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1. 发明授权

US4065777A Photometric apparatus for single lens reflex camera 失效
标题翻译：单镜反光相机光度测量仪
公开(公告)号：US4065777A
公开(公告)日：1977-12-27
申请号：US717089
申请日：1976-08-24
申请人： Yoshihisa Maitani , Kunio Shimoyama , Muneaki Yoshida , Akihiko Hashimoto , Masahiro Kitagawa
发明人： Yoshihisa Maitani , Kunio Shimoyama , Muneaki Yoshida , Akihiko Hashimoto , Masahiro Kitagawa
IPC分类号： G03B7/083 , G03B7/099 , G03B7/08
CPC分类号： G03B7/083 , G03B7/09974
摘要： A photometric apparatus for single lens reflex camera and of the type in which an exposure value is determined by photometry of light which is transmitted through a photographic optical system and is reflected by at least one of the surfaces of a shutter blind and a film, said apparatus comprising a photoelectric transducer element for receiving light reflected by at least one of the surfaces of a shutter blind and a film, and an operational amplifier for biasing the photoelectric transducer element to maintain the voltage applied thereacross substantially null, thereby enabling a photometric output of the photoelectric transducer element to be effectively derived even when the amount of light received is minimal. The shutter blind is provided with a surface upon which at least two portions thereof have different coefficients of reflectivity to reduce adverse effects of reflected light upon the desired exposure period.
摘要翻译：一种用于单镜头反光照相机的测光装置，其中曝光值由通过照相光学系统透射并由快门帘和薄膜的至少一个表面反射的光的测光确定的类型，所述光测量装置该装置包括用于接收由快门遮罩和薄膜的至少一个表面反射的光的光电换能器元件和用于偏置光电换能器元件的运算放大器，以保持其上施加的电压基本上为零，从而使得能够进行光度输出即使当接收到的光量很小时，光电传感器元件也被有效地导出。百叶窗具有表面，在该表面上，其至少两部分具有不同的反射系数，以减少反射光对所需曝光周期的不利影响。

2. 发明授权

US3994001A Photometric apparatus for single lens reflex camera 失效
标题翻译：单镜反光相机光度测量仪
公开(公告)号：US3994001A
公开(公告)日：1976-11-23
申请号：US505956
申请日：1974-09-13
申请人： Yoshihisa Maitani , Kunio Shimoyama , Muneaki Yoshida , Akihiko Hashimoto , Masahiro Kitagawa
发明人： Yoshihisa Maitani , Kunio Shimoyama , Muneaki Yoshida , Akihiko Hashimoto , Masahiro Kitagawa
IPC分类号： G01J1/44 , G03B7/083 , G03B7/099 , G03B7/0997 , G03B9/28 , G03B9/32 , G03B9/62 , G03B7/08
CPC分类号： G03B9/32 , G03B7/083 , G03B7/09974 , G03B7/09976 , G03B9/62
摘要： A photometric apparatus for single lens reflex camera and of the type in which an exposure value is determined by photometry of light which is transmitted through a photographic optical system and is reflected by at least one of the surfaces of a shutter blind and a film, said apparatus comprising a photoelectric transducer element for receiving light reflected by at least one of the surfaces of a shutter blind and a film, and an operational amplifier for biasing the photoelectric transducer element to maintain the voltage applied thereacross substantially null, thereby enabling a photometric output of the photoelectric transducer element to be effectively derived even when the amount of light received is minimal.
摘要翻译：一种用于单镜头反光照相机的测光装置，其中曝光值由通过照相光学系统透射并由快门帘和薄膜的至少一个表面反射的光的测光确定的类型，所述光测量装置该装置包括用于接收由快门遮罩和薄膜的至少一个表面反射的光的光电换能器元件和用于偏置光电换能器元件的运算放大器，以保持其上施加的电压基本上为零，从而使得能够进行光度输出即使当接收到的光量很小时，光电传感器元件也被有效地导出。

3. 发明授权

US4104654A Photometric apparatus for single lens reflex camera 失效
标题翻译：单镜反光相机光度测量仪
公开(公告)号：US4104654A
公开(公告)日：1978-08-01
申请号：US717087
申请日：1976-08-24
申请人： Yoshihisa Maitani , Kunio Shimoyama , Muneaki Yoshida , Akihiko Hashimoto , Masahiro Kitagawa
发明人： Yoshihisa Maitani , Kunio Shimoyama , Muneaki Yoshida , Akihiko Hashimoto , Masahiro Kitagawa
IPC分类号： G03B7/083 , G03B7/099 , G03B7/08
CPC分类号： G03B7/083 , G03B7/09974 , G03B7/09976
摘要： A photometric apparatus for single lens reflex camera and of the type in which an exposure value is determined by photometry of light which is transmitted through a photographic optical system and is reflected by at least one of the surfaces of a shutter blind and a film, said apparatus comprising a photoelectric transducer element for receiving light reflected by at least one of the surfaces of a shutter blind and a film, and an operational amplifier for biasing the photoelectric transducer element to maintain the voltage applied thereacross substantially null, thereby enabling a photometric output of the photoelectric transducer element to be effectively derived even when the amount of light received is minimal. A second photoelectric transducer element is provided for receiving reflected light from the reflecting mirror that is adapted to be switched between the viewfinder light path and the photographic light path and display means for displaying the operation of the shutter dependent upon the light which is incident upon the aforesaid second transducer element.
摘要翻译：一种用于单镜头反光照相机的测光装置，其中曝光值由通过照相光学系统透射并由快门帘和薄膜的至少一个表面反射的光的测光确定的类型，所述光测量装置该装置包括用于接收由快门遮罩和薄膜的至少一个表面反射的光的光电换能器元件和用于偏置光电换能器元件的运算放大器，以保持其上施加的电压基本上为零，从而使得能够进行光度输出即使当接收到的光量很小时，光电传感器元件也被有效地导出。第二光电换能器元件被提供用于接收来自反射镜的反射光，其适于在取景器光路和摄影光路之间切换，以及显示装置，用于显示取决于入射在该光源上的光的快门的操作上述第二换能器元件。

4. 发明授权

US4064517A Photometric apparatus for single lens reflex camera 失效
标题翻译：单镜反光相机光度测量仪
公开(公告)号：US4064517A
公开(公告)日：1977-12-20
申请号：US717088
申请日：1976-08-24
申请人： Yoshihisa Maitani , Kunio Shimoyama , Muneaki Yoshida , Akihiko Hashimoto , Masahiro Kitagawa
发明人： Yoshihisa Maitani , Kunio Shimoyama , Muneaki Yoshida , Akihiko Hashimoto , Masahiro Kitagawa
IPC分类号： G03B7/083 , G03B7/099 , G03B7/08 , G03B17/20
CPC分类号： G03B7/083 , G03B7/09974 , G03B7/09976
摘要： A photometric apparatus for single lens reflex camera and of the type in which an exposure value is determined by photometry of light which is transmitted through a photographic optical system and is reflected by at least one of the surfaces of a shutter blind and a film, said apparatus comprising a photoelectric transducer element for receiving light reflected by at least one of the surfaces of a shutter blind and a film, and an operational amplifier for biasing the photoelectric transducer element to maintain the voltage applied thereacross substantially null, thereby enabling a photometric output of the photoelectric transducer element to be effectively derived even when the amount of light received is minimal. The photometric apparatus, including a photoelectric transducer element, a photometry switch and associated circuitry are mounted upon a printed circuit board mounted within the camera to position the transducer element to receive reflected light from the film or the shutter.
摘要翻译：一种用于单镜头反光照相机的测光装置，其中曝光值由通过照相光学系统透射并由快门帘和薄膜的至少一个表面反射的光的测光确定的类型，所述光测量装置该装置包括用于接收由快门遮罩和薄膜的至少一个表面反射的光的光电换能器元件和用于偏置光电换能器元件的运算放大器，以保持其上施加的电压基本上为零，从而使得能够进行光度输出即使当接收到的光量很小时，光电传感器元件也被有效地导出。包括光电换能器元件，测光开关和相关电路的测光装置安装在安装在相机内的印刷电路板上，以定位换能器元件以接收来自胶片或快门的反射光。

5. 发明授权

US4074290A Apparatus for synchronizing an electronic flash with a camera 失效
标题翻译：用于与相机同步电子闪光灯的装置
公开(公告)号：US4074290A
公开(公告)日：1978-02-14
申请号：US631935
申请日：1975-11-14
申请人： Soichiro Matsuzaki , Yoshihisa Maitani , Kunio Shimoyama , Isao Kondo
发明人： Soichiro Matsuzaki , Yoshihisa Maitani , Kunio Shimoyama , Isao Kondo
IPC分类号： G03B15/05 , G03B7/16
CPC分类号： G03B15/05 , G03B2215/05
摘要： An apparatus for activating an electronic flash by operating an X contact when the first blind of a focal plane shutter has terminated its movement to fully open an exposure light path, irrespective of an exposure period establishing operation. Where an electronic focal plane shutter is combined with an auto-strobo, a photometric circuit within the electronic circuit is used to measure the radiation from the auto-strobo, and to control the amount of exposure to a proper value. Where a proper amount of exposure is available by natural light when the shutter is opened, a closing movement of the shutter is utilized to cause the trigger capacitor of the electronic flash to be discharged, thereby disabling the illumination of the electronic flash.

6. 发明授权

US3987468A Apparatus for synchronizing an electronic flash with a camera 失效
标题翻译：用于使电子闪光灯与相机同步的装置
公开(公告)号：US3987468A
公开(公告)日：1976-10-19
申请号：US504856
申请日：1974-09-11
申请人： Soichiro Matsuzaki , Yoshihisa Maitani , Kunio Shimoyama , Isao Kondo
发明人： Soichiro Matsuzaki , Yoshihisa Maitani , Kunio Shimoyama , Isao Kondo
IPC分类号： G03B15/05 , G03B15/03
CPC分类号： G03B15/05 , G03B2215/05
摘要： An apparatus for activating an electronic flash by operating an X contact when the first blind of a focal plane shutter has terminated its movement to fully open an exposure light path, irrespective of an exposure period establishing operation. Where an electronic focal plane shutter is combined with an auto-strobo, a photometric circuit within the electronic circuit is used to measure the radiation from the auto-strobo, and to control the amount of exposure to a proper value. Where a proper amount of exposure is available by natural light when the shutter is opened, a closing movement of the shutter is utilized to cause the trigger capacitor of the electronic flash to be discharged, thereby disabling the illumination of the electronic flash.
摘要翻译：无论曝光周期建立操作如何，通过在焦平面快门的第一盲孔终止其移动以完全打开曝光光路的情况下通过操作X触点来激活电子闪光灯的装置。在电子焦平面快门与自动频闪组合的情况下，电子电路内的测光电路用于测量来自自动频闪的辐射，并将曝光量控制在合适的值。当快门打开时，通过自然光可以获得适当的曝光量，利用快门的关闭运动使电子闪光灯的触发电容器放电，从而禁止电子闪光灯的照明。

7. 发明授权

US4272176A Camera having an acoustic indicator for generating sounds to indicate the status of certain operating conditions 失效
标题翻译：相机具有用于产生声音的声音指示符，以指示某些操作条件的状态
公开(公告)号：US4272176A
公开(公告)日：1981-06-09
申请号：US950851
申请日：1978-10-12
申请人： Yoshihisa Maitani , Isao Kondo , Kazuyuki Nemoto , Masahiro Kitagawa
发明人： Yoshihisa Maitani , Isao Kondo , Kazuyuki Nemoto , Masahiro Kitagawa
IPC分类号： G03B7/08 , G03B17/18 , G03B17/20 , G03B17/40
CPC分类号： G03B17/18 , G03B7/0807
摘要： A camera includes a circuit which determines the level of a supply voltage and a self-timer delay circuit associated with an electrical shutter. The camera also includes an acoustic indicator which includes a pulse oscillator and a small size acoustic alarm unit and which operates to produce a sound substantially continuously to indicate the level of the supply voltage and to produce a sound intermittently in order to indicate that the self-timer is in operation.
摘要翻译：相机包括确定电源电压的电平的电路和与电快门相关联的自拍延迟电路。照相机还包括声指示器，其包括脉冲振荡器和小尺寸声学警报单元，其操作以基本连续地产生声音以指示电源电压的电平并间歇地产生声音，定时器正在运行。

8. 发明授权

US4001845A Electrical shutter circuit for camera 失效
标题翻译：摄像机电子快门电路
公开(公告)号：US4001845A
公开(公告)日：1977-01-04
申请号：US555373
申请日：1975-03-05
申请人： Yoshihisa Maitani , Akihiko Hashimoto
发明人： Yoshihisa Maitani , Akihiko Hashimoto
IPC分类号： G03B7/083 , G03B9/62 , G03B17/20 , G03B7/08
CPC分类号： G03B7/083 , G03B9/62
摘要： An electrical shutter circuit for a camera includes a photoelectric transducer element which is responsive to light from an object being photographed to determine a proper exposure period in accordance with the brightness thereof, thus automatically controlling the operation of a shutter assembly which opens or closes an exposure light path. In the open position of the shutter assembly, the photoelectric transducer element is irradiated with light of a fixed, relatively low intensity emitted by a luminescent element so that the electrical shutter circuit is automatically operated for the closing operation after a period of time determined by the light from the luminescent element even if the incident light from the object being photographed is extremely weak or completely absent.

9. 发明授权

US4024553A Electrical focal plane shutter with mechanical control mechanism operative upon electromagnetic failure 失效
标题翻译：具有机械控制机构的电焦平面快门在电磁故障时起作用
公开(公告)号：US4024553A
公开(公告)日：1977-05-17
申请号：US577697
申请日：1975-05-15
申请人： Yoshihisa Maitani , Akihiko Hashimoto , Fujio Enomoto
发明人： Yoshihisa Maitani , Akihiko Hashimoto , Fujio Enomoto
IPC分类号： G03B7/26 , G03B9/08 , G03B9/32 , G03B9/58 , G03B9/34
CPC分类号： G03B9/32 , G03B9/58
摘要： An electrical focal plane shutter is provided of a type in which subsequent to a running of a first blind of the shutter, a second blind of the shutter is constrained from movement by an electromagnet until a desired exposure period passes, whereupon the electromagnet is deenergized to permit a running of the second blind. The electromagnet is controlled by an electromagnet control device including a light receiving element which is used for photometry. The shutter includes a shutter detent mechanism for preventing a shutter release operation when an electric storage battery contained in an associated camera is exhausted. The shutter further includes a high speed shutter operation control mechanism which assures against the instability of the operation of the electromagnet when the shutter is operating at a high speed, and also includes a manual shutter control mechanism for establishing a shutter operation period of a given length in a purely mechanical manner.
摘要翻译：提供了一种电焦平面快门，其中在快门的第一盲人行进之后，快门的第二个遮挡物被电磁铁的运动限制到所需的曝光周期过去，于是电磁体被断电到允许第二个盲人的跑步。电磁体由包括用于测光的光接收元件的电磁控制装置控制。快门包括用于当包含在相关联的照相机中的蓄电池耗尽时防止快门释放操作的快门定位机构。快门进一步包括高速快门操作控制机构，其确保当快门以高速操作时电磁体的操作的不稳定性，并且还包括用于建立给定长度的快门操作周期的手动快门控制机构以纯粹的机械方式。

10. 发明授权

US4190335A Shutter controlling aid means for use with camera 失效
标题翻译：用于摄像机的快门控制辅助装置
公开(公告)号：US4190335A
公开(公告)日：1980-02-26
申请号：US841948
申请日：1977-10-13
申请人： Yoshihisa Maitani
发明人： Yoshihisa Maitani
IPC分类号： G03B7/16 , G03B9/70 , G03B15/05
CPC分类号： G03B15/05 , G03B2215/05
摘要： A means is provided for use with a camera of the type having an electrical shutter and which is adapted to utilize a strobo unit. The said means comprises a first circuit including a capacitor and a resistor connected in series across the X contacts of said camera and a second circuit connected with said first circuit and producing a shutter closing signal. The capacitor is charged by power means in the strobo unit. The X contacts close to cause the strobo unit flash means to operate and, at the same time, discharging said first circuit means and triggering the second circuit means to produce a shutter closing signal for closing the shutter at that time unless the shutter has already been closed. Additional circuit means may be provided between said first and second means for delaying operation of said second circuit means.
摘要翻译：提供了一种与具有电快门类型的照相机一起使用并且适于利用闪光灯单元的装置。所述装置包括第一电路，包括电容器和串联连接在所述相机的X触点上的电阻器，以及与所述第一电路连接并产生快门关闭信号的第二电路。电容器由闪光灯单元中的电源装置充电。 X触点靠近使闪光灯闪光装置工作，并且同时放电所述第一电路装置并触发第二电路装置以产生用于在此时关闭快门的快门关闭信号，除非快门已经被关闭。可以在所述第一和第二装置之间提供附加电路装置，用于延迟所述第二电路装置的操作。

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