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1. 发明专利

JP2011028242A Diaphragm control apparatus of interchangeable lens camera 有权
标题翻译：可互换镜头摄像机的膜片控制装置
公开(公告)号：JP2011028242A
公开(公告)日：2011-02-10
申请号：JP2010139364
申请日：2010-06-18
申请人： Hoya Corp , Hoya株式会社
发明人： YAMADA TOSHIAKI , SANADA SHINICHIRO , KOSAKO YUKIMASA , OSAWA YUTAKA , UENO HIROTAKA
IPC分类号： G03B17/14 , G03B9/02 , H04N5/225
CPC分类号： G03B7/10
摘要： PROBLEM TO BE SOLVED: To provide a diaphragm control apparatus of an interchangeable lens camera which performs accurate stepping-drive control, even if a stepping motor is used. SOLUTION: The diaphragm control apparatus of the interchangeable lens camera detects the origin position of the stepping motor to move a slider member performing drive control of a diaphragm device of a mounted photographic lens at the origin position by reciprocating motion of the slider member from the origin position. When the slider member returns to a position corresponding to a moving distance which is less than a moving distance corresponding to one step from the origin position during a backward-stroke process, the position of the slider member is detected, after holding the stepping motor for a first waiting time; the stepping motor is made to enter a free state, after a lapse of the first waiting time, and further the position of the slider member is detected after a lapse of a second waiting time; and an initial excitation pattern of the stepping motor at the origin position is set from a difference between a position detected in the hold state and a position detected in the free state and from the moving distance per one step. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：即使使用步进电动机，也可以提供执行精确的步进驱动控制的可互换镜头相机的光圈控制装置。解决方案：可互换镜头相机的光圈控制装置检测步进电机的原点位置，以便通过滑块构件的往复运动来使执行安装的摄影镜头的隔膜装置的驱动控制的原稿位置移动到原始位置从原点位置。当滑块构件在向后冲程处理期间返回到与从原点位置相对应的一步距离的移动距离相对应的位置时，在将步进电机保持在第一个等待时间在经过第一等待时间之后使步进电机进入空闲状态，并且在经过第二等待时间之后进一步检测滑动构件的位置; 并且根据在保持状态下检测的位置与在自由状态下检测的位置之间的差与每步的移动距离之间的差设定起始位置处的步进电机的初始激励图案。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2011028243A Diaphragm control apparatus of interchangeable lens camera 有权
标题翻译：可互换镜头摄像机的膜片控制装置
公开(公告)号：JP2011028243A
公开(公告)日：2011-02-10
申请号：JP2010139365
申请日：2010-06-18
申请人： Hoya Corp , Hoya株式会社
发明人： YAMADA TOSHIAKI , SANADA SHINICHIRO , KOSAKO YUKIMASA , OSAWA YUTAKA , UENO HIROTAKA
IPC分类号： G03B9/02 , G03B7/20 , G03B9/06 , G03B17/14 , H02P8/00 , H02P8/08 , H04N5/225
CPC分类号： G03B9/02 , G03B21/64
摘要： PROBLEM TO BE SOLVED: To provide a diaphragm control apparatus of an interchangeable lens camera which enables control of a diaphragm value with accuracy by the number of steps for driving a stepping motor, even if the stepping motor is used as a motor for diaphragm drive control. SOLUTION: The diaphragm control apparatus of the interchangeable lens camera, including a slide member moving a diaphragm interlocking lever of a mounted photographic lens, includes a control means that counts the number of steps, based from the moment at which the slide member gets over a predetermined position in a stop-down direction from an origin position, when the stepping motor is stop-down driven, to drive stepwise the slide member toward a stop-down position from the origin position on an open aperture side by the predetermined number of steps. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供可互换镜头相机的光圈控制装置，其能够通过用于驱动步进电机的步数来精确地控制光阑值，即使步进电机用作电动机隔膜驱动控制。解决方案：可互换镜头相机的光圈控制装置，包括移动安装的摄影镜头的光阑联动杆的滑动部件，包括控制装置，其基于滑动部件的时刻对台阶数进行计数，在步进电动机停止驱动的同时从原点位置向下停止的预定位置，从开口侧的原点位置朝向停止位置逐步驱动滑动部件的规定位置步数版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2011028241A Diaphragm control apparatus of interchangeable lens camera 有权
标题翻译：可互换镜头摄像机的膜片控制装置
公开(公告)号：JP2011028241A
公开(公告)日：2011-02-10
申请号：JP2010139363
申请日：2010-06-18
申请人： Hoya Corp , Hoya株式会社
发明人： YAMADA TOSHIAKI , SANADA SHINICHIRO , KOSAKO YUKIMASA , OSAWA YUTAKA , UENO HIROTAKA
IPC分类号： G03B9/02 , G03B7/20 , G03B9/06 , G03B17/14 , H02P8/00 , H04N5/225 , H04N5/238
CPC分类号： G03B7/10
摘要： PROBLEM TO BE SOLVED: To provide a diaphragm control apparatus of an interchangeable lens camera which performs precise stepping-drive control even if a stepping motor is used as a driving source for the diaphragm control apparatus. SOLUTION: The stepping motor to move a slider member that performs drive control of a diaphragm device of a photographic lens is driven stepwise by repeatedly energizing excitation patterns in a prescribed order, in a direction where the slider member is away from an origin position, and then driven stepwise by repeatedly energizing the excitation patterns in the reverse order, in a returning direction where the slider member approaches to the origin position. The initial excitation pattern, when the stepping motor is started from the origin position is set, on the basis of the excitation pattern, when detecting that it approaches thereto by more than the moving distance for one step from the origin position. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：即使使用步进电机作为光圈控制装置的驱动源，也可以提供可互换镜头照相机的光圈控制装置，其执行精确的步进驱动控制。
解决方案：通过在滑块构件远离原点的方向上以规定的次序重复地激励激励图案，使步进电机移动执行摄影镜头的隔膜装置的驱动控制的滑动构件逐步驱动然后通过在滑块构件接近原点位置的返回方向上以相反的顺序重复地激励激励图案而逐步驱动。当基于激励模式，当从原点位置开始步进电动机的初始激励模式被设定为从起始位置开始一步以上的移动距离时，初始激励模式从起始位置开始。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2011007877A Exposure control unit and imaging apparatus 有权
标题翻译：接触控制单元和成像装置
公开(公告)号：JP2011007877A
公开(公告)日：2011-01-13
申请号：JP2009149010
申请日：2009-06-23
申请人： Hoya Corp , Hoya株式会社
发明人： UENO HIROTAKA , MATSUMOTO KAZUHIRO
IPC分类号： G03B7/28 , G03B7/093
CPC分类号： G03B7/08
摘要： PROBLEM TO BE SOLVED: To estimate an exposure for a desired subject, with high accuracy.SOLUTION: An exposure calculator 30 includes a first calculator circuit 31, an SDRAM 32, a zone selector 50, an exposure determiner 60 and a second calculator circuit 33. Photometric data is generated from each of a plurality of photometric zones in a photometric sensor. The first calculator circuit 31 generates partial exposure data based on the received photometric data. The partial exposure data is stored in the SDRAM 32. The zone selector 50 selects the photometric zone which receives light only from subjects having high brightness or subjects having low brightness based on the partial exposure data. The exposure determiner 60 discriminates whether a subject is under front or rear lighting conditions, or other conditions based on the selected photometric zone. The exposure determiner 60 determines the exposure based on the discriminated result.
摘要翻译：要解决的问题：以高精度估计所需对象的曝光。解决方案：曝光计算器30包括第一计算器电路31，SDRAM 32，区域选择器50，曝光确定器60和第二计算器电路33 从光度传感器中的多个测光区域的每一个产生光度数据。第一计算器电路31基于接收的测光数据生成部分曝光数据。部分曝光数据存储在SDRAM 32中。区域选择器50基于部分曝光数据选择仅从具有高亮度的被摄体或仅具有低亮度的被摄体接收光的测光区域。曝光确定器60鉴别被摄体是在正面还是后面照明条件下，或者基于所选择的测光区域的其他条件。曝光确定器60基于识别结果来确定曝光。

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