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    • 1. 发明授权
    • Lens barrel
    • 镜筒
    • US09360655B2
    • 2016-06-07
    • US14589378
    • 2015-01-05
    • Panasonic Intellectual Property Management Co., Ltd.
    • Tetsuya UnoAtsushi HasegawaManabu KobayashiHiroyasu Fujinaka
    • G02B7/02G02B7/10G03B3/10G02B13/00G02B7/04G02B27/64G03B5/00
    • G02B7/10G02B7/04G02B13/009G02B27/646G03B3/10G03B5/00G03B17/04G03B2205/0053H04N5/225H04N5/2254H04N5/23287
    • A lens barrel includes at least one lens, the optical axis of the lens; the first frame (the fixed frame 900) having the first restricting portion (901, 902) and having an approximately cylindrical shape about the optical axis; the second frame (1000) having the cam groove (1036) and having an approximately cylindrical shape about the optical axis; the third frame (510) having the guide portion (511) which restricts inclination thereof with respect to the first contact portion (514) and the optical axis and having an approximately cylindrical shape about the optical axis; the drive arm (520) having a cam follower (523), the second restricting portion (524, 525) and the second contact portion (526), and having an approximately arcuate shape constituted of a portion of a circular cylinder about the optical axis or an approximately plate shape; the guide shaft (601) for guiding the guide in a movable manner in the optical axis direction; and the spring (603). The first restricting portion engages with the second restricting portion. The cam engages with the cam groove (1036). The drive arm moves approximately parallel to the optical axis due to the relative rotation of the second with respect to the first frame, the third is biased by the thus bringing the first contact portion and the second contact portion into contact with each other, and the third frame moves in the optical axis direction in an interlocking manner with the drive with the inclination of the guide being restricted by the guide.
    • 透镜镜筒包括至少一个透镜,透镜的光轴; 第一框架(固定框架900)具有第一限制部分(901,902),并且围绕光轴具有近似圆柱形的形状; 所述第二框架(1000)具有所述凸轮槽(1036)并且围绕所述光轴具有近似圆柱形的形状; 第三框架(510)具有引导部(511),其限制其相对于第一接触部(514)和光轴的倾斜,并且围绕光轴具有大致圆筒形; 所述驱动臂(520)具有凸轮从动件(523),所述第二限制部分(524,525)和所述第二接触部分(526),并且具有大致圆弧形状,所述大致弓形形状由围绕所述光轴 或近似板状; 用于沿光轴方向以可移动方式引导引导件的引导轴(601) 和弹簧(603)。 第一限制部分与第二限制部分接合。 凸轮与凸轮槽(1036)接合。 由于第二相对于第一框架的相对旋转,驱动臂大致平行于光轴移动,所以第三被偏置,从而使第一接触部分和第二接触部分彼此接触,并且 第三框架与驱动器以互锁的方式在光轴方向上移动,导向件的倾斜被引导件限制。
    • 2. 发明授权
    • Lens barrel
    • 镜筒
    • US09594229B2
    • 2017-03-14
    • US14849638
    • 2015-09-10
    • Panasonic Intellectual Property Management Co., Ltd.
    • Hiroyasu FujinakaToshiyuki NakadaTetsuya Uno
    • G02B7/10
    • G02B7/10G02B7/102G02B15/16G02B27/646
    • A lens barrel in which a lens can be moved in a direction parallel to an optical axis includes: a first frame having a cam follower and a cam follower base that holds the cam follower; and a second frame that has a cam groove engageable with the cam follower. The first frame and the second frame are moved relatively to each other along the optical axis. The cam follower base has a first end connected to the main body of the first frame via at least one thin portion, and a second end not connected to the main body. The thin portion is formed such that a thickness of the thin portion in a radial direction of the lens barrel is smaller than that of the cam follower base.
    • 透镜可以在平行于光轴的方向上移动的镜筒包括:具有凸轮从动件的第一框架和保持凸轮从动件的凸轮从动件底座; 以及具有可与凸轮从动件接合的凸轮槽的第二框架。 第一框架和第二框架沿光轴相对移动。 凸轮从动件底座具有经由至少一个薄部连接到第一框架的主体的第一端和不连接到主体的第二端。 薄部形成为使得透镜筒的径向上的薄部的厚度小于凸轮从动件基座的厚度。
    • 4. 发明授权
    • Lens barrel
    • US10509196B2
    • 2019-12-17
    • US15145171
    • 2016-05-03
    • Panasonic Intellectual Property Management Co., Ltd.
    • Tetsuya UnoAtsushi HasegawaManabu KobayashiHiroyasu Fujinaka
    • G02B7/10G03B3/10G02B13/00G02B7/04G02B27/64G03B5/00G03B17/04H04N5/225H04N5/232
    • A lens barrel includes at least one lens, the optical axis of the lens; the first frame (the fixed frame 900) having the first restricting portion (901, 902) and having an approximately cylindrical shape about the optical axis; the second frame (1000) having the cam groove (1036) and having an approximately cylindrical shape about the optical axis; the third frame (510) having the guide portion (511) which restricts inclination thereof with respect to the first contact portion (514) and the optical axis and having an approximately cylindrical shape about the optical axis; the drive arm (520) having a cam follower (523), the second restricting portion (524, 525) and the second contact portion (526), and having an approximately arcuate shape constituted of a portion of a circular cylinder about the optical axis or an approximately plate shape; the guide shaft (601) for guiding the guide in a movable manner in the optical axis direction; and the spring (603). The first restricting portion engages with the second restricting portion. The cam engages with the cam groove (1036). The drive arm moves approximately parallel to the optical axis due to the relative rotation of the second with respect to the first frame, the third is biased by the thus bringing the first contact portion and the second contact portion into contact with each other, and the third frame moves in the optical axis direction in an interlocking manner with the drive with the inclination of the guide being restricted by the guide.