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    • 43. 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。
    • 46. 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。
    • 48. 发明授权
    • Projector with auto focus device
    • 投影机带自动对焦装置
    • US07165849B2
    • 2007-01-23
    • US10979199
    • 2004-11-03
    • Tomonari MasuzawaYasuhiro MiwaTatsuo SaitoTakao Araki
    • Tomonari MasuzawaYasuhiro MiwaTatsuo SaitoTakao Araki
    • G03B21/00G03B3/00
    • G03B21/53G01C3/10H04N5/74H04N9/317H04N9/3185
    • An image displayed on a liquid crystal panel is projected on a projection surface by a projection lens such that the optical axis of the projection lens is perpendicular to the projection surface. An optical axis of a distance measurement light and an optical axis of a light receiving lens are each inclined a specified angle with respect to the optical axis of the projection lens to be not perpendicular to the projection surface so as to reduce noise caused by specularly reflected light that otherwise would be detected by the distance measurement unit when a highly reflective whiteboard is utilized as the projection surface. The distance measurement unit is formed by unitizing a light emitting element, a light emitting lens, the light receiving lens, and a light receiving element, and the distance measurement unit is held with the projection lens by a common holder.
    • 通过投影透镜将液晶面板上显示的图像投影在投影面上,使得投影透镜的光轴垂直于投影面。 距离测量光的光轴和光接收透镜的光轴各自相对于投影透镜的光轴倾斜指定的角度,以不会垂直于投影表面,从而减少由镜面反射 当高反射白板被用作投影表面时,否则将由距离测量单元检测到的光。 距离测量单元通过将发光元件,发光透镜,光接收透镜和光接收元件组合而形成,距离测量单元通过公共保持器与投影透镜保持。