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公开(公告)号：US5628036A
公开(公告)日：1997-05-06
申请号：US496662
申请日：1995-06-29
CPC分类号： G02B7/28
摘要： A focus adjustment device that eliminates unnecessary driving of a shooting lens after the shooting lens has already been driven near to an in-focus position. In a focus adjustment device, information related to the defocus amount of the shooting lens is detected based on output signals corresponding to the light intensity distribution of a object image from a pair of photo-electric conversion arrays. The focus adjustment device includes a focus detection circuit to determine the confidence level of the detected information based on predetermined determination criteria and a lens driving device to drive the shooting lens based on the detected information when the information of the focus detection device is accepted as having a sufficient confidence level. However, to prevent erroneous driving of the lens, such as when the object moves out of a focusing field or when the object reverses direction, the probability of rejecting the information of the focus detection on the basis of an insufficient confidence level increases. This occurs when information indicating that the occurrence of a defocus amount exceeding a predetermined range is detected by the focus detection circuit after the shooting lens has previously been determined to have been driven within permissible parameters of an in-focus position.
摘要翻译： 一种聚焦调节装置，其在拍摄镜头已被驱动靠近对焦位置之后消除了对拍摄镜头的不必要的驱动。 在焦点调节装置中，基于与来自一对光电转换阵列的物体图像的光强度分布相对应的输出信号来检测与拍摄镜头的散焦量相关的信息。 焦点调节装置包括：焦点检测电路，用于当焦点检测装置的信息被接受为具有如下特征时，基于预定的确定标准确定检测到的信息的置信度;以及透镜驱动装置，用于根据检测到的信息来驱动拍摄镜头; 足够的信心水平。 然而，为了防止透镜的错误驱动，例如当物体离开聚焦场时或当物体反转方向时，基于置信度不足的等级来拒绝焦点检测的信息的概率增加。 当在拍摄镜头先前已被确定为在对焦位置的允许参数内被驱动之前，通过焦点检测电路检测到指示发生了超过预定范围的散焦量的信息时，会发生这种情况。
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公开(公告)号：US07701502B2
公开(公告)日：2010-04-20
申请号：US11299628
申请日：2005-12-13
CPC分类号： G03B13/32
摘要： An image sensor includes: three or more photoelectric conversion devices; and a storage control circuit that controls storage operations at the photoelectric conversion devices, and the storage control circuit commonly controls the storage operations at two or more photoelectric conversion devices that are not disposed directly next to one another among the photoelectric conversion devices.
摘要翻译： 图像传感器包括：三个或更多个光电转换装置; 以及控制光电转换装置的存储操作的存储控制电路，并且存储控制电路通常控制在光电转换装置之间彼此不直接配置的两个以上的光电转换装置的存储动作。
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公开(公告)号：US06643460B2
公开(公告)日：2003-11-04
申请号：US09769372
申请日：2001-01-26
IPC分类号： G03B1300
CPC分类号： G03B7/099
摘要： A focal point detection apparatus that includes a sub-mirror constituted of a concave mirror and performs focal point detection in the phase difference detection method is capable of implementing a focal point detection over a wide range. A light flux for focal point detection having passed through a semi-transmissive reflecting member and a reflecting member constituted of the concave mirror described above enters a focal point detection optical system. A correction optical system provided between the semi-transmissive reflecting member and the reflecting member constituted of the concave mirror corrects an offset of the direction along which the light flux for focal point detection advances caused by the reflecting member constituted of the concave mirror, in conformance to the image height at the focal point detection position. By utilizing this correction optical system, it becomes possible to reduce the size of the focal point detection apparatus while assuring a large focal point detection area.
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公开(公告)号：US20060133790A1
公开(公告)日：2006-06-22
申请号：US11299628
申请日：2005-12-13
IPC分类号： G03B13/32
CPC分类号： G03B13/32
摘要： An image sensor includes: three or more photoelectric conversion devices; and a storage control circuit that controls storage operations at the photoelectric conversion devices, and the storage control circuit commonly controls the storage operations at two or more photoelectric conversion devices that are not disposed directly next to one another among the photoelectric conversion devices.
摘要翻译： 图像传感器包括：三个或更多个光电转换装置; 以及控制光电转换装置的存储操作的存储控制电路，并且存储控制电路通常控制在光电转换装置之间彼此不直接配置的两个以上的光电转换装置的存储动作。
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公开(公告)号：US06766112B2
公开(公告)日：2004-07-20
申请号：US09968756
申请日：2001-10-03
IPC分类号： G03B1336
CPC分类号： G02B7/36
摘要： A sub-mirror which deflects a focal point detection light flux passing through an area off the optical axis of a photographing optical system toward the optical axis and a second deflection member that deflects the focal point detection light flux deflected by the sub-mirror to allow it to advance roughly parallel to the photographic optical axis are provided. A pair of light fluxes achieved by deflecting the focal point detection light flux twice are guided to an image sensor to form a pair of subject images on the image sensor. The focal adjustment state is detected based upon the extent to which the pair of subject images are offset.
摘要翻译： 将通过穿过摄影光学系统的光轴的区域的焦点检测光束朝向光轴偏转的副镜，以及偏转由副镜偏转的焦点检测光束的第二偏转构件，以允许 提供它大致平行于摄影光轴前进。 通过将焦点检测光束偏转两次而获得的一对光束被引导到图像传感器，以在图像传感器上形成一对被摄体图像。 基于对象对象图像的偏移程度来检测焦点调整状态。
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公开(公告)号：US5625849A
公开(公告)日：1997-04-29
申请号：US391175
申请日：1995-02-21
申请人： Masamitsu Ozawa
发明人： Masamitsu Ozawa
CPC分类号： G02B7/346
摘要： A focus state detection device includes focus state detection optical systems having focus state detection regions off the optical axis of the object lens (in the lateral areas of the field) that extend in a radial direction relative to the optical axis of the shooting lens. In each focus state detection optical system, images from the object lens are composed into secondary images on a pair of rows of photosensitive elements, and the focussing state of the object lens is detected from the positional relationship between these secondary images. The focus state detection optical systems have a first focus state detection region located on the optical axis of the predicted focussing plane of the object lens, and a second focus state detection region located off the optical axis of the predicted focussing plane and along a radial direction relative to the optical axis. The distance between outer edges of the pair of apertures of the diaphragm mask corresponding to the second focus state detection region is established so as to be smaller than the distance between outer edges of the pair of apertures of the diaphragm mask corresponding to the first focus state detection region. Such structure provides a focus state detection device having a high degree of focus state detection precision without the problems of eclipsing of focus state detection light rays caused by exit pupils of the shooting lens.
摘要翻译： 焦点状态检测装置包括聚焦状态检测光学系统，该焦点状态检测光学系统具有相对于拍摄镜头的光轴在径向上延伸的物镜的光轴（在场的横向区域）中的焦点状态检测区域。 在每个焦点状态检测光学系统中，来自物镜的图像被组成一对感光元件上的次级图像，并且根据这些二次图像之间的位置关系来检测物镜的聚焦状态。 焦点状态检测光学系统具有位于物镜的预测聚焦平面的光轴上的第一焦点状态检测区域和位于预测聚焦平面的光轴上并沿着径向方向的第二焦点状态检测区域 相对于光轴。 对应于第二焦点状态检测区域的光阑掩模对的一对孔径的外边缘之间的距离被建立为小于对应于第一聚焦状态的光阑掩模对的一对孔径的外边缘之间的距离 检测区域。 这种结构提供了具有高焦度状态检测精度的焦点状态检测装置，而没有由拍摄镜头的出射光瞳造成的聚焦状态检测光线的偏离的问题。
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7.发明授权公开(公告)号：US07860294B2
公开(公告)日：2010-12-28
申请号：US11847490
申请日：2007-08-30
申请人： Masamitsu Ozawa
发明人： Masamitsu Ozawa
IPC分类号： G06K9/00
CPC分类号： G06K9/186
摘要： A magnetic ink character reading apparatus includes a similarity acquisition unit, a character recognition unit and a character recognition limiting unit. The similarity acquisition unit acquires a similarity between one-character-corresponding data extracted from detection result data and reference data corresponding to each of the magnetic ink characters. The character recognition unit recognizes the magnetic ink character having the highest similarity as the magnetic ink character corresponding to the one-character-corresponding data. When the difference between the highest similarity and the second highest similarity among the similarities acquired is smaller than a predetermined reference difference, the character recognition limiting unit limits the determination that the magnetic ink character having the highest similarity is the magnetic ink character corresponding to the one-character.
摘要翻译： 磁性墨水字符读取装置包括相似性获取单元，字符识别单元和字符识别限制单元。 相似度获取单元获取从检测结果数据提取的一个字符对应数据与对应于每个磁性墨水字符的参考数据之间的相似度。 字符识别单元识别具有最高相似性的磁性墨水字符作为与单个字符对应的数据对应的磁性墨水字符。 当所获得的相似度中最高相似度和第二高相似度之间的差小于预定的参考差时，字符识别限制单元限制具有最高相似性的磁性墨水字符是对应于该一个的磁性墨水字符的确定 -字符。
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公开(公告)号：US20080056554A1
公开(公告)日：2008-03-06
申请号：US11845870
申请日：2007-08-28
申请人： Masamitsu Ozawa
发明人： Masamitsu Ozawa
CPC分类号： G06K9/186
摘要： In the magnetic ink character reading apparatus, a first determination section reads signal data sequentially from a signal data string corresponding to the output signals of a magnetic head and determines whether the signal data corresponds to a predetermined signal. A second determination section determines whether the determination results by the first determination section is obtained successively for at least a predetermined number of signal data. A determination counter section counts the number of times (count) the successive acquisition of the determination results each telling the disagreement of the signal data with the predetermined signal over at least the predetermined number of signal data has been confirmed by the second determination section. A character recognition processing execution limit section limits the execution of the character recognition processing according to the count result provided by the determination counter section.
摘要翻译： 在磁性墨水字符读取装置中，第一确定部分从与磁头的输出信号对应的信号数据串中顺序读取信号数据，并确定信号数据是否对应于预定信号。 第二确定部确定至少预定数量的信号数据是否连续地获得第一确定部分的确定结果。 确定计数部分对第二确定部分已经确认至少预定数量的信号数据至少预定数量的信号数据的不一致的确定结果的连续获取的次数（计数）进行计数。 字符识别处理执行限制部根据由判定计数部提供的计数结果来限制字符识别处理的执行。
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公开(公告)号：US06239912B1
公开(公告)日：2001-05-29
申请号：US09391365
申请日：1999-09-08
申请人： Masamitsu Ozawa
发明人： Masamitsu Ozawa
IPC分类号： G02B2710
CPC分类号： G02B7/346
摘要： A focal point detection apparatus having a plurality of detection areas comprises a view field mask disposed in the vicinity of a prearranged imaging plane of a photographing lens and provided with a plurality of view field apertures, a condenser lens provided with a plurality of lens units for respectively condensing light fluxes transmitting the plurality of view field apertures, and a re-imaging optical system provided with a plurality of re-imaging lens units for dividing a light flux transmitting each view field aperture into a pair of light fluxes transmitting different areas of the exit pupil of the photographing lens and for forming images of the respective view field apertures on light receiving means.
摘要翻译： 具有多个检测区域的焦点检测装置包括设置在拍摄镜头的预先安排的成像平面附近并具有多个视场孔径的视场屏蔽，设置有多个透镜单元的聚光透镜单元， 分别会聚透射多个视场孔径的光束;以及重新成像光学系统，其设置有多个重新成像透镜单元，用于将透过每个视场光阑的光束分成透射不同区域的一对光束 拍摄镜头的出射光瞳和用于在光接收装置上形成各个视场孔径的图像。
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10.发明授权Magnetic indication sheet printing method and magnetic indication sheet printing apparatus 失效磁性指示片打印方法和磁性指示片打印装置
公开(公告)号：US06025856A
公开(公告)日：2000-02-15
申请号：US596544
申请日：1996-02-05
CPC分类号： B43L1/008 , G09F9/375 , G09G3/001 , G09G2320/041
摘要： A magnetic indication sheet printing method and a magnetic indication sheet printing apparatus for printing characters and such on a magnetic indication sheet being capable of carrying out an optimum printing process without being affected by the ambient temperature and the temperature of the magnetic indication sheet. The method and the apparatus magnetically indicates characters on the magnetic indication sheet by means of a magnetic field, where the sheet is heated to an appropriate temperature.
摘要翻译： 一种磁性指示纸打印方法和用于在不受环境温度和磁性指示片的温度影响的情况下执行最佳打印处理的磁性指示纸上打印字符等的磁性指示纸打印装置。 该方法和装置通过磁场磁性地指示磁性指示片上的字符，其中将片材加热到适当的温度。
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