-
公开(公告)号：US4448506A
公开(公告)日：1984-05-15
申请号：US396060
申请日：1982-07-07
申请人： Takashi Saegusa , Osamu Maida , Toru Fukuhara
发明人： Takashi Saegusa , Osamu Maida , Toru Fukuhara
CPC分类号： G03B7/09979 , G03B7/097 , G03B7/09974 , G03B7/09976
摘要： An exposure control device of a camera comprises first metering means for effecting metering while dividing an object into a plurality of metering areas and for generating a first metering output determining the exposure of the entire object on the basis of a plurality of photoelectric outputs corresponding to said areas, second metering means for generating a second metering output corresponding to the object light passed through the aperture of a phototaking lens, first operational means for generating a first operation output including information on the difference between the first metering output and the second metering output, second operational means for synthesizing the second metering output during the stop-down of said aperture and the first operation output and generating a second operation output, and blocking means for blocking the stop-down when the second operation output and an output corresponding to a preset shutter speed assume a predetermined relation.
摘要翻译： 照相机的曝光控制装置包括：第一计量装置，用于在将物体分成多个计量区域时进行计量，并且用于产生基于对应于所述多个计量区域的多个光电输出来确定整个物体的曝光的第一计量输出 区域，第二计量装置，用于产生对应于穿过感光透镜的孔径的物体光的第二计量输出;第一操作装置，用于产生包括关于第一计量输出和第二计量输出之间的差的信息的第一操作输出， 第二操作装置，用于在所述孔径停止和第一操作输出期间合成第二计量输出并产生第二操作输出;以及闭锁装置，用于当第二操作输出和对应于预设的输出时，阻止停止 快门速度呈现预定关系。
-
公开(公告)号：US4431291A
公开(公告)日：1984-02-14
申请号：US424337
申请日：1982-09-27
申请人： Osamu Maida
发明人： Osamu Maida
摘要： In a camera usable with an electronic flash device and including an indicating element adapted to be operated when the electronic flash device has become capable of emitting flashlight, an electric shutter and a voltage detecting circuit for detecting the voltage of a battery for driving the electric shutter, there is provided a control circuit for rendering the indicating element inoperative in response to the output of the detecting circuit when the voltage of the battery is below a predetermined value, independently of whether or not the electronic flash device is in flashlight emission capable condition.
摘要翻译： 在可用于电子闪光装置并包括适于在电子闪光装置能够发射手电筒时被操作的指示元件的相机中的电快门和电压检测电路，用于检测用于驱动电动快门的电池的电压 提供了一种控制电路，用于当电池的电压低于预定值时响应于检测电路的输出而使指示元件不起作用，而与电子闪光装置是否处于手电筒发射能力条件无关。
-
公开(公告)号：US4365236A
公开(公告)日：1982-12-21
申请号：US176579
申请日：1980-08-08
申请人： Osamu Maida
发明人： Osamu Maida
IPC分类号： G01R13/02 , G01R19/257 , H03M1/00 , H03K13/175
CPC分类号： G01R19/257 , G01R13/02 , H03M1/361
摘要： A display circuit for displaying analog input voltages in a digital fashion using a parallel comparison type analog-digital converter includes a voltage generator for generating a plurality of reference voltages quantized at a predetermined voltage width, a plurality of comparators corresponding to the plurality of reference voltages for comparing the reference voltages and an analog input voltage as input, and display means for encoding and displaying the output of the plurality of comparators, is provided with modulating apparatus for modulating one of the inputs of each of the plurality of comparators periodically within the range of the predetermined voltage width.
摘要翻译： 一种使用并行比较型模拟数字转换器以数字方式显示模拟输入电压的显示电路包括用于产生以预定电压宽度量化的多个参考电压的电压发生器，对应于多个参考电压的多个比较器 用于比较参考电压和作为输入的模拟输入电压，以及用于对多个比较器的输出进行编码和显示的显示装置，具有用于在该范围内周期性地调制多个比较器中的每一个的输入中的一个的调制装置 的预定电压宽度。
-
公开(公告)号：US4353633A
公开(公告)日：1982-10-12
申请号：US244288
申请日：1981-03-16
申请人： Osamu Maida
发明人： Osamu Maida
CPC分类号： G03B17/425
摘要： A motor drive device to be coupled with a camera for driving a film advancing mechanism thereof. Each of said camera and motor drive device is provided with an electric control device and a power supply circuit for power supply to the electric control device. The camera is provided with a power supply control circuit for controlling power supply from the power supply circuit of the camera to the electric control device of the camera. The power supply control circuit is adapted to receive power supply from the power supply circuit of the camera with the motor drive device. The motor drive device has means for controlling the power supply from the power supply circuit of the motor drive device in synchronization with the control function of the power supply control circuit upon electric connection with the camera.
摘要翻译： 一种与相机联动以驱动胶片推进机构的电动机驱动装置。 所述照相机和电动机驱动装置中的每一个设置有电控装置和用于向电控装置供电的电源电路。 相机设置有用于控制从相机的电源电路到照相机的电气控制装置的电源的电源控制电路。 电源控制电路适于从电机驱动装置接收来自摄像机的电源电路的电源。 电动机驱动装置具有与电动机驱动装置的电源电路的电源同步的装置，与电源控制电路在与相机电连接时的控制功能同步。
-
45.发明授权
公开(公告)号：US4287549A
公开(公告)日：1981-09-01
申请号：US102829
申请日：1979-12-12
申请人： Hiroshi Hasegawa , Osamu Maida
发明人： Hiroshi Hasegawa , Osamu Maida
CPC分类号： G03B17/38
摘要： A capacitor charging circuit in a camera has switch means series-connected between a DC power source and a release magnet energizing capacitor. The switch means comprises a parallel connection of an emitter-grounded transistor for a first switch with the capacitor as the load and a collector-grounded transistor for a second switch with the capacitor as the load.
摘要翻译： 相机中的电容器充电电路具有串联连接在DC电源和释放磁体通电电容器之间的开关装置。 开关装置包括用于第一开关的发射极接地晶体管与电容器作为负载的并联连接，以及以电容器作为负载的第二开关的集电极接地晶体管。
-
公开(公告)号：US4281912A
公开(公告)日：1981-08-04
申请号：US139761
申请日：1980-04-14
申请人： Osamu Maida
发明人： Osamu Maida
CPC分类号： G03B17/425
摘要： A circuit for controlling a camera or a motor drive device by means of a control switch unit connected through a pair of connecting terminals thereof to a pair of remote control terminals of said camera or motor drive device, wherein the control switch unit comprises plural control switches and a voltage generating circuit adapted for generating plural different voltages in response to various combinations of the states of said control switches; and said camera or motor drive device comprises plural voltage detecting circuits of different detecting voltages for detecting the voltages supplied to the remote control terminals. The camera or motor drive device is controlled in response to the outputs from said voltage detecting circuits.
摘要翻译： 一种用于通过其一对连接端连接到所述照相机或电动机驱动装置的一对遥控端的控制开关单元来控制照相机或电动机驱动装置的电路，其中所述控制开关单元包括多个控制开关 以及电压发生电路，其适于响应于所述控制开关的状态的各种组合而产生多个不同的电压; 并且所述照相机或电动机驱动装置包括用于检测提供给遥控终端的电压的不同检测电压的多个电压检测电路。 响应于来自所述电压检测电路的输出来控制照相机或电动机驱动装置。
-
公开(公告)号：US4262282A
公开(公告)日：1981-04-14
申请号：US907613
申请日：1978-05-19
申请人： Osamu Maida
发明人： Osamu Maida
IPC分类号： G01R13/02 , G01R19/17 , H03M1/00 , H03K13/175
摘要： An indicator arrangement includes comparators for parallel comparison of an analog input voltage with digitalizing standard voltages to digitalize the input voltage and an indicator for indicating digitalized output. The arrangement is provided with a controller periodically switched between a first control state and a second control state. The controller in the first control state allows the comparators to perform comparison in a first voltage range of the analog input voltage while in the second control state it allows the comparators to perform comparison in a second voltage range of the analog input voltage.There is provided an encoder for coding the digitalized output of the comparators with a first coding mode in the first control state of the controller and coding the digitalized output of the comparators with a second coding mode in the second control state. The encoder is adapted to drive the indicator with a first or second mode according to the state of the controller.
摘要翻译： 指示器装置包括用于将模拟输入电压与数字化标准电压并行比较以将数字化输入电压的比较器和用于指示数字化输出的指示器。 该装置设置有在第一控制状态和第二控制状态之间周期性切换的控制器。 处于第一控制状态的控制器允许比较器在模拟输入电压的第一电压范围内进行比较，而在第二控制状态下，允许比较器在模拟输入电压的第二电压范围内执行比较。 提供了一种用于在控制器的第一控制状态下以第一编码模式对比较器的数字化输出进行编码的编码器，并且在第二控制状态下以第二编码模式对比较器的数字化输出进行编码。 编码器适于根据控制器的状态以第一或第二模式驱动指示器。
-
48.发明授权
公开(公告)号：US4036555A
公开(公告)日：1977-07-19
申请号：US557388
申请日：1975-03-11
申请人： Osamu Maida
发明人： Osamu Maida
CPC分类号： G03B21/50
摘要： An electromagnetic trigger device in a motor-driven camera capable of selection of continuous single-frame or time exposure mode. A latching lever latches a shutter driving mechanism in a shutter closed position in which a shutter is completely closed and in a shutter open position in which the shutter is fully opened. A preventing member prevents the latching lever from latching the shutter driving mechanism in the shutter open position when the continuous or single-frame exposure mode is selected.
摘要翻译： 电动摄像机中的电磁触发装置能够选择连续的单帧或时间曝光模式。 锁定杆将快门关闭位置中的快门驱动机构锁定，其中快门完全关闭，并且在快门打开位置中快门完全打开。 当选择连续或单帧曝光模式时，防止构件防止闩锁杆将快门驱动机构锁定在快门打开位置。
-
49.发明授权
公开(公告)号：US3980400A
公开(公告)日：1976-09-14
申请号：US557041
申请日：1975-03-10
申请人： Osamu Maida
发明人： Osamu Maida
CPC分类号： G03B21/50
摘要： This invention relates to an electromagnetic trigger device in a motor-driven camera for effecting bulb exposure in which the shutter is kept open during depression of the shutter release button. By depression of the shutter release button, discharge current from a first capacitor directly or indirectly energizes a electromagnet to drive a shutter driving mechanism. A latching lever stops the shutter driving mechanism in an open shutter position. By release of the button, discharge current from a second capacitor directly or indirectly energizes the electromagnet to drive the shutter driving mechanism. The latching lever stops the shutter driving mechanism in a closed shutter position, thus accomplishing the bulb exposure.
摘要翻译： 本发明涉及一种用于实现灯泡曝光的马达驱动照相机中的电磁触发装置，其中快门在按下快门释放按钮期间保持打开。 通过按下快门释放按钮，来自第一电容器的放电电流直接或间接激励电磁体以驱动快门驱动机构。 锁定杆将快门驱动机构在打开的快门位置停止。 通过释放按钮，来自第二电容器的放电电流直接或间接激励电磁体以驱动快门驱动机构。 闭锁杆将快门驱动机构停止在闭合的快门位置，从而完成灯泡曝光。
-
公开(公告)号：US3971053A
公开(公告)日：1976-07-20
申请号：US543649
申请日：1975-01-23
申请人： Osamu Maida
发明人： Osamu Maida
CPC分类号： G03B17/46
摘要： An electromagnetic trigger device for use with camera capable of automatic time exposure, comprises: a power supply; a motor; a trigger switch; shutter driving means driven by said motor for driving a shutter and movable between a fully closed position and a fully open position, said shutter driving means fully opening the shutter when it is at the fully open position and fully closing the shutter when it is at the fully closing position; engaging means movable between a latching position and a non-latching position, said engaging means being adapted, when moved to said latching position, to latch said shutter driving means which occupies one of the fully open and closing positions; a motor switch which is closed for electrically connecting said motor to said power supply, when said engaging means is in said non-latching position; a starting coil for attracting said engaging means, when energized, to move said engaging means to said non-latching position; a switching circuit for connecting said starting coil to said power supply when turned on; a starting capacitor connected to said power supply so as to be charged when said trigger switch is opened and connected to said switching circuit to render said circuit conductive when said trigger switch is closed; reset means for rendering said switching means non-conductive for a predetermined period during an interval beginning with the closing operation of said trigger switch, said predetermined lapse interval being shorter than the shorter of the time interval required for said shutter driving means to move from the fully closed position to the fully open position and the time interval required for said driving means to move from the fully open position to the fully closed position; and a charging circuit for charging said starting capacitor connected to said switching circuit after said reset means has turned off said switching circuit, said switching circuit being turned on when said starting capacitor is charged to a predetermined voltage by said charging circuit.
-
-
-
-
-
-
-
-
-
搜索结果
52 条记录 (耗时 0.023 秒)
