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    • 4. 发明授权
    • Camera having lens system
    • 相机具有镜头系统
    • US07486332B2
    • 2009-02-03
    • US10849138
    • 2004-05-20
    • Hiroshi EndoYoshihiro ItoTakehiko SenbaAkio Omiya
    • Hiroshi EndoYoshihiro ItoTakehiko SenbaAkio Omiya
    • H04N5/225
    • H04N5/2254
    • A camera has a lens system that includes a lens barrel incorporating therein an image taking lens, the lens barrel being variable in a barrel length between a collapsed state in which the barrel length is relative short and a photographic state in which the barrel length is relative long. The lens barrel comprises a light quantity control member that controls quantity of photographic light passing through the image taking lens, and a light quantity control member saving and advancing mechanism that provides such a control that when the lens barrel changes over from the photographic state to the collapsed state, the light quantity control member is saved from a photographic optical axis, and when the lens barrel changes over from the collapsed state to the photographic state, the light quantity control member is advanced to the photographic optical axis.
    • 相机具有透镜系统,该透镜系统包括其中装有图像拍摄透镜的透镜镜筒,镜筒在镜筒长度相对较短的折叠状态和镜筒长度相对于照相状态之间的镜筒长度可变 长。 透镜镜筒包括控制通过摄像镜头的照相光量的光量控制部件,以及提供这样的控制的光量控制部件保存推进机构,即当镜筒从摄影状态转换到 折叠状态,从摄影光轴保存光量控制部件,并且当镜筒从折叠状态转换到照相状态时,光量控制部件前进到摄影光轴。
    • 8. 发明授权
    • Lens barrel, photographic apparatus, and optical apparatus
    • 镜筒,照相装置和光学装置
    • US07102831B2
    • 2006-09-05
    • US10967670
    • 2004-10-19
    • Akio OmiyaTakehiko SenbaHiroshi EndoYoshihiro Ito
    • Akio OmiyaTakehiko SenbaHiroshi EndoYoshihiro Ito
    • G02B15/14G03B5/02
    • G02B7/102G02B7/021
    • A lens barrel has its collapsed length that can be further decreased by removing unnecessary space and bringing lens groups close to each other and a photographic apparatus incorporates the lens barrel. When the lens barrel is collapsed, at least a fourth lens group is retracted from a photographic optical axis by an advance/retract mechanism. In that case, a first lens group and third lens group are aligned along the optical axis and stuffed into the lens barrel, the fourth lens group is placed on the top, bottom, right, or left side of these lenses, and a second lens group is placed on the top, bottom, right, or left side of the first and third lens groups. This reduces the length of the lens barrel. During extension, the second and fourth lens groups are advanced onto the photographic optical axis by the advance/retract mechanism to extend the lens barrel greatly.
    • 镜筒具有其折叠长度,可以通过去除不必要的空间并使透镜组彼此靠近并且照相装置结合透镜镜筒来进一步减小。 当镜筒折叠时,至少第四透镜组通过前进/后退机构从摄影光轴缩回。 在这种情况下,第一透镜组和第三透镜组沿着光轴排列并填充到透镜镜筒中,第四透镜组被放置在这些透镜的顶部,底部,右侧或左侧,并且第二透镜 组放置在第一和第三透镜组的顶部,底部,右侧或左侧。 这减少了镜筒的长度。 在延伸期间,第二透镜组和第四透镜组通过前进/后退机构前进到摄影光轴上,以大大延长镜筒。
    • 9. 发明授权
    • Lens barrel, photographic apparatus, and optical apparatus
    • 镜筒,照相装置和光学装置
    • US07194203B2
    • 2007-03-20
    • US10968355
    • 2004-10-20
    • Akio OmiyaYoshihiro ItoTakehiko SenbaHiroshi Endo
    • Akio OmiyaYoshihiro ItoTakehiko SenbaHiroshi Endo
    • G03B17/04G02B7/04
    • G03B17/04G02B7/102
    • A lens barrel has its collapsed length which can be further decreased and its extended length which can be further increased. A photographic apparatus incorporates the lens barrel into its body. A lens barrel is equipped with a first gear which is rotatably supported by a straight-ahead key ring and rotates being driven by rotation of a middle tube and a second gear which receives driving force from the first gear and retracts a second lens group to a predetermined retracted position off the optical axis of a zoom lens during collapse and advances the second lens group onto the optical axis during extension. The second gear lacks teeth in that part which faces the first gear when the second lens group is at the retracted position during collapse. Consequently, the first gear runs idle while facing that part thereby holding the second lens group at the retracted position.
    • 透镜筒的折叠长度可以进一步减小,其延伸长度可以进一步增加。 摄影器具将镜筒装入其身体。 透镜镜筒装有第一齿轮,该第一齿轮由直前键环可旋转地支撑,并通过中间管和第二齿轮的旋转而被驱动,第二齿轮从第一齿轮接收驱动力并将第二透镜组缩回到 预定缩回位置在折叠期间离开变焦透镜的光轴,并且在延伸期间将第二透镜组推进到光轴上。 当第二透镜组在折叠期间处于缩回位置时,该第二齿轮在该部分中缺少与第一齿轮对应的齿。 因此,第一档在面对该部分的同时空转,从而将第二透镜组保持在缩回位置。