparatus includes a pair of focal point detecting optical systems placed relative to each other on symmetrical positions with respect to an extending optical axis which is turned by an optical reflecting means, at the rear of a semitransparent movable mirror. A position where an image of an object on a main optical axis of the object lens, is focused by said object lens when an observing point of the object is placed in a position with an infinity distance, is determined as a basic point. The optical axes of said pair of focal point detecting optical systems cross with each other at said basic point. A photo-electric detecting plate is arranged in the vicinity of a film surface. A position on said detecting plate where an image of the object on said basic point is projected by said focal point detecting optical systems is determined as a cardinal point. A correct focusing is detected electrically when the observing point of the object is projected onto said cardinal point.

    摘要翻译: 公开了一种适用于单镜头反光相机的装置,用于检测是否进行了正确的焦点调整。 该装置包括一对焦点检测光学系统,其相对于在半透明可移动镜的后部处的光学反射装置转动的延伸光轴在对称位置处彼此相对放置。 将物体的观察点放置在无限距离的位置时,通过所述物镜聚焦在物镜的主光轴上的物体的图像的位置被确定为基本点。 所述一对焦点检测光学系统的光轴在所述基本点彼此交叉。 光电检测板设置在膜表面附近。 将所述基准点上的物体的图像由所述焦点检测光学系统投影的所述检测板上的位置确定为基点。 当物体的观察点投影到所述基点上时,电检测正确的聚焦。