Automatic exposure camera
    1.
    发明授权
    Automatic exposure camera 失效
    自动曝光相机

    公开(公告)号:US4629305A

    公开(公告)日:1986-12-16

    申请号:US703563

    申请日:1985-02-20

    CPC分类号: G03B7/093 G03B7/0807

    摘要: An automatic exposure camera in which any one of four modes, specifically, an aperture-priority automatic exposure mode, a shutter-speed-priority automatic exposure mode, a programmed automatic exposure mode and a manual exposure mode, can be readily set with reduced danger of improper selection. An automatic/manual switch is operated in association with a lens aperture ring to select one of an automatic aperture mode and a manual aperture mode for a lens of the camera. A mode A counter responds to the output of the automatic/manual switch to be made active when the automatic aperture mode is selected, and a mode M counter responds to the automatic/manual switch to be made active when the manual mode is selected. The output of one of the mode A counter and the mode M counter is selected for counting signals from the up or down switch to thereby set the exposure mode according to a count value so obtained.

    摘要翻译: 一种自动曝光照相机,其中可以容易地以降低的危险设置四种模式中的任何一种,具体地,光圈优先自动曝光模式,快门速度优先自动曝光模式,编程的自动曝光模式和手动曝光模式 选择不当。 与镜头光圈环相关联地操作自动/手动开关以选择相机镜头的自动光圈模式和手动光圈模式之一。 当选择自动光圈模式时,模式A计数器响应自动/手动开关的输出,并且当选择手动模式时,模式M计数器响应自动/手动开关激活。 选择模式A计数器和模式M计数器之一的输出用于对来自向上或向下开关的信号进行计数,从而根据如此获得的计数值设置曝光模式。

    Photographing mode display switching circuit
    2.
    发明授权
    Photographing mode display switching circuit 失效
    摄影模式显示切换电路

    公开(公告)号:US4557575A

    公开(公告)日:1985-12-10

    申请号:US587789

    申请日:1984-03-09

    CPC分类号: G03B7/091 G03B7/0807

    摘要: A photographing mode selecting circuit for a camera having a very low power consumption. A mechanical switch is provided for each possible photographing mode of the camera. Each mechanical switch is coupled in series with a resistor and an analog switch between the power source terminals. The analog switches are periodically pulsed to close them, thereby allowing current to flow through the corresponding resistor and mechanical switch if the mechanical switch is closed. The outputs formed at the junctions between the analog switches and the resistors are applied to flip-flop circuits for storage.

    摘要翻译: 一种具有非常低功耗的相机的拍摄模式选择电路。 为相机的每个可能的拍摄模式提供机械开关。 每个机械开关与电源端子之间的电阻器和模拟开关串联耦合。 模拟开关周期性脉冲以关闭它们,从而允许电流流过对应的电阻器和机械开关,如果机械开关闭合。 在模拟开关和电阻之间的接合处形成的输出被施加到用于存储的触发器电路。

    Device for illuminating display unit in viewfinder
    3.
    发明授权
    Device for illuminating display unit in viewfinder 失效
    用于在取景器中照亮显示单元的装置

    公开(公告)号:US4555170A

    公开(公告)日:1985-11-26

    申请号:US689265

    申请日:1985-01-07

    IPC分类号: G02F1/13 G03B17/20 G03B17/18

    CPC分类号: G03B17/20

    摘要: A device for controlling a light source in a viewfinder of a camera, such as may be used for illuminating a liquid crystal display unit, having a simple operation and which is saving of power. An operating switch is provided for operating the light source. A timer is initiated when the operating switch is turned off. The light source is maintained turned on while the operating switch is turned on and while the timer is operating, and the light source is turned off when the operating switch is turned on during the operation of the timer.

    摘要翻译: 用于控制相机取景器中的光源的装置,例如可以用于照明液晶显示单元,具有简单的操作并且节省电力。 提供用于操作光源的操作开关。 当操作开关关闭时,启动定时器。 当操作开关打开时和定时器运行时,光源保持接通,并且在定时器操作期间操作开关接通时,光源被关闭。

    Manual aperture value setting circuit for camera
    4.
    发明授权
    Manual aperture value setting circuit for camera 失效
    手动光圈值设定电路

    公开(公告)号:US4558940A

    公开(公告)日:1985-12-17

    申请号:US672315

    申请日:1984-11-16

    CPC分类号: G03B7/093 G03B7/20

    摘要: A manual aperture value setting circuit for a camera in which digital values corresponding to the full-aperture value and the minimum aperture value of a lens mounted on a camera are applied from the lens in digital form to a logic circuit which operates so that, with the range of aperture value set on the side of the camera being maintained in the aperture value range of the lens, the aperture value which has been set is changed to the full-aperture value or the minimum aperture value of the lens when it is out of the aperture value range of the lens.

    摘要翻译: 一种用于照相机的手动光圈值设置电路,其中将数字值与镜头上的全光圈值和最小光圈值相对应地以数字形式从数字形式施加到逻辑电路,逻辑电路的操作使得与 在相机侧设置的光圈值的范围保持在透镜的光圈值范围内,已经设定的光圈值在出现时被改变为透镜的全光圈值或最小光圈值 的镜头的光圈值范围。

    Automatic control apparatus for photographic camera
    5.
    发明授权
    Automatic control apparatus for photographic camera 失效
    照相机自动控制装置

    公开(公告)号:US4514075A

    公开(公告)日:1985-04-30

    申请号:US258043

    申请日:1981-04-28

    IPC分类号: G03B7/095 G03B7/08

    CPC分类号: G03B7/095

    摘要: In an automatic diaphragm stop down operation square wave pulses are generated, the number of which represents the extent of diaphragm stop down. Short pulses are generated responsive to the leading and trailing edges of the square wave pulses. The short pulses are counted. After a predetermined number of short pulses are counted, diaphragm stop down is arrested. In one embodiment, when a periodic input signal representative of the extent of diaphragm stop down rises above a first threshold, the square wave pulses are produced at a first level and when the input signal drops below a second threshold lower than the threshold, the square wave pulses are produced at a second level.

    摘要翻译: 在自动膜片停止运行中,产生方波脉冲,其数量代表膜片停止的程度。 响应于方波脉冲的前沿和后沿产生短脉冲。 计数短脉冲。 在计数预定数量的短脉冲之后,隔膜停止停止。 在一个实施例中,当表示膜片停止的程度的周期性输入信号上升到高于第一阈值时,在第一电平产生方波脉冲,并且当输入信号下降到低于阈值以下的第二阈值时, 在第二级产生波脉冲。

    Disablement of shutter release in photographic camera having
interchangeable objectives
    6.
    发明授权
    Disablement of shutter release in photographic camera having interchangeable objectives 失效
    禁用具有可互换目标的相机中的快门释放

    公开(公告)号:US4382669A

    公开(公告)日:1983-05-10

    申请号:US285915

    申请日:1981-07-23

    CPC分类号: G03B17/14 G03B7/0807

    摘要: A photographic camera of interchangeable lens type has an interchangeable objective that can be removably mounted on a camera body and a plurality of switches each capable of assuming a first or a second state. The switches all assume the same state when the objective is removed from the camera body and selectively assume the first and second states according to the value of at least one lens characteristic when the objective is mounted on the camera body. An automatic exposure control mechanism is operated responsive to the selectively assumed states of the switches when the objective is mounted on the camera body. A shutter release mechanism is disabled responsive to said same state of all the switches.

    摘要翻译: 可互换镜头类型的照相机具有可互换的物镜,其可拆卸地安装在照相机主体和多个开关上,每个开关能够呈现第一或第二状态。 当物镜从相机主体移除时,开关全部呈现相同的状态,并且当物镜安装在照相机主体上时根据至少一个透镜特性的值选择性地采取第一和第二状态。 当物镜安装在照相机主体上时,响应于选择性地假设的开关状态来操作自动曝光控制机构。 响应于所有开关的所述相同状态而禁用快门释放机构。

    Electric source circuit for camera
    7.
    发明授权
    Electric source circuit for camera 失效
    相机电源电路

    公开(公告)号:US4324468A

    公开(公告)日:1982-04-13

    申请号:US197356

    申请日:1980-10-15

    IPC分类号: G03B7/26 G03B15/05 G03B17/18

    CPC分类号: G03B17/18 G03B7/16 G03B7/26

    摘要: An electric source circuit for a camera in which the voltage of a power source is automatically applied to the exposure control and display circuit of a camera when the electronic flash is fully charged. A first switch circuit is operatively coupled between a power source and the exposure control and display circuit. A photometric switch for controlling the conduction and non-conduction of the first switching circuit is coupled in parallel with the second switching circuit. The second switching circuit is coupled to detect when the electronic flash mounted on the camera is fully charged. A third switching circuit can be provided for activating an indicating device such as an LED or piezoelectric transducer.

    摘要翻译: 一种用于照相机的电源电路,其中当电子闪光灯完全充电时,电源的电压自动施加到照相机的曝光控制和显示电路。 第一开关电路可操作地耦合在电源和曝光控制和显示电路之间。 用于控制第一开关电路的导通和非导通的光度开关与第二开关电路并联耦合。 第二开关电路被耦合以检测安装在相机上的电子闪光灯是否被完全充电。 可以提供第三开关电路来激活诸如LED或压电换能器的指示装置。

    Control circuit for motor-drive cameras
    8.
    发明授权
    Control circuit for motor-drive cameras 失效
    电机驱动摄像机控制电路

    公开(公告)号:US4079397A

    公开(公告)日:1978-03-14

    申请号:US725062

    申请日:1976-09-21

    IPC分类号: G03B17/00 G03B17/42 G03B1/00

    CPC分类号: G03B17/425

    摘要: A circuit is disclosed for controlling the drive motor of a motor driven camera in a single frame shot mode, A continuous shooting mode and a bulb mode. The circuit includes provision for controlling the camera from a plurality of positions. A release circuit controls the motor until the shutter is released. Then a film winding circuit controls. The time constant of the film winding circuit may be varied to control the duration between successive shots in a continuous shot mode. For a single shot mode, the film winding circuit is effectively blocked from operating the motor until the release button is no longer depressed.

    摘要翻译: 公开了一种用于以单帧拍摄模式,A连拍模式和灯泡模式控制电动机驱动相机的驱动电机的电路。 电路包括用于从多个位置控制摄像机的设置。 释放电路控制电机,直到快门释放。 然后一个电影绕组电路控制。 可以改变胶片卷绕电路的时间常数以控制连续拍摄模式中连续拍摄之间的持续时间。 对于单次拍摄模式,胶片卷绕电路被有效地阻止运行电机,直到释放按钮不再被按下。

    Display device in camera view finder
    9.
    发明授权
    Display device in camera view finder 失效
    相机查看器中的显示设备

    公开(公告)号:US4198148A

    公开(公告)日:1980-04-15

    申请号:US954676

    申请日:1978-10-25

    申请人: Eiichi Tano

    发明人: Eiichi Tano

    IPC分类号: G03B17/18 G03B17/20

    CPC分类号: G03B17/20

    摘要: A display device in the view finder of a camera with display capability in which a read only memory is addressed by photographing data of the camera which have been converted into digital data. A display element is driven by output data from the read only memory to visually display the data such as shutter speed, f-stop, etc. The instruction which will completely turn off the display element is stored in said read only memory, and turning off the display element is controlled by addressing said read only memory.

    摘要翻译: 具有显示能力的相机的取景器中的显示装置,其中通过拍摄已经被转换成数字数据的相机的数据来寻址只读存储器。 显示元件由来自只读存储器的输出数据驱动,以可视地显示诸如快门速度,f-stop等的数据。将完全关闭显示元件的指令存储在所述只读存储器中,并且关闭 通过寻址所述只读存储器来控制显示元件。

    Exposure time control circuit for camera
    10.
    发明授权
    Exposure time control circuit for camera 失效
    相机曝光时间控制电路

    公开(公告)号:US4324462A

    公开(公告)日:1982-04-13

    申请号:US202858

    申请日:1980-10-31

    CPC分类号: G03B7/093

    摘要: A circuit for controlling an exposure time of a camera which operates depending on whether or not an electronic flash used with the camera is charged and ready for operation. An arithmetic operation circuit operates upon signals representing object brightness, film sensitivity, and aperture value and exposure factor compression values to calculate an automatic exposure time. The output of the arithmetic operation circuit is multiplexed with the output of a manual exposure time setting circuit to an expansion time determination circuit. The manual exposure time setting device output is multiplexed through a first gating means with the output of a counter which operates in response to an oscillator. Multiplexed outputs are coupled to an input port of a digital-to-analog converter the output of which is coupled to one input of an analog-to-digital converter and the other input of which is coupled to the output of the arithmetic operation circuit. The output of the analog-to-digital converter is multiplexed with the output of the first gating means to operate a display device.

    摘要翻译: 用于控制照相机的曝光时间的电路,其根据是否与照相机一起使用的电子闪光灯进行充电并准备好进行操作。 算术运算电路根据表示物体亮度,胶片敏感度,光圈值和曝光因子压缩值的信号进行运算,以计算自动曝光时间。 算术运算电路的输出与手动曝光时间设定电路的输出多路复用到扩展时间确定电路。 手动曝光时间设定装置输出通过第一选通装置与响应振荡器操作的计数器的输出进行复用。 多路复用输出耦合到数模转换器的输入端口,数字模拟转换器的输出端耦合到模拟 - 数字转换器的一个输入端,另一个输入端耦合到算术运算电路的输出端。 模数转换器的输出与第一选通装置的输出多路复用以操作显示装置。