公开(公告)号：US4219260A

公开(公告)日：1980-08-26

申请号：US883904

申请日：1978-03-06

申请人： Nobuaki Date ,  Masanori Uchidoi ,  Hiroshi Aizawa ,  Masami Shimizu ,  Yoshiyuki Takishima

发明人： Nobuaki Date ,  Masanori Uchidoi ,  Hiroshi Aizawa ,  Masami Shimizu ,  Yoshiyuki Takishima

IPC分类号： G03B7/083 ,  G03B9/64 ,  G05B13/02

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。

公开(公告)号：US4215925A

公开(公告)日：1980-08-05

申请号：US890944

申请日：1978-03-28

申请人： Nobuaki Date ,  Hiroshi Aizawa ,  Teiji Hashimoto

发明人： Nobuaki Date ,  Hiroshi Aizawa ,  Teiji Hashimoto

IPC分类号： G03B19/12 ,  G03B9/34

CPC分类号： G03B9/34

摘要： A focal plane shutter adapted for use in a single lens reflex camera and having front and rear curtains with respective charge control gears to be operated in engagement with each other during the winding process. At the terminal end of one cycle of winding operation, these gears are released from positive connection with a film winding mechanism, while the front and rear curtains are held in their cocked positions by separate latches in at least a time interval between a moment at which the diaphragm starts to move and a moment at which the mirror flips out of way to actuate release of the front curtain, thereby an electromagnetic release control for the rear curtain latch is prevented from being disturbed as by a shock which would be otherwise exerted on the rear curtain latch at the start of movement of the front curtain.

摘要翻译： 适用于单镜头反光相机的焦平面快门，并具有带有相应充电控制齿轮的前帘和后帘，以在卷绕过程中彼此接合。 在卷绕操作的一个循环的末端，这些齿轮与膜卷绕机构的正连接释放，而前帘和后帘通过分开的锁闩在至少一个时间间隔内保持在其压缩位置， 隔膜开始移动，并且反射镜翻转的时刻，以致致动前帘的释放，从而防止后幕帘闩锁的电磁释放控制被冲击所影响，否则会产生冲击 前幕帘开始运动时的后窗帘闩锁。

公开(公告)号：US4204762A

公开(公告)日：1980-05-27

申请号：US942031

申请日：1978-09-13

申请人： Nobuaki Date ,  Hiroshi Aizawa ,  Masanori Uchidoi ,  Masami Shimizu ,  Teiji Hashimoto

发明人： Nobuaki Date ,  Hiroshi Aizawa ,  Masanori Uchidoi ,  Masami Shimizu ,  Teiji Hashimoto

IPC分类号： G03B9/28 ,  G03B9/32

CPC分类号： G03B9/32

摘要： In a focal plane shutter having two curtains which unwind from shafts after being released, the shaft controls a master gear, causing a keying pin on the latter to activate braking action on the curtain at a time interval near the terminal end of running-down movement of the curtain, as a pair of heavy expanding frictional shoes are driven to rotate at accelerated speeds and pressed against the internal surface of a fixed drum by a centrifugal force. During the shutter cocking operation, the key is taken out of connection with the brake so that the driving torque of the film winding shaft is correspondingly decreased.

摘要翻译： 在具有两个窗帘的焦平面挡板中，该帘幕在松开之后从轴展开，该轴控制主齿轮，使其上的键锁销在后退运动终端附近的时间间隔上启动帘幕上的制动作用 的帘子，因为一对重的膨胀摩擦鞋被驱动以加速的速度旋转并通过离心力压靠在固定的滚筒的内表面上。 在快门启动操作期间，钥匙与制动器连接而取出，使得卷绕轴的驱动扭矩相应地减小。

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

IPC分类号： G03B7/08 ,  G03B17/00 ,  G03B17/42 ,  G03B7/10 ,  G03B1/18

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。

公开(公告)号：US3999197A

公开(公告)日：1976-12-21

申请号：US609438

申请日：1975-09-02

申请人： Tomonori Iwashita ,  Shohei Ohtaki ,  Susumu Kozuki ,  Nobuaki Date ,  Soichi Nakamoto

发明人： Tomonori Iwashita ,  Shohei Ohtaki ,  Susumu Kozuki ,  Nobuaki Date ,  Soichi Nakamoto

IPC分类号： G03B1/04 ,  G03B17/42 ,  G03B1/18

CPC分类号： G03B17/425 ,  G03B1/04

摘要： A film rewinding device for a camera using a motor for rewinding film. Upon completion of film rewinding, the device automatically stops the film rewinding operation with detecting means disposed in the device to detect the completion of film rewinding. This is done by utilizing the difference between the load on the motor during the rewinding operation and the load at the completion of the rewinding operation.

摘要翻译： 一种用于使用用于重绕胶片的电动机的相机的胶片倒带装置。 在完成胶卷倒带时，设备通过设置在设备中的检测装置自动停止胶片倒带操作，以检测胶卷倒带的完成。 这是通过利用重绕操作期间电机上的负载与完成重绕操作时的负载之间的差异来完成的。