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    • 8. 发明授权
    • Lens driving cam mechanism
    • 镜头驱动凸轮机构
    • US4950060A
    • 1990-08-21
    • US348253
    • 1989-05-05
    • Ken Nagasaka
    • Ken Nagasaka
    • G02B7/10
    • G02B7/10
    • A lens-driving cam mechanism includes a zoom cylinder rotatable about the optical axis of the lens and a zoom cam ring incapable of rotation about the optical axis provided on the peripheral surface of the zoom cylinder. A front cam portion and a rear cam portion are formed on the zoom cylinder. Cam followers which contact with the front cam portion and the rear cam portion are formed on the peripheral surface of the zoom cylinder. When the zoom cylinder rotates, the zoom cam ring is moved along the optical axis by the cooperation of the cam portions and the cam followers. The zoom cam ring has on the inner surface thereof a cam follower-inserting groove for permitting one of the cam followers to pass therethrough so that the zoom cylinder and the zoom cam ring can be assembled.
    • 透镜驱动凸轮机构包括可围绕透镜的光轴旋转的变焦圆筒和不能设置在变焦圆筒的圆周表面上的光轴旋转的变焦凸轮环。 在变焦圆筒上形成有前凸轮部和后凸轮部。 在变焦圆筒的周面上形成有与前凸轮部和后凸轮部接触的凸轮从动件。 当变焦圆筒旋转时,变焦凸轮环通过凸轮部分和凸轮从动件的配合沿光轴移动。 变焦凸轮环在其内表面上具有凸轮随动件插入槽,用于允许凸轮从动件之一通过,从而可以组装变焦缸和变焦凸轮环。
    • 10. 发明授权
    • Optical element holding mechanism and method of manufacturing the same
    • 光学元件保持机构及其制造方法
    • US4737017A
    • 1988-04-12
    • US664119
    • 1984-10-23
    • Ken Nagasaka
    • Ken Nagasaka
    • G02B7/02
    • G02B7/026Y10S359/90
    • A holding mechanism for holding an optical element comprises a holding frame and a retaining member. The holding frame includes first and second positioning portions. The optical element is positioned in one direction along parallel to the optical axis by the first positioning portion and is positioned in a direction perpendicular to the optical axis by the second positioning portion. After inserting the optical element and the retaining member into the holding frame, supersonic vibration is applied to generate heat and produce a high temperature at a contact portion of the holding frame and the retaining member, so that the contact portion welds due to the high temperature for establishing another positioning portion positioning the optical element in an opposite direction along to the optical axis. The retaining member is molded from a thermoplastic resin, and the holding frame can be made of a metal material as well as of a thermoplastic resin.
    • 用于保持光学元件的保持机构包括保持框架和保持构件。 保持框架包括第一和第二定位部分。 光学元件通过第一定位部分沿着平行于光轴的一个方向定位,并且通过第二定位部分在垂直于光轴的方向上定位。 在将光学元件和保持构件插入保持框架之后,施加超音速振动以在保持框架和保持构件的接触部分产生热量并产生高温,使得接触部分由于高温 用于建立沿着光轴沿相反方向定位光学元件的另一个定位部分。 保持构件由热塑性树脂成型,并且保持框架可以由金属材料以及热塑性树脂制成。