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公开(公告)号：US5079582A
公开(公告)日：1992-01-07
申请号：US456157
申请日：1989-10-20
申请人： Masataka Hamada , Tokuji Ishida , Yasuaki Akada
发明人： Masataka Hamada , Tokuji Ishida , Yasuaki Akada
IPC分类号： G02B7/36
CPC分类号： G02B7/36
摘要： An automatic focus adjusting apparatus for automatically adjusting a focus condition of an objective lens, the automatic focus adjusting apparatus repetitively effecting focus detection, in-focus judgement, and lens driving. If the lens cannot be regarded as being in focus as a result of a standard focus detection, then on the one hand, when the deviation from the in-focus point is small, lens driving is effected and in-focus is judged to quickly arrive at a judgement of in-focus, and on the other hand, when the deviation from the in-focus point is large, a judgment of in-focus based on the deviation from the in-focus point being small is inhibited to thereby enable the lens to be fully driven and a standard in-focus judging operation to be accomplished.
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公开(公告)号：US5019851A
公开(公告)日：1991-05-28
申请号：US350518
申请日：1989-05-10
申请人： Yoshihiko Azuma , Takehiro Katoh , Hiroshi Ootsuka , Toshihiko Ishimura , Masataka Hamada , Katsumi Kozakai , Norio Ishikawa , Masayuki Ueyama
发明人： Yoshihiko Azuma , Takehiro Katoh , Hiroshi Ootsuka , Toshihiko Ishimura , Masataka Hamada , Katsumi Kozakai , Norio Ishikawa , Masayuki Ueyama
CPC分类号： G02B7/28 , G03B7/097 , G03B7/09979
摘要： A camera system including interchangeable lenses each having a switch to control many functions provided to the camera system. By simply operating one lens switch, the working mode of auto-focusing (AF) functions of the camera system can be changed: single-spot AF/multi-spot AF modes, one-short AF/continuous AF modes, and focus-locing/non-locking modes. When used with an IC card also attached to the camera body, the lens switch can further control the functions of the camera system added or selected by the IC card.
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公开(公告)号：US4942418A
公开(公告)日：1990-07-17
申请号：US355449
申请日：1989-05-22
IPC分类号： G02B7/34
CPC分类号： G02B7/34
摘要： An automatic focusing divice for a camera is disclosed. The automatic focusing device has sensing means for sensing light intensity distributions within narrow and wide areas of a field of view of an objective lens, respectively and can be operated in either operation mode of one-shot AF mode and continuous AF mode. When the one-shot AF mode is designated, said narrow area which is narrower than said wide area is automatically selected for focus condition detection and, when the continuous AF mode is designated, said wide area is automatically selected.
摘要翻译： 公开了一种用于照相机的自动对焦部分。 自动聚焦装置具有用于分别感测物镜的视场的窄范围和宽范围内的光强分布的感测装置，并且可以以单次AF模式和连续AF模式的任一操作模式操作。 当指定单次AF模式时，自动选择比所述广域窄的所述窄区域进行焦点状态检测，并且当指定了连续AF模式时，自动选择所述广域。
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公开(公告)号：US4768052A
公开(公告)日：1988-08-30
申请号：US85410
申请日：1987-08-14
CPC分类号： G02B7/38
摘要： A focus detecting device capable of correcting an error, between an in-focus position of a photographic lens detected by a focus detecting means and an image field position affording the best image. Focus detection is made using plural focus detecting areas provided on and off the optical axis of the photographic lens, to obtain an in-focus position. Then, the thus-obtained in-focus position of the photographic lens is corrected using an appropriate correction value out of those preset and stored in a ROM in the lens according to whether the focus detecting area used in the focus detection is an axial or off-axial area, or according to the focal length of the photographic lens as well as the photographing mode. And the photographic lens is thereby set to the best image field position.
摘要翻译： 一种能够校正由焦点检测装置检测到的摄影镜头的对焦位置和提供最佳图像的图像场位置之间的误差的焦点检测装置。 利用在摄影镜头的光轴上设置的多个焦点检测区域进行聚焦检测，以获得对焦位置。 然后，根据在焦点检测中使用的焦点检测区域是轴向还是关闭，利用预先设定的并存储在镜头中的ROM中的适当的校正值来校正由此获得的摄影镜头的对焦位置 同轴面积，或根据摄影镜头的焦距以及拍摄模式。 因此，摄影镜头被设置为最佳图像场位置。
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公开(公告)号：US4764787A
公开(公告)日：1988-08-16
申请号：US005674
申请日：1987-01-21
申请人： Masataka Hamada , Tokuji Ishida
发明人： Masataka Hamada , Tokuji Ishida
CPC分类号： G02B7/34
摘要： An automatic focus adjusting device for a camera is disclosed. The automatic focus adjusting device has lens control means for driving an objective lens at a high speed while repeating focus condition detecting operation when a defocus amount detected is large and, when the defocus amount becomes small, at a low speed without executing the focus condition detecting operation in order to stop the objective lens at an in-focus position thereof.
摘要翻译： 公开了一种用于相机的自动对焦调节装置。 自动聚焦调节装置具有用于在高速时驱动物镜的镜头控制装置，同时当检测到的散焦量大时重复聚焦条件检测操作，并且当散焦量变小时，不执行聚焦条件检测 操作以便将物镜停留在其对焦位置。
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公开(公告)号：US4716434A
公开(公告)日：1987-12-29
申请号：US945879
申请日：1986-12-23
CPC分类号： G02B7/34
摘要： A focus condition detecting device which generated first and second light intensity distribution signals representing light intensity distributions on first and second arrays arranged to receive lights having passed through different areas of the exit pupil of an objective lens is arranged so as to divide the first light intensity distribution signal into a plurality of blocks. Each of the portions of the first light intensity distribution signal belonging to the respective blocks is shifted relative to the second light intensity distribution signal by sequentially changing an amount of shift, so that correlations therebetween are calculated for finding the amount of shift providing the highest correlation. In accordance with the amount of shift found to provide the highest correlation through the correlation calculation with use of the portion of the first light intensity distribution signal belonging to one of the blocks, the shift range for the succeeding correlation calculation with use of the portion of the first light intensity distribution signal belonging to another one of the blocks is restricted to shorten the period of time required for the succeeding correlation calculation.
摘要翻译： 一种聚焦条件检测装置，其生成表示第一和第二阵列上的光强度分布的第一和第二光强分布信号，所述第一和第二阵列布置成接收通过物镜的出射光瞳的不同区域的光，以便将第一光强度 分配信号分成多个块。 属于各个块的第一光强分布信号的每个部分相对于第二光强分布信号通过顺序地改变偏移量而偏移，从而计算它们之间的相关性，以找出提供最高相关性的偏移量 。 根据通过使用属于其中一个块的第一光强分布信号的部分的相关计算提供最高相关性的移位量，用于随后的相关计算的偏移范围，使用 限于属于另一个块的第一光强分布信号以缩短后续相关计算所需的时间。
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公开(公告)号：US4650309A
公开(公告)日：1987-03-17
申请号：US731453
申请日：1985-05-06
申请人： Tokuji Ishida , Masataka Hamada
发明人： Tokuji Ishida , Masataka Hamada
摘要： Present invention relates to a phase difference detection type focus detecting device which includes a pair of image forming lenses and a photo sensor array and detects the focus deviation in accordance with the positions of a pair of formed images respectively formed on the photo sensor array by the pair of image forming lenses. In such focus detecting device, the pair of image forming lenses are integrally molded of a plastic material, such that the change of the distance between the pair of image forming lenses due to the temperature change causes the error of the focus deviation. The error is made to zero by the detection of the ambient temperature and the compensation of the data basing on expansion or contraction of the plastic material with temperature.
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公开(公告)号：US4618235A
公开(公告)日：1986-10-21
申请号：US754282
申请日：1985-07-12
申请人： Tokuji Ishida , Masataka Hamada
发明人： Tokuji Ishida , Masataka Hamada
CPC分类号： G02B7/34
摘要： A focus detecting device includes an image sensor such as a CCD which converts the intensity of the light indicent thereon into the amount of a charge, integrates or accumulates the charge, terminates the integration operation when the level of the integrated charge reaches a given value or when a given integration limit time has lapsed, and outputs the integrated charge as an image signal which in turn is amplified step-by-step in accordance with the brightness of the object for the focus condition detection. Two different integration limit times are provided such that the integration operation is terminated at the shorter time while the focus detection is possible within the shorter time. The integration operation is terminated at the longer integration limit time when the focus detection is impossible with the shorter time and with the image signal given by the integration for the shorter time.
摘要翻译： 焦点检测装置包括诸如CCD的图像传感器，其将其上指示的光的强度转换成电荷量，积分或累积电荷，当积分电荷的电平达到给定值时终止积分操作，或 当给定的积分极限时间已经过去时，并且将积分的电荷作为图像信号输出，该图像信号又依照用于焦点条件检测的对象的亮度逐步放大。 提供了两个不同的集成限制时间，使得集成操作在更短的时间内终止，同时可以在更短的时间内进行焦点检测。 当在更短的时间内不能进行焦点检测并且在较短的时间内由积分给出的图像信号在较长的积分极限时间结束积分操作。
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公开(公告)号：US09272868B2
公开(公告)日：2016-03-01
申请号：US14424191
申请日：2013-08-23
申请人： Masataka Hamada , Junya Nakajima , Seiji Nishizawa
发明人： Masataka Hamada , Junya Nakajima , Seiji Nishizawa
IPC分类号： B65H7/20 , G03G15/00 , H04N1/00 , B65H5/38 , G03G21/16 , H04N1/04 , B65H1/04 , B65H1/08 , B65H3/06 , B65H5/06 , B65H29/12 , B65H29/14 , B65H29/58 , B65H31/00
CPC分类号： B65H7/20 , B65H1/04 , B65H1/08 , B65H3/06 , B65H5/068 , B65H5/38 , B65H29/125 , B65H29/14 , B65H29/58 , B65H31/00 , G03G15/00 , G03G15/602 , G03G21/16 , H04N1/00 , H04N1/00541 , H04N1/00543 , H04N1/00557 , H04N1/04
摘要： A document reading device is capable of facilitating attachment/detachment of a reading unit provided inside a U-shaped document conveying path formed in a document conveying device. The document reading device includes a U-shaped document conveying path extending from a sheet supply tray to a sheet discharge tray through a reading section and a reading unit disposed inside the U-shaped document conveying path, a downstream part of the sheet supply tray on which a document is placed and a guide member provided upstream of the document conveying path to continue from the sheet supply tray and is arranged to be attachable/detachable with respect to the sheet supply tray or document conveying path. The reading unit is removable from inside the U-shaped document conveying path through an opening through which the downstream part of the sheet supply tray and guide member of the document conveying path are removed.
摘要翻译： 文件读取装置能够便于在形成在文件传送装置中的U形文件传送路径内设置的读取单元的附接/拆卸。 文件读取装置包括通过阅读部分从片材供应托盘延伸到片材排出托盘的U形文件传送路径和布置在U形文档传送路径内的读取单元，供纸托盘的下游部分 放置文件的导向构件和设置在文件传送路径的上游的引导构件，以从片材供应托盘继续并且被布置成相对于片材供应托盘或文件传送路径可附接/拆卸。 读取单元可从U形文件传送路径内部通过开口移除，通过该开口，供纸盘的下游部分和文件传送路径的引导构件被移除。
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公开(公告)号：US08950880B2
公开(公告)日：2015-02-10
申请号：US13593905
申请日：2012-08-24
申请人： Masataka Hamada
发明人： Masataka Hamada
IPC分类号： G03B15/02
CPC分类号： G03B15/02 , G03B2215/0567
摘要： A lighting device and a photographing system including the same are provided. The lighting device including a plurality of light emitting devices which emit lights of wavelengths within the visible ray domain; and an opening arranged in front of the plurality of light emitting devices, wherein the plurality of light emitting devices are arranged in a medium having a low refraction index, and solid structures that are formed of a medium having a high refraction index, are capable of transmitting visible rays therethrough, and are periodically formed on a portion of the opening to face the plurality of light emitting devices, wherein the solid structures are formed in a period such that lights emitted by the plurality of light emitting devices are not reflected.
摘要翻译： 提供了一种照明装置和包括该照明装置的拍摄系统。 该照明装置包括发射可见光区域内的波长的光的多个发光装置; 以及布置在所述多个发光器件前面的开口，其中所述多个发光器件布置在具有低折射率的介质中，并且由具有高折射率的介质形成的固体结构能够 透射可见光线，并且周期性地形成在所述开口的一部分上以面对所述多个发光器件，其中所述固体结构形成为使得由所述多个发光器件发射的光不被反射的周期。
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