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公开(公告)号：US4363540A
公开(公告)日：1982-12-14
申请号：US762514
申请日：1977-01-26
申请人： Yoshiyuki Takishima , Yukio Mashimo , Masanori Uchidoi , Hiroshi Aizawa , Bernhard H. Andresen , Robert C. Martin , Stephen C. Kwan
发明人： Yoshiyuki Takishima , Yukio Mashimo , Masanori Uchidoi , Hiroshi Aizawa , Bernhard H. Andresen , Robert C. Martin , Stephen C. Kwan
CPC分类号： G03B7/093
摘要： A storage device for storing photographic exposure information employs a closed-loop analog-to-digital (A-D) converter circuit includes a counter and a digital-to-analog (D-A) converter. The influence of erroneous signals which are created at the output of the D-A converter when the exposure information is stored in the counter is eliminated. The D-A converter circuit employs a ladder network of coarse accuracy. The stored exposure value, however, is highly accurate because of the closed-loop nature of the A-D converter circuit. Means responsive to the stored value for operating the exposure system of the camera are disclosed.
摘要翻译： 用于存储照相曝光信息的存储设备采用闭环模数（A-D）转换器电路，其包括计数器和数模（D-A）转换器。 当曝光信息存储在计数器中时，在D-A转换器的输出端产生的错误信号的影响被消除。 D-A转换器电路采用粗略的梯形网络。 然而，存储的曝光值由于A-D转换器电路的闭环特性而高度精确。 公开了响应用于操作照相机的曝光系统的存储值的装置。
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公开(公告)号：US4371243A
公开(公告)日：1983-02-01
申请号：US298334
申请日：1981-08-31
IPC分类号： G03B7/0805 , G03B7/081 , G03B7/16 , G03B7/085 , G03B15/05
摘要： A camera detects which of a number of operating modes is dialed into a flash unit by sensing the current level produced by a source. In response to dialing of a daylight EE mode, the camera measures the brightness of the object to be photographed and conforms the diaphragm aperture to a preselected shutter speed. In one flash mode the flash unit transmits desired aperture and shutter speed data suitable for flash and the camera automatically responds. In another mode, the shutter speed is set into the camera and the camera automatically controls the diaphragm aperture on the basis of data transmitted by the flash unit.
摘要翻译： 相机通过感测源产生的当前电平来检测多少个操作模式中的哪一个被拨入闪存单元。 响应于拨打日光EE模式，相机测量要拍摄的对象的亮度，并将光阑孔径符合预选的快门速度。 在一个闪光模式下，闪光灯发射所需的适合闪光灯的光圈和快门速度数据，相机自动响应。 在另一种模式下，将快门速度设置在相机中，相机根据闪光灯组件发送的数据自动控制光阑孔径。
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公开(公告)号：US4219260A
公开(公告)日：1980-08-26
申请号：US883904
申请日：1978-03-06
CPC分类号： G03B7/083
摘要： The present invention relates to a camera having an exposure control device designed so that the light measurement, the exposure condition determination and the photographing operation are carried out by means of a release means including an electromagnet element to be controlled by means of a plural number of switches operating successively with the release operation of the camera. The invention is characterized in that the time at which the output signal of the control circuit for controlling the operation of the camera after the light measurement in accordance with the magnitude of the output signal of the light measuring means is controlled so as to be delayed in such a manner that a correct operation can be obtained even if the light measuring time is short.
摘要翻译： 本发明涉及一种具有曝光控制装置的相机，该曝光控制装置被设计成使得光测量，曝光条件确定和拍摄操作通过包括通过多个 开关随着照相机的释放操作而连续工作。 本发明的特征在于，根据光测量装置的输出信号的大小来控制用于控制光测量之后的照相机的操作的控制电路的输出信号的时间，以便被延迟 即使光测量时间短，也能够得到正确的动作。
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公开(公告)号：US4176936A
公开(公告)日：1979-12-04
申请号：US861905
申请日：1977-12-19
申请人： Susumu Kozuki , Masanori Uchidoi , Nobuaki Date , Masami Shimizu , Hiroshi Aizawa , Yoshiyuki Takishima
发明人： Susumu Kozuki , Masanori Uchidoi , Nobuaki Date , Masami Shimizu , Hiroshi Aizawa , Yoshiyuki Takishima
CPC分类号： G03B17/425 , G03B7/0807
摘要： A motor drive unit adapted for use with a camera having a motorized shutter speed adjusting device. When a continuous series of frame exposures are to be made at a predetermined frame frequency, the set value of shutter time in the camera is made to be compared with the longest possible shutter time dependent upon that frame frequency by a comparator provided in the motor drive unit. When the actual shutter time value exceeds the longest possible one, the motorized shutter speed adjusting device is actuated, causing the shutter time value to change itself to the longest possible value.
摘要翻译： 适用于具有电动快门速度调节装置的相机的电机驱动单元。 当以预定的帧频率进行连续的帧曝光系列时，将照相机中的快门时间的设定值与通过电动机驱动器中提供的比较器相关的取决于该帧频的最长可能的快门时间进行比较 单元。 当实际快门时间值超过最长时间时，电动快门速度调节装置被启动，使得快门时间值自身改变到最长可能的值。
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公开(公告)号：US4200370A
公开(公告)日：1980-04-29
申请号：US951083
申请日：1978-10-13
摘要： An automatic exposure control system for cameras of flash photographic capabilities which is switched to either of the daylight or the mode depending upon whether or not a storage capacitor across which a flash tube is connected is sufficiently charged. The system comprises first and second computers for deriving daylight and flash exposure aperture values respectively, a diaphragm control circuit selectively receptive of the outputs of the computers through a first switch, first and second timing circuits for providing daylight and flash exposure times respectively, and a shutter control circuit selectively receptive of the outputs of the timing circuits through a second switch. The system is characterized in the use of a single mode selection actuator which is common to the first and second switches and which causes an automatic selection of the flash mode when the camera release occurs after the attainment of the voltage of the storage capacitor to the normal firing level. Thus, it is made possible to prevent occurrence of an event where the flash tube is actuated for firing with the simultaneous occurrence of selection of the flash exposure time, while the daylight exposure aperture remains effective, as the storage capacitor voltage reaches the normal firing level at a point in time during the daylight exposure operation.
摘要翻译： 一种用于闪光照相能力的照相机的自动曝光控制系统，其被充分地充电，该自动曝光控制系统根据闪光灯管连接的存储电容器切换到日光或模式中的任一种。 该系统包括用于分别导出日光和闪光曝光光圈值的第一和第二计算机，通过第一开关选择性地接收计算机的输出的光阑控制电路，分别提供日光和闪光曝光时间的第一和第二定时电路，以及 快门控制电路通过第二开关选择性地接收定时电路的输出。 该系统的特征在于使用单模式选择致动器，其是第一和第二开关共同的，并且当在将存储电容器的电压达到正常之后发生相机释放时，自动选择闪光模式 射击等级 因此，当存储电容器电压达到正常点火电平时，可以防止在闪光管被激活以触发闪光的同时发生闪光曝光时间的选择的同时白昼曝光孔径保持有效的事件的发生 在白天曝光操作的时间点。
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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
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。
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公开(公告)号：US4178086A
公开(公告)日：1979-12-11
申请号：US892421
申请日：1978-03-31
CPC分类号： G03B17/42
摘要： In the camera disclosed, an electromagnetic actuator is responsive to a timing pulse of short duration from an exposure control circuit for controlling the closing movement of a shutter. A permanent magnet may accidently be left latched and hold the rear curtain in cocked position after the timing pulse because of possible damage to an electromagnetic control circuit as a result of a battery short circuit. This may cause the film to fog during subsequent winding or rewinding. To prevent this, an indicator produces a visible indication either in the field of view of the camera finder or, in the case of remote shutter operation, outside the camera housing, that the rear curtain must be manually unlatched.
摘要翻译： 在所公开的照相机中，电磁致动器响应于来自曝光控制电路的持续时间短的定时脉冲，用于控制快门的关闭运动。 永久磁铁可能意外地被锁定，并且在定时脉冲之后将后帘保持在起动位置，因为可能由于电池短路而损坏电磁控制电路。 这可能导致胶片在随后的卷绕或倒带过程中起雾。 为了防止这种情况，指示器在摄像机的视野中产生可见的指示，或者在远程快门操作的情况下，在摄像机壳体外部，必须手动解锁后帘。
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公开(公告)号：US4221476A
公开(公告)日：1980-09-09
申请号：US858084
申请日：1977-12-06
申请人： Hiroshi Aizawa , Masanori Uchidoi , Susumu Kozuki , Nobuaki Date , Masami Shimizu , Yoshiyuki Takishima
发明人： Hiroshi Aizawa , Masanori Uchidoi , Susumu Kozuki , Nobuaki Date , Masami Shimizu , Yoshiyuki Takishima
CPC分类号： G03B7/081 , G03B7/0807
摘要： In the camera disclosed, a light measuring device and input data setting device establish exposure control signals which regulate exposure elements. When the control signal is out of range of an element, a switch turns on an adjusting arrangement which resets the setting device. The setting device may preset an element such as the aperture or shutter.
摘要翻译： 在所公开的照相机中，光测量装置和输入数据设定装置建立调节曝光元件的曝光控制信号。 当控制信号超出元件的范围时，开关打开重置设置装置的调整装置。 设置装置可以预设诸如光圈或快门的元件。
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公开(公告)号：US4032933A
公开(公告)日：1977-06-28
申请号：US554901
申请日：1975-03-03
申请人： Tadashi Ito , Masanori Uchidoi , Tetsuya Taguchi , Tokuichi Tunekawa , Hiroshi Aizawa , Yoshiyuki Takishima
发明人： Tadashi Ito , Masanori Uchidoi , Tetsuya Taguchi , Tokuichi Tunekawa , Hiroshi Aizawa , Yoshiyuki Takishima
IPC分类号： G03B17/20
CPC分类号： G03B17/20
摘要： A camera having an indication system to determine suitable diaphragm aperture value by measuring the light penetrating through a photographing lens and to indicate the same digitally, wherein when said diaphragm aperture value exceeds the limit value of exposure control of a camera, a warning indication is given by the indication means to indicate the fact that the diaphragm aperture value is outside of control limit, and the number of input/output lead wires to the indication means is reduced. Thus simplifying the set-up.
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公开(公告)号：US4015149A
公开(公告)日：1977-03-29
申请号：US583445
申请日：1975-06-03
申请人： Tokuichi Tsunekawa , Masanori Uchidoi , Tetsuya Taguchi , Yoshiyuki Takishima , Tadashi Ito , Hiroshi Aizawa
发明人： Tokuichi Tsunekawa , Masanori Uchidoi , Tetsuya Taguchi , Yoshiyuki Takishima , Tadashi Ito , Hiroshi Aizawa
摘要： A temperature compensating device for devices comprising semiconductors. The temperature compensating device comprises a temperature compensating circuit, such as a circuit including a diode, and a current control circuit which adjusts the quantity of the electric current flowing through the temperature compensating circuit. The temperature characteristic of the temperature compensating circuit is mutually compensatory with that of the output of the device comprising semiconductors. When the temperature characteristic of the output of said temperature compensating circuit differs from that of the output of such semiconductor device, the current control circuit causes a current which corresponds to the difference between the temperature coefficient of the compensating circuit and that of the semiconductor device to flow through the temperature compensating circuit, so that satisfactory temperature compensation can be accomplished.
摘要翻译： 一种包含半导体器件的温度补偿装置。 温度补偿装置包括诸如包括二极管的电路的温度补偿电路和调节流过温度补偿电路的电流量的电流控制电路。 温度补偿电路的温度特性与包括半导体的器件的输出相互补偿。 当所述温度补偿电路的输出的温度特性与这种半导体器件的输出的温度特性不同时，电流控制电路使得对应于补偿电路的温度系数与半导体器件的温度系数之间的差的电流 流过温度补偿电路，从而可以实现令人满意的温度补偿。
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