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    • 41. 发明授权
    • Lens apparatus
    • 镜头设备
    • US08301023B2
    • 2012-10-30
    • US12977787
    • 2010-12-23
    • Tatsuo SaitoTadayoshi Edamoto
    • Tatsuo SaitoTadayoshi Edamoto
    • G03B17/00
    • G03B3/10G03B13/34
    • The lens apparatus according to an aspect of the present invention includes: a focus lens which is driven for bringing a desired subject into focus; a zoom lens which is driven for changing a focal length; and a diaphragm having an aperture diameter which is changed for adjusting an amount of photography light, and the lens apparatus is configured to adjust a position of the focus lens, to thereby perform flange back distance adjustment. In such a lens apparatus, the aperture diameter of the diaphragm is changed at a time of mode transition between a photography mode in which a normal photographing operation is possible and an adjustment mode in which the flange back distance adjustment is possible. Accordingly, the user can instantly know whether or not the lens apparatus is in the flange back distance adjustment mode, only by checking a video picture photographed by a television camera.
    • 根据本发明的一个方面的透镜装置包括:被驱动以使期望的被摄体聚焦的聚焦透镜; 用于改变焦距的变焦镜头; 以及具有用于调节拍摄光量的孔径直径的光阑,并且透镜装置被配置为调节聚焦透镜的位置,从而执行凸缘返回距离调节。 在这样的透镜装置中,在能够进行正常拍摄操作的拍摄模式和可以进行凸缘后退距离调整的调节模式之间,模式转换时,光阑的孔径直径变化。 因此,只有通过检查由电视摄像机拍摄的视频图像,用户才能立即知道透镜装置是否处于凸缘后方距离调节模式。
    • 44. 发明授权
    • Driving apparatus
    • 驱动装置
    • US07589454B2
    • 2009-09-15
    • US11783545
    • 2007-04-10
    • Haruo OnozukaTatsuo SaitoKatsuji OzawaYukio Okazaki
    • Haruo OnozukaTatsuo SaitoKatsuji OzawaYukio Okazaki
    • H01L41/08
    • H02N2/025G02B7/023
    • A driving apparatus comprises: an electro-mechanical conversion element; a driving member that drives backwards and forwards in a straight line in response to extension and contraction of the electro-mechanical conversion element which are brought about by a drive signal being supplied thereto; a driven member, frictionally engaged with the driving member, that moves backwards and forwards in a straight line along the driving member by driving the driving member; and a drive control unit that divides a whole traveling area of one or both of an outgoing traveling path and an incoming traveling path of the driven member into a plurality of divided areas and supplies different drive signals to the divided areas so as to implement a drive control.
    • 驱动装置包括:机电转换元件; 驱动构件,其响应于由提供给其的驱动信号引起的机电转换元件的伸缩而沿直线驱动向前和向前; 与所述驱动构件摩擦接合的从动构件,通过驱动所述驱动构件沿着所述驱动构件沿直线向前后方向移动; 以及驱动控制单元,其将所述从动构件的输出行进路径和进入行进路径中的一个或两个的整个行驶区域分割成多个分割区域,并且向分割区域提供不同的驱动信号,以实现驱动 控制。
    • 49. 发明授权
    • Apparatus and method for measuring a distance
    • 用于测量距离的装置和方法
    • US5784654A
    • 1998-07-21
    • US703016
    • 1996-08-26
    • Tatsuo SaitoShigenori Goto
    • Tatsuo SaitoShigenori Goto
    • G02B7/28G03B7/099G03B13/36
    • G02B7/285G03B7/09979
    • A distance measuring apparatus according to the present invention comprises two types of distance measuring units, which are a first distance measuring unit of the active method for receiving reflected light of measuring light returning from an object and performing distance measurement based on a focused position thereof, and a second distance measuring unit of the passive method for receiving the natural light reflected by the object through two optical systems and performing the distance measurement based on two optical images thus obtained. The apparatus further has a luminance determining unit for determining a luminance of the external field from a photometry result, and a distance selecting device for selecting and outputting either one of distance measurement results obtained by the first distance measuring unit and second distance measuring unit as a proper distance value, based on the luminance of the external field determined by the luminance determining unit. This distance selecting device may be so arranged that the luminance of external field obtained by the luminance determining unit is determined in two levels of high level and low level. Then it selects the distance measurement result of the first distance measuring unit when the luminance of external field is determined as a low level or selects the distance measurement result of the second distance measuring unit when the luminance of external field is determined as a high level.
    • 根据本发明的距离测量装置包括两种距离测量单元,它们是用于接收从物体返回的测量光的反射光的主动方法的第一距离测量单元,并且基于其聚焦位置进行距离测量, 以及第二距离测量单元,用于通过两个光学系统接收由物体反射的自然光,并且基于由此获得的两个光学图像执行距离测量。 该装置还具有用于从测光结果确定外场亮度的亮度确定单元和用于选择并输出由第一距离测量单元和第二距离测量单元获得的距离测量结果中的任一个的距离选择设备,作为 基于由亮度确定单元确定的外部场的亮度的适当的距离值。 该距离选择装置可以被布置成使得由亮度确定单元获得的外部场的亮度在高电平和低电平的两个级别中确定。 然后,当外部亮度的亮度被确定为低电平时,选择第一距离测量单元的距离测量结果,或者当外部亮度的亮度被确定为高电平时,选择第二距离测量单元的距离测量结果。