-
公开(公告)号：US4464609A
公开(公告)日：1984-08-07
申请号：US551491
申请日：1983-11-14
申请人： Zenzo Nakamura , Takashi Uchiyama , Shohei Ohtaki , Tokuichi Tsunekawa , Masanori Uchidoi , Yukio Mashimo
发明人： Zenzo Nakamura , Takashi Uchiyama , Shohei Ohtaki , Tokuichi Tsunekawa , Masanori Uchidoi , Yukio Mashimo
CPC分类号： H05B41/325
摘要： A voltage detecting means is provided in a flash lamp firing circuit for detecting the attainment of the voltage of a storage capacitor to a satisfactory lamp firing voltage level to assure that a photographic camera associated with the flash lighting unit operates in a flash exposure range switched from a daylight exposure range only when a sufficient voltage is available to fire the lamp at the time of striking of the lamp. In one embodiment, the detecting means comprises two transistorized circuits having output terminals one of which is connected to the gate lead of a SCR in a discharge circuit of the lamp, and another output terminal which is arranged to be connectable to a light-emitting diode of the camera and therefrom connected to the gate lead of an electronic change-over switch for selection of the operating ranges of the camera, the light-emitting diode being arranged to be visible from the outside of the camera so that the operator is immediately aware if the storage capacitor voltage has attained the satisfactory firing level.
摘要翻译： 电压检测装置设置在闪光灯点火电路中，用于检测存储电容器的电压达到满意的灯点火电压电平，以确保与闪光照明单元相关联的照相机在从 日光曝光范围仅在足够的电压可用于在点亮灯时点亮灯。 在一个实施例中，检测装置包括两个晶体管电路，其具有输出端子，其一个连接到灯的放电电路中的SCR的栅极引线，另一个输出端子被布置成可连接到发光二极管 并且由此连接到用于选择相机的操作范围的电子转换开关的栅极引线，所述发光二极管被布置为从相机的外部可见，使得操作者立即知道 如果存储电容器电压达到令人满意的放电电平。
-
2.发明授权
公开(公告)号：US4122467A
公开(公告)日：1978-10-24
申请号：US739097
申请日：1976-11-05
申请人： Tokuichi Tsunekawa , Zenzo Nakamura , Shohei Ohtaki , Nobuaki Sakurada , Masayuki Suzuki , Takashi Uchiyama
发明人： Tokuichi Tsunekawa , Zenzo Nakamura , Shohei Ohtaki , Nobuaki Sakurada , Masayuki Suzuki , Takashi Uchiyama
摘要： The present invention relates to a shutter time control circuit of the type in which the shutter time is changed over into a predetermined value for flash light photography in response to a flash charge completion signal from the flash light device. In order to eliminate the shortcoming of the conventional shutter time control circuit of this type, in that when the shutter time is changed over into the value predetermined for flash light photography predetermined shutter time is memorized in a memory capacitor for controlling the shutter time in accordance with the value memorized after the charge completion signal has disappeared.
摘要翻译： 本发明涉及一种快门时间控制电路，其中响应于来自闪光灯装置的闪光充电完成信号，快门时间被切换到用于闪光灯拍摄的预定值。 为了消除这种类型的常规快门时间控制电路的缺点，因为当快门时间改变为对于闪光灯拍摄预定的值时，预定的快门时间被存储在用于根据控制快门时间的存储电容器中 在充电完成信号消失后存储的值。
-
公开(公告)号：US4127325A
公开(公告)日：1978-11-28
申请号：US615897
申请日：1975-09-23
摘要： A self-adjusting electronic flash is attached to an interchangeable lens camera having a shutter-priority exposure control. For flash operation, aperture information suitable for electronic flash and the film sensitivity is automatically conveyed to the camera's diaphragm control. Thus the aperture can be automatically adjusted for flash as well as daylight operation.
摘要翻译： 自调整电子闪光灯附接到具有快门优先曝光控制的可互换镜头相机。 对于闪光灯操作，适用于电子闪光灯的光圈信息和胶片感光度自动传送到相机的光圈控制。 因此，可以对闪光灯以及日光操作自动调整光圈。
-
4.发明授权Electronic flash device with capacitor discharge cut-off before full discharge 失效电子闪光器件在充放电之前具有电容放电截止
公开(公告)号：US4012665A
公开(公告)日：1977-03-15
申请号：US613470
申请日：1975-09-15
CPC分类号： H05B41/325 , H02M3/3384
摘要： The time period necessary to charge a current-to-light convertible energy storing capacitor to a certain voltage is reduced as compared with prior art devices. The energy storing capacitor is connected across a flash tube and switching element series-connected with each other. The switching element is provided with a control circuit, responsive to the voltage of the storage capacitor decreasing to a level at which the flash tube is stopped from producing flash light, for producing a terminating signal by which the switching element is brought into the open or non conducting state. With this arrangement, it is made possible to prevent complete discharge of the electric charge stored in the storage capacitor from occurring, thereby providing the advantage of saving a good fraction of the charging time period which would be otherwise necessary when the storage capacitor is completely discharged to zero voltage.
摘要翻译： 与现有技术的装置相比，将电流对光可转换储能电容器充电到一定电压所需的时间段减少。 储能电容器跨越闪光管和彼此串联连接的开关元件连接。 开关元件设置有控制电路，响应于存储电容器的电压降低到闪光管停止的水平而不产生闪光，用于产生终止信号，通过该终止信号使开关元件进入开路或 非导电状态。 通过这种布置，可以防止存储在存储电容器中的电荷的完全放电发生，从而提供了当存储电容器完全放电时否则需要的充电时间段的很大一部分的优点， 到零电压。
-
公开(公告)号：US4238149A
公开(公告)日：1980-12-09
申请号：US928791
申请日：1978-07-28
申请人： Takashi Uchiyama , Shohei Ohtaki , Zenzo Nakamura , Tokuichi Tsunekawa , Tadashi Ito , Hiroshi Aizawa
发明人： Takashi Uchiyama , Shohei Ohtaki , Zenzo Nakamura , Tokuichi Tsunekawa , Tadashi Ito , Hiroshi Aizawa
CPC分类号： G03B7/16
摘要： A shutter control circuit which normally responds to ambient light switches automatically to a flash mode in response to a charge signal from a flash unit. The light flash eliminates the charge signal. To prevent the absence of a charge signal from returning the shutter to daylight control, a shutter closing signal is generated before a flash synchronizing contact is closed and hence before the charge signal ends. However shutter closing action is then started only after a delay that provides time for the flash to occur when the shutter is fully open.
摘要翻译： 响应于来自闪光单元的充电信号，通常响应环境光的快门控制电路自动切换到闪光模式。 闪光灯消除了充电信号。 为了防止没有充电信号使快门返回到日光控制，在闪光同步触点闭合之前并且因此在充电信号结束之前产生快门关闭信号。 然而，只有在快门完全打开时，闪光灯提供时间的延迟之后才开始快门关闭动作。
-
公开(公告)号：US4100459A
公开(公告)日：1978-07-11
申请号：US671736
申请日：1976-03-30
申请人： Zenzo Nakamura , Syohei Ohtaki , Tokuichi Tsunekawa , Tadashi Ito , Hiroshi Aizawa , Takashi Uchiyama
发明人： Zenzo Nakamura , Syohei Ohtaki , Tokuichi Tsunekawa , Tadashi Ito , Hiroshi Aizawa , Takashi Uchiyama
CPC分类号： G03B17/20 , G03B15/05 , G03B2215/05
摘要： An electronic flash apparatus is provided with a display element positioned in the view-finder of a photographic camera so that the operator is immediately aware if the flash tube has been fired in response to the closure of the synchronous switch. The light emitting operation of this display element is controlled by use of a signal generator arranged to be responsive to the occurrence of discharge through the flash tube of the flash apparatus. With this apparatus, therefore, the operator may rely upon the appearance of this display element to insure that the firing is effected by the flash apparatus even when the object-to-camera distance is relatively small.
摘要翻译： 电子闪光装置设置有位于照相机的取景器中的显示元件，使得操作者立即知道闪光管是否已经响应于同步开关的闭合而被点亮。 该显示元件的发光操作通过使用信号发生器来控制，该信号发生器布置成响应于通过闪光装置的闪光灯管的放电发生。 因此，利用该装置，操作者可以依靠该显示元件的外观来确保即使当对象相机距离相对较小时，闪光装置也可以进行点火。
-
公开(公告)号：US4126877A
公开(公告)日：1978-11-21
申请号：US673053
申请日：1976-04-02
申请人： Syohei Ohtaki , Zenzo Nakamura , Tokuichi Tsunekawa , Tadashi Ito , Hiroshi Aizawa , Takashi Uchiyama
发明人： Syohei Ohtaki , Zenzo Nakamura , Tokuichi Tsunekawa , Tadashi Ito , Hiroshi Aizawa , Takashi Uchiyama
CPC分类号： G03B9/08 , G03B15/05 , G03B2215/0514 , G03B2215/056
摘要： The present invention relates to a safety device for exposure amount control equipment consisting of a camera and an electronic flash device, including a detecting circuit for detecting the charge voltage of the storage capacitor of the electronic flash device and the voltage of the power source and producing two different electrical signals in accordance with the detected voltages so as to prevent flash light photography with improper exposure amount and a lock member for preventing the movement of a shutter release mechanism of the camera in accordance with the electrical signal produced in the detecting circuit when the detected voltages are lower than a certain determined value.
摘要翻译： 本发明涉及一种由相机和电子闪光装置组成的曝光量控制装置的安全装置，包括用于检测电子闪光装置的存储电容器的充电电压的检测电路和电源的电压并产生 根据检测到的电压的两个不同的电信号，以便防止以不适当的曝光量进行的闪光灯拍摄;以及锁定构件，用于根据检测电路中产生的电信号防止相机的快门释放机构的移动， 检测电压低于某一确定值。
-
公开(公告)号：US4095242A
公开(公告)日：1978-06-13
申请号：US748155
申请日：1976-12-07
申请人： Tokuichi Tsunekawa , Masanori Uchidoi , Zenzo Nakamura , Tetsuya Taguchi , Hiroshi Aizawa , Takashi Uchiyama
发明人： Tokuichi Tsunekawa , Masanori Uchidoi , Zenzo Nakamura , Tetsuya Taguchi , Hiroshi Aizawa , Takashi Uchiyama
IPC分类号： G03B15/05
CPC分类号： G03B15/05 , G03B2215/056
摘要： An adapter matches an electronic flash unit with a single terminal carrying diaphragm and charge data to a camera having separate terminals for these data. A second adapter matches a flash unit having two terminals for diaphragm and charge data to a camera in which these data pass through a single terminal. Circuitry in the adapters combine or separate the data as needed.
-
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
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。
-
10.发明授权
公开(公告)号：US4047194A
公开(公告)日：1977-09-06
申请号：US575002
申请日：1975-05-06
申请人： Zenzo Nakamura , Takashi Uchiyama , Masanori Uchidoi , Tetsuya Taguchi , Hiroshi Aizawa , Tokuichi Tsunekawa
发明人： Zenzo Nakamura , Takashi Uchiyama , Masanori Uchidoi , Tetsuya Taguchi , Hiroshi Aizawa , Tokuichi Tsunekawa
CPC分类号： G03B7/16 , G03B15/05 , G03B7/083 , G03B2215/05
摘要： A camera system is composed of a flash and a camera in which the diaphragm and shutter time control as well as the indicating mechanism are automatically switched into a flash mode in response to the charge accumulation completion signal from the electronic flash discharge device.
摘要翻译： 相机系统由闪光灯和照相机组成，其中响应于来自电子闪光灯放电装置的电荷累积完成信号，光圈和快门时间控制以及指示机构自动切换到闪光模式。
-
-
-
-
-
-
-
-
-
搜索结果
128 条记录 (耗时 0.03 秒)
