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81. 发明授权

US5268730A Automatic light modulating camera 失效
标题翻译：自动调光摄像头
公开(公告)号：US5268730A
公开(公告)日：1993-12-07
申请号：US672055
申请日：1991-03-13
申请人： Tadao Takagi
发明人： Tadao Takagi
IPC分类号： G03B7/099 , G03B7/16 , G03B15/05
CPC分类号： G03B7/16 , G03B7/09974 , G03B7/09976 , G03B7/09979
摘要： An automatic light modulating camera effecting a preliminary light emission and a main light emission, extracts effective light metering areas from plural light metering areas based on the light metering signals obtained at the preliminary light emission and on lens signals indicating the states of a phototaking lens at the preliminary light emission, and terminates the main light emission based on the light metering signals obtained in the effective light metering areas.

82. 发明授权

US4769666A Apparatus for determining amount of flash 失效
标题翻译：用于确定闪光量的装置
公开(公告)号：US4769666A
公开(公告)日：1988-09-06
申请号：US947986
申请日：1986-12-31
申请人： Toshiyuki Kumakura
发明人： Toshiyuki Kumakura
IPC分类号： G01J1/42 , G03B7/16 , G03B7/28 , G03B7/00
CPC分类号： G03B7/16 , G03B7/09972 , G03B7/09974 , G03B7/09979
摘要： An apparatus for determining the amount of flash having a first light receiving element for measuring light with respect to a first region (central region) of the frame, a second light receiving element for measuring light with respect to a second region (marginal region). The apparatus determines the amount of flash in accordance with the ratio of the outputs per unit area of the first and second light receiving elements.
摘要翻译：一种用于确定具有相对于所述框架的第一区域（中心区域）测量光的第一光接收元件的闪光量的装置，用于相对于第二区域（边缘区域）测量光的第二光接收元件。该装置根据第一和第二光接收元件的每单位面积的输出的比率来确定闪光量。

83. 发明授权

US4477172A Light measuring device for camera 失效
标题翻译：照相机测光装置
公开(公告)号：US4477172A
公开(公告)日：1984-10-16
申请号：US403337
申请日：1982-07-30
申请人： Hideo Yokota
发明人： Hideo Yokota
IPC分类号： G03B7/099 , G02B5/04 , G03B17/20
CPC分类号： G03B7/09974
摘要： A light measuring device for cameras with a photosensitive element positioned to receive light reflected from a film surface or shutter surface. A collection lens and a diffusion plate having a plurality of stages of different diffusing characteristics are placed between the reflecting surface and the photosensitive element. The light measuring regions can be changed over as the stages of the diffusion plate are selectively put in the path of the light traveling to the photosensitive element.
摘要翻译：一种用于相机的光测量装置，其具有定位成接收从膜表面或快门表面反射的光的感光元件。具有多个不同扩散特性的阶段的收集透镜和扩散板被放置在反射表面和感光元件之间。可以随着扩散板的阶段选择性地放入到光敏元件的光的路径中，来改变光测量区域。

84. 发明授权

US4461559A Exposure ascertaining device for cameras 失效
标题翻译：相机曝光确定装置
公开(公告)号：US4461559A
公开(公告)日：1984-07-24
申请号：US467792
申请日：1983-02-18
申请人： Fumiaki Hiraike
发明人： Fumiaki Hiraike
IPC分类号： G03B7/099 , G03B17/18
CPC分类号： G03B7/09974 , G03B7/09973
摘要： An exposure ascertaining device for cameras in which the movement of a movable member adapted to be moved when the film is exposed is ascertained on the basis of an output from a photoelectric element disposed in a position where said photoelectric element can receive the incident light advancing toward a film-set side of the camera. The photoelectric element is provided on the movable member, or disposed in a position where it can receive that part of the incident light which does not enter the image forming part of the surface of a film.
摘要翻译：根据设置在所述光电元件能够接收入射光的位置的光电元件的输出，确定适用于当胶片曝光时适于移动的可移动部件的移动的照相机的曝光确定装置相机的电影一面。光电元件设置在可动构件上，或设置在能够接收入射光的部分而不进入形成薄膜表面的图像的位置的位置。

85. 发明授权

US4453813A Photometric device for single-lens reflex camera 失效
标题翻译：用于单镜头反光相机的光度测量装置
公开(公告)号：US4453813A
公开(公告)日：1984-06-12
申请号：US358295
申请日：1982-03-15
申请人： Sadahiko Tsuji
发明人： Sadahiko Tsuji
IPC分类号： G01J1/04 , G03B7/099 , G03B7/0997 , G03B7/00
CPC分类号： G03B7/09974
摘要： The disclosed photometric device measures light from an image formed on a focal plane and permits alterations in the portion of light distribution measured. The device has a hood at least partially disposed before a light receiving element which receives a light from the image formed on the focal plane. The light distribution measurement can be changed by moving the hood back and forth relative to the light receiving element.
摘要翻译：所公开的测光装置测量来自形成在焦平面上的图像的光，并允许测量的光分布部分的变化。该装置具有至少部分地设置在接收来自形成在焦平面上的图像的光的光接收元件之前的罩。可以通过相对于光接收元件前后移动罩来改变光分布测量。

86. 发明授权

US4392728A Camera with focal-plane shutter having contrast control 失效
标题翻译：具有对焦控制的焦平面快门的相机
公开(公告)号：US4392728A
公开(公告)日：1983-07-12
申请号：US381944
申请日：1982-05-26
申请人： Muneaki Yoshida
发明人： Muneaki Yoshida
IPC分类号： G03B7/099 , G03B7/0997 , G03B9/28 , G03B7/08
CPC分类号： G03B7/09974
摘要： A camera comprises a focal-plane shutter having a front curtain and a rear curtain. The front curtain comprises a center portion thereof being formed into a low reflection portion and a rear end portion being at least formed into a high reflection portion as compared with the center portion in the running direction of the front curtain.
摘要翻译：相机包括具有前幕和后帘的焦平面快门。前帘包括其中心部分形成为低反射部分，并且后端部分与前帘幕的行进方向上的中心部分相比至少形成为高反射部分。

87. 发明授权

US4172646A Device to control introduction of diffracted beam by means of diffraction element 失效
$Device to control introduction of diffracted beam by means of diffraction element$
标题翻译：通过衍射元件控制衍射光束的引入的装置
公开(公告)号：US4172646A
公开(公告)日：1979-10-30
申请号：US812778
申请日：1977-07-05
申请人： Kazuya Matsumoto
发明人： Kazuya Matsumoto
IPC分类号： G02B5/32 , G02B27/10 , G03B7/099 , G03B19/12 , G03B17/20
CPC分类号： G02B27/144 , G02B27/108 , G02B27/1086 , G02B5/32 , G03B19/12 , G03B7/09973 , G03B7/09974 , G03B7/09976
摘要： According to the present invention in the image forming light path a direction-selective diffraction element is provided in such a manner that the image forming beam having entered into said diffraction element is diffracted by means of the diffraction grating structure of said diffraction element and divided into a plurality of beams, whereby at least one of the diffracted beams is led to a photo detecting device while the not diffracted beam is made use of as the image forming beam.
摘要翻译：根据本发明，在图像形成光路中，方向选择性衍射元件以这样一种方式被提供，使得已经进入所述衍射元件的图像形成光束通过所述衍射元件的衍射光栅结构被衍射，并被分成多个光束，其中至少一个衍射光束被引导到光检测装置，而不衍射光束被用作成像光束。

88. 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。

89. 发明授权

US4089015A Dual function exposure time display and control circuit for SLR camera 失效
标题翻译：双功能曝光时间显示和控制电路为单反相机
公开(公告)号：US4089015A
公开(公告)日：1978-05-09
申请号：US750344
申请日：1976-12-13
申请人： Naoyuki Uno , Masahiro Kawasaki
发明人： Naoyuki Uno , Masahiro Kawasaki
IPC分类号： G01J1/42 , G03B7/083 , G03B7/099 , G03B7/0997 , G03B7/08 , G03B7/00
CPC分类号： G03B7/083 , G01J1/4214 , G03B7/09974
摘要： A light meter circuit for an SLR camera implements full aperture viewfinding with a preselected exposure time by providing an integrating capacitor 25 for controlling the exposure time, a first switch 24 for enabling the charging of the capacitor, circuit means 26, 29 for controlling the charging of the capacitor, a variable resistor 30 for establishing the lens aperture value in an exposure time display mode, a fixed resistor 31 for establishing the aperture value in an exposure time control mode, and a second switch 32 for connecting one of the resistors to an input of the charging control circuit. When the shutter release button is depressed the second switch is transferred from the variable to the fixed resistor, and the first switch is subsequently opened to enable the charging of the capacitor.
摘要翻译：用于单反相机的光计电路通过提供用于控制曝光时间的积分电容器25来实现具有预选曝光时间的全光学取景，用于使电容器充电的第一开关24，用于控制充电的电路装置26,29 的电容器，用于在曝光时间显示模式下建立透镜孔径值的可变电阻器30，用于在曝光时间控制模式下建立光圈值的固定电阻器31和用于将电阻器中的一个连接到充电控制电路的输入。当快门释放按钮被按下时，第二开关从变量传送到固定电阻器，并且随后打开第一开关以使电容器充电。

90. 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。

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