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61. 发明授权

US4215925A Photographic curtain-type shutter with electromagnetic actuation control 失效
标题翻译：具有电磁启动控制的摄影幕式快门
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。

62. 发明授权

US4204762A Centrifugal brakes for focal plane shutters 失效
标题翻译：焦平面百叶窗的离心式制动器
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。

63. 发明授权

US4176936A Motor drive unit for a camera 失效
标题翻译：摄像机的电机驱动单元
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。

64. 发明授权

US4096493A Photographic camera having electromagnetic diaphragm control 失效
标题翻译：照相机具有电磁光阑控制
公开(公告)号：US4096493A
公开(公告)日：1978-06-20
申请号：US731939
申请日：1976-10-13
申请人： Akio Sunouchi , Yoshiaki Watanabe , Fumio Ito , Yukio Mashimo , Nobuaki Date , Tadashi Ito
发明人： Akio Sunouchi , Yoshiaki Watanabe , Fumio Ito , Yukio Mashimo , Nobuaki Date , Tadashi Ito
IPC分类号： G03B7/0805 , G03B7/091 , G03B9/07 , G03B19/12 , G03B7/08
CPC分类号： G03B19/12 , G03B7/097 , G03B9/07
摘要： A photographic camera having a manually and automatically adjustable diaphragm is provided with an electromagnetically operated diaphragm scanning mechanism in combination with a manually operable depth of field pre-viewing device to enable a visual determination of the utilizable zone of sharpness in a reflex viewfinder of the camera regardless of the fact that the camera remains in the run down position. For this purpose, the diaphragm scanning mechanism includes a scanning member and a driving member arranged to establish driving connection therebetwen during the automatic adjustment of the diaphragm. Release means is provided and is responsive to the termination of closing operation of the camera shutter for effecting release of the driving connection, whereby the photographer before cocking the camera is enabled to manipulate the diaphragm followed by the pre-viewing device to read off the range of sharpness in dependence on the manual setting of the diaphragm for use in making a subsequent exposure.
摘要翻译：具有手动和可自动调节的光圈的照相机设置有电磁操作的隔膜扫描机构，与手动可操作的景深预先观察装置相结合，以使得能够可视地确定相机的反射取景器中的清晰度的可利用区域不管相机是否处于运行状态。为此，隔膜扫描机构包括扫描构件和布置成在隔膜的自动调节期间建立驱动连接的驱动构件。提供释放装置并且响应于照相机快门的关闭操作的终止以实现驱动连接的释放，由此在启动相机之前的拍摄者能够操纵隔膜，然后是预先观看装置以读出该范围根据用于进行后续曝光的隔膜的手动设置而具有清晰度。

65. 发明授权

US3999197A Film rewinding device for cameras 失效
标题翻译：相机胶卷倒带装置
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。

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