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公开(公告)号：US4268139A
公开(公告)日：1981-05-19
申请号：US10904
申请日：1979-02-09
CPC分类号： G03B9/70
摘要： A flash unit triggering arrangement that cooperates with a shutter control mechanism or circuit of a camera for permitting the firing of a flash lamp of the flash unit in a time period during which the entire area of a film aperture of the camera remains unblocked to thereby avoid flash exposure of only a part of the film.
摘要翻译： 闪光灯单元触发装置与照相机的快门控制机构或电路配合，以允许在相机的胶片孔径的整个区域保持未被阻挡的时间段内闪光单元的闪光灯的点火，从而避免 闪光仅曝光一部分电影。
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公开(公告)号：US4295722A
公开(公告)日：1981-10-20
申请号：US104691
申请日：1979-12-17
CPC分类号： G03B9/70
摘要： A flash unit triggering arrangement that cooperates with a shutter control mechanism or circuit of a camera for permitting the firing of a flash lamp of the flash unit in a time period during which the entire area of a film aperture of the camera remains unblocked to thereby avoid flash exposure of only a part of the film.
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公开(公告)号：US3973267A
公开(公告)日：1976-08-03
申请号：US534578
申请日：1974-12-19
CPC分类号： G03B7/085
摘要： The present invention relates to an exposure control apparatus for a camera which is so designed that the output terminal of the light measuring circuit of the brightness of the object to be photographed having a photo electric transducing means is connected to one input terminal of an operation amplifier. The output of the photographing information setting circuit, having a variable resistance means for setting other photographing informations than the information of the brightness of the object to be photographed, is connected to the other input terminal of the above mentioned operation amplifier. This is done in such a manner that proper exposure conditions can be obtained by means of the output of the exposure control circuit connected to the output of the above mentioned operation amplifier. Each input signal to the operational amplifier is adjusted by a bias signal which is controlled in accordance with ambient temperature conditions.
摘要翻译： 本发明涉及一种照相机的曝光控制装置，其被设计成使得具有光电转换装置的被拍摄对象的亮度的光测量电路的输出端子连接到运算放大器的一个输入端 。 具有用于设置其他拍摄信息的可变电阻装置的拍摄信息设置电路的输出与被拍摄对象的亮度的信息相连接，连接到上述运算放大器的另一输入端。 这样可以通过连接到上述运算放大器的输出的曝光控制电路的输出来获得适当的曝光条件。 通过根据环境温度条件控制的偏置信号来调整到运算放大器的每个输入信号。
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公开(公告)号：US4086582A
公开(公告)日：1978-04-25
申请号：US711968
申请日：1976-08-05
申请人： Takehiko Kiyohara , Tokuichi Tsunekawa , Mutsunobu Yazaki , Noriaki Sanada , Tetsuya Taguchi , Zenzo Nakamura
发明人： Takehiko Kiyohara , Tokuichi Tsunekawa , Mutsunobu Yazaki , Noriaki Sanada , Tetsuya Taguchi , Zenzo Nakamura
CPC分类号： G03B15/05 , G03B7/16 , G03B2215/0503 , G03B2217/005
摘要： An exposure control device in which the output of a light measuring circuit which produces an electrical signal corresponding to the brightness of an object is compared with an output of a level signal circuit which produces an electrical signal of a predetermined level. When the compared value reaches a predetermined value, a flash circuit is made ready to flash, whereby the shutter time is changed over to a predetermined time suited for a flash photography and the flash circuit is made to flash in association with the shutter operation and the shutter is controlled with a constant time.
摘要翻译： 一种曝光控制装置，其将产生与物体的亮度相对应的电信号的光测量电路的输出与产生预定电平的电信号的电平信号电路的输出进行比较。 当比较值达到预定值时，使闪光灯准备闪光，由此将快门时间切换到适合于闪光摄影的预定时间，并且使快闪电路与快门操作相关联地闪烁，并且 快门以恒定时间控制。
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公开(公告)号：US4109257A
公开(公告)日：1978-08-22
申请号：US721368
申请日：1976-09-08
CPC分类号： G03B7/083 , G03B19/12 , G03B7/09976
摘要： In a reflex camera having a penta prism positioned in the view-finder thereof, there is provided a glass member having a reflactive index equal to or larger than that of the penta prism and positioned in intimately contacting relation with the exit surface of said penta prism to utilize that portion of a view-finder image forming light beam which is directed to the exit surface of said penta prism after successive reflection from the two roof surfaces, the front reflection surface and again the roof surfaces of the penta prism such light beam portion would be otherwise subject to the total reflection from the exit surface in vain in measuring the light at a central portion of the view-finder image as well as at any portions outside thereof. In this way it being made possible to operate the camera selectively in a spot-metering mode or overall field of view light metering mode by the use of a single light value sensing means without causing the reduction of quality of the view-finder image.
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公开(公告)号：US3996594A
公开(公告)日：1976-12-07
申请号：US621762
申请日：1975-10-14
IPC分类号： G03B7/099 , G03B7/0997 , G03B7/00 , G01J1/00
CPC分类号： G03B7/09976
摘要： An object image is formed on a screen by an objective lens. The light beam from the object image formed on the screen is guided in a direction to an eye piece by a pentagonal roof prism. Only one light measuring means is provided facing an upper part of the exit face of the pentagonal roof prism. Therefore, the light beam from the screen passing through the upper part of the pentagonal roof prism impinges into the light measuring means. Also the light beam from the screen passing through both left and right end parts of the exit face of the pentagonal roof prism is directed onto the light-measuring means through a reflective plane. A shutter means is provided at least for one of the luminous flux from the upper part of the pentagonal roof prism and the luminous flux from the both left and right end parts. The light measurement distribution in an object scene may be varied by the shutter means.
摘要翻译： 通过物镜在屏幕上形成物体图像。 来自形成在屏幕上的物体图像的光束通过五边形屋顶棱镜沿着朝向眼镜片的方向被引导。 仅面向五边形屋脊棱镜的出射面的上部设置一个光测量装置。 因此，通过五边形顶棱镜的上部的来自屏幕的光束入射到光测量装置中。 此外，来自屏幕的通过五边形屋顶棱镜的出射面的左右端部的光束也通过反射面引导到光测量装置上。 至少为五角形屋顶棱镜的上部的光通量和来自左右两端部的光通量中的一个提供快门装置。 物体场景中的光测量分布可以通过快门装置来改变。
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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。
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公开(公告)号：US4139278A
公开(公告)日：1979-02-13
申请号：US709077
申请日：1976-07-27
申请人： Seiichi Matsumoto , Tokuichi Tsunekawa , Takashi Uchiyama , Naoki Ayata , Yoji Matsufuji , Yukitoshi Ohkubo
发明人： Seiichi Matsumoto , Tokuichi Tsunekawa , Takashi Uchiyama , Naoki Ayata , Yoji Matsufuji , Yukitoshi Ohkubo
IPC分类号： G02F1/1343 , G03B17/20 , G02F1/13
CPC分类号： G02F1/134309 , G03B17/20
摘要： A liquid crystal display device has a power source, a voltage converter, a liquid crystal display cell and a control signal generator. The voltage supplied from the power source to the converter is converted into a voltage for operating the liquid crystal display cell and such converted voltage is supplied to the liquid crystal display cell while a control signal derived from the control signal generator is also applied to the liquid crystal display cell, thereby effecting display.
摘要翻译： 液晶显示装置具有电源，电压转换器，液晶显示单元和控制信号发生器。 从电源向转换器提供的电压被转换为用于操作液晶显示单元的电压，并且将这种转换的电压提供给液晶显示单元，同时从控制信号发生器得到的控制信号也被施加到液体 晶体显示单元，从而进行显示。
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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。
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公开(公告)号：US4181415A
公开(公告)日：1980-01-01
申请号：US776479
申请日：1977-03-10
申请人： Takashi Uchiyama , Ryoichi Suzuki , Tokuichi Tsunekawa , Fumio Ito , Mutsuhide Matsuda , Hiroshi Furukawa
发明人： Takashi Uchiyama , Ryoichi Suzuki , Tokuichi Tsunekawa , Fumio Ito , Mutsuhide Matsuda , Hiroshi Furukawa
CPC分类号： G03B17/52 , G03B15/05 , G03B17/04 , G03B7/16 , G03B2215/0507
摘要： In an instant, self-developing, and folding camera, a built-in flash unit is disabled as long as the camera is folded. According to another aspect, the flash is disabled after each photograph until the feed motor that drives the film during development has completed its operation. A collapsible bellows forms a dark space between first and second housing sections. When the bellows are folded the flash is drawn to the first section by coupling means. When the bellows are extended the coupling means draws the flash into an operative position.
摘要翻译： 立即，自行开发和折叠式相机，只要相机折叠，内置闪光灯即被禁用。 根据另一方面，在每张照片之后禁用闪光灯，直到在显影期间驱动胶片的进给马达完成其操作。 可折叠波纹管在第一和第二壳体部分之间形成暗空间。 当波纹管折叠时，闪光灯通过耦合装置被吸入第一部分。 当波纹管伸出时，联接装置将闪光灯吸入工作位置。
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