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    • 2. 发明授权
    • Lens barrel
    • 镜筒
    • US06795259B2
    • 2004-09-21
    • US10396316
    • 2003-03-26
    • Noboru AkamiTakao Goto
    • Noboru AkamiTakao Goto
    • G02B702
    • G02B7/02
    • A lens barrel comprises a first cylindrical member having an inner peripheral surface, and a second cylindrical member internally fitted to the first cylindrical member and having an outer peripheral surface. One of the peripheral surfaces has first and second helical parallel axial grooves, and a third groove extending in only a circumferential direction continuously from one side ends of the first and second grooves. The other peripheral surface has first and second protruded portions engaging respectively with the first and second grooves in alignment in the circumferential direction and enabling relative rotations between the cylindrical members and relative movements in the axial direction. When the third groove is reached, the cylindrical members are allowed to make only relative rotations without moving in the axial direction.
    • 透镜镜筒包括具有内周面的第一圆柱形构件和内嵌在第一圆柱形构件上并具有外周表面的第二圆柱形构件。 其中一个圆周表面具有第一和第二螺旋形平行的轴向凹槽,以及从第一和第二凹槽的一个侧端沿着圆周方向连续延伸的第三凹槽。 另一个圆周表面具有分别与第一和第二凹槽在圆周方向上对准的第一和第二凸起部分,并且能够使圆柱形构件之间的相对旋转和轴向方向上的相对运动。 当达到第三凹槽时,允许圆柱形构件仅进行相对旋转而不沿轴向移动。
    • 5. 发明授权
    • Shield device and camera
    • 屏蔽装置和相机
    • US06400901B2
    • 2002-06-04
    • US09769250
    • 2001-01-26
    • Noboru AkamiYuji WatanabeAkira Kayatama
    • Noboru AkamiYuji WatanabeAkira Kayatama
    • G03B1708
    • G03B17/04
    • A shield device includes: a main body having an opening portion; a cylindrical member that is movable in a direction substantially perpendicular to the opening portion; and a shield member, an outer edge of which is engaged to an inner edge of the opening portion, and an inner edge of which is fitted upon an outer surface of the cylindrical member so as to be slidable thereon and so as to shield a gap between the main body and the cylindrical member. And the cylindrical member is movable through the opening portion in a direction of a central axis of the cylindrical member; at least a portion of an outer circumferential surface of the cylindrical member has a shape different from another portion thereof along the direction of the central axis; and the shield member contacts along the outer circumferential surface having the different shape, as the cylindrical member moves in the direction of the central axis.
    • 屏蔽装置包括:具有开口部分的主体; 圆筒形构件,其可在基本上垂直于所述开口部的方向上移动; 以及屏蔽构件,其外缘接合到所述开口部的内边缘,并且其内边缘装配在所述圆筒构件的外表面上以便在其上滑动,以便屏蔽所述间隙 在主体和圆柱形构件之间。 并且所述筒状构件能够在所述筒状构件的中心轴方向上穿过所述开口部移动, 圆柱形构件的外周表面的至少一部分具有沿着中心轴线的方向与其另一部分不同的形状; 并且屏蔽构件沿着具有不同形状的外周面接触,因为圆柱形构件沿着中心轴线的方向移动。
    • 6. 发明授权
    • Lock device of cartridge chamber door of camera
    • 相机墨盒室门锁装置
    • US5592253A
    • 1997-01-07
    • US515568
    • 1995-08-16
    • Tomoki NishimuraNoboru Akami
    • Tomoki NishimuraNoboru Akami
    • G03B17/00G03B17/02G03B17/30G03B17/26
    • G03B17/30
    • A lock device of a camera using a film cartridge having a light-shielding door shiftable between a light-shielding condition for shielding light to a photographic film in the film cartridge and a non-light-shielding condition for enabling the photographic film to be withdrawn from the film cartridge, the lock device comprises a cartridge chamber having an opening portion through which the film cartridge is loaded in the cartridge chamber, a cartridge chamber door being disposed in a shielding position for shielding the opening portion of the cartridge chamber when the light-shielding door of the film cartridge is at least in the non-light-shielding condition, a holding member shiftable between a prohibited position for prohibiting movement of the cartridge chamber door from the shielding position and an allowed position for allowing movement of the cartridge chamber door from the shielding position, and a limiting member for limiting movement of the holding member from the prohibited position to the allowed position.
    • 一种使用胶片暗盒的相机的锁定装置,该暗盒具有在用于将光屏蔽到暗盒中的照相胶片的遮光条件之间移动的遮光门和用于使照相胶卷被取出的非遮光条件 锁定装置包括一个盒室,该盒室具有一个开口部分,胶卷暗盒通过该开口部分装入暗盒室中;一个暗盒室门设置在屏蔽位置,用于遮蔽暗盒室的开口部分, 至少在非遮光状态下,保持构件能够在用于禁止暗盒室门从屏蔽位置移动的禁止位置和允许暗盒室的允许位置之间移动的保持构件 门,以及用于限制保持构件从禁止的p移动的限制构件 对于允许的位置。