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    • 2. 发明授权
    • Lens driving device and image forming apparatus
    • 透镜驱动装置和图像形成装置
    • US08077409B2
    • 2011-12-13
    • US12546988
    • 2009-08-25
    • Tetsuya Iwasaki
    • Tetsuya Iwasaki
    • G02B7/02
    • G02B7/04
    • A drive mechanism includes a rotational cylinder capable of moving upon the optical axis, a cam part on a fixed member and a cam follower which is formed on the rotational cylinder fitting with the cam part and has a conical portion and a cylindrical portion. The cam part includes a tapered cam groove formed such that the cylinder extends in the optical axis upon a range whereupon the cylinder moves from the collapsed state to a photography state and a planar surface formed such that the cylinder does not move upon the optical axis upon the photography range. The conical portion fits with the cam groove of the cam part upon the range whereupon the cylinder moves upon the optical axis, and the cylindrical portion fits with the planar surface of the cam part upon the range whereupon the cylinder does not move upon the optical axis.
    • 驱动机构包括能够在光轴上移动的旋转圆筒,固定构件上的凸轮部分和形成在与凸轮部件配合的旋转圆柱体上并具有圆锥形部分和圆柱形部分的凸轮从动件。 凸轮部分包括锥形凸轮槽,所述锥形凸轮槽形成为使得气缸在光轴上延伸一定范围,随后气缸从折叠状态移动到摄影状态,并且形成为使得气缸不在光轴上移动的平面 摄影范围。 圆锥形部分与凸轮部分的凸轮槽配合在圆柱体在光轴上移动的范围上,圆柱形部分与凸轮部分的平面相配合,在该范围之后,圆柱体在光轴上不移动 。
    • 3. 发明授权
    • Lens barrel, camera and information device
    • 镜筒,相机和信息装置
    • US08045277B2
    • 2011-10-25
    • US12903314
    • 2010-10-13
    • Tetsuya Iwasaki
    • Tetsuya Iwasaki
    • G02B15/14G02B7/02
    • G02B7/102G03B17/04
    • A cam locus of the cam surface on the image plane side of the first group cam groove of the rotating cylinder has an angle to a flat surface where the optical axis crosses perpendicularly. When the cam follower engages with the cam surface on the image plane side, an impact force is dispersed into the optical axis direction and the rotating direction of the rotating cylinder, and a load on the cam follower and male helicoid is reduced. When the first group lens system is pressed by a light load, the cam follower of the first group lens movement frame engages with the cam surface on the image plane side, and an angle of the cam surface is equal to an angle of a force occurring in the rotating direction. Therefore, the rotating cylinder does not rotate easily, and returns to its previous position when the load is removed.
    • 旋转圆筒的第一组凸轮槽的像面侧的凸轮表面的凸轮轨迹与光轴垂直交叉的平坦表面成角度。 当凸轮从动件与图像平面侧的凸轮表面接合时,冲击力分散在旋转圆筒的光轴方向和旋转方向上,并且凸轮从动件和雄螺旋体上的负载减小。 当第一组透镜系统被轻负载按压时,第一组透镜运动框架的凸轮从动件与图像平面侧上的凸轮表面接合,并且凸轮表面的角度等于产生的力的角度 在旋转方向。 因此,旋转筒不能容易地旋转,并且当负载被移除时返回到其先前的位置。
    • 5. 发明申请
    • Lens Barrel, Camera and Information Device
    • 镜头筒,相机和信息设备
    • US20110128634A1
    • 2011-06-02
    • US12903314
    • 2010-10-13
    • Tetsuya Iwasaki
    • Tetsuya Iwasaki
    • G02B7/10
    • G02B7/102G03B17/04
    • A cam locus of the cam surface on the image plane side of the first group cam groove of the rotating cylinder has an angle to a flat surface where the optical axis crosses perpendicularly. When the cam follower engages with the cam surface on the image plane side, an impact force is dispersed into the optical axis direction and the rotating direction of the rotating cylinder, and a load on the cam follower and male helicoid is reduced. When the first group lens system is pressed by a light load, the cam follower of the first group lens movement frame engages with the cam surface on the image plane side, and an angle of the cam surface is equal to an angle of a force occurring in the rotating direction. Therefore, the rotating cylinder does not rotate easily, and returns to its previous position when the load is removed.
    • 旋转圆筒的第一组凸轮槽的像面侧的凸轮表面的凸轮轨迹与光轴垂直交叉的平坦表面成角度。 当凸轮从动件与图像平面侧的凸轮表面接合时,冲击力分散在旋转圆筒的光轴方向和旋转方向上,并且凸轮从动件和雄螺旋体上的负载减小。 当第一组透镜系统被轻负载按压时,第一组透镜运动框架的凸轮从动件与图像平面侧上的凸轮表面接合,并且凸轮表面的角度等于产生的力的角度 在旋转方向。 因此,旋转筒不能容易地旋转,并且当负载被移除时返回到其先前的位置。
    • 6. 发明授权
    • Lens barrel and camera including it
    • 镜筒和相机包括它
    • US07852578B2
    • 2010-12-14
    • US12439112
    • 2007-09-04
    • Tetsuya Iwasaki
    • Tetsuya Iwasaki
    • G02B7/02
    • G02B7/102G02B7/10G02B9/08G02B9/12G02B9/34G02B9/60G02B13/001G02B13/009
    • A lens barrel includes a plurality of lens groups (1, 2), lens frames (1a, 2a) to hold the plurality of lens groups, respectively, a lens driving apparatus to drive the plurality of lens frames and a fixed member (5) to hold the lens driving apparatus. The lens driving group includes a rotational member (6) which is forwardly moved while rotating relative to the fixed member (5), a linearly moving guide member (7) which moves with the rotational member (6) in the optical axial direction while limiting rotation of the lens frames and is not capable of rotating, and a linearly moving-guide biasing member (8) which is capable of moving in the optical axial direction relative to the linearly moving guide member and is configured to limit rotation. The linearly moving-guide biasing member has a resilient structure configured to bias the linearly moving guide member in the optical axial direction.
    • 镜筒包括多个透镜组(1,2),分别保持多个透镜组的透镜框(1a,2a),用于驱动多个透镜框的透镜驱动装置和固定构件(5) 以保持透镜驱动装置。 透镜驱动组包括:旋转构件(6),其相对于固定构件(5)旋转而向前移动;线性移动引导构件(7),其在旋转构件(6)沿光轴方向移动,同时限制 透镜框的旋转并且不能旋转;以及线性移动导向偏置构件(8),其能够相对于直线移动的导向构件在光轴方向上移动并且被构造成限制旋转。 线性移动引导偏置构件具有弹性结构,其构造成在线性移动引导构件沿光轴方向偏置。
    • 7. 发明申请
    • SIGNAL LEVEL CONVERSION CIRCUIT
    • 信号电平转换电路
    • US20100214002A1
    • 2010-08-26
    • US12703928
    • 2010-02-11
    • Hideaki MiyoshiTetsuya IwasakiTaketoshi TsujitaTomohiko Konno
    • Hideaki MiyoshiTetsuya IwasakiTaketoshi TsujitaTomohiko Konno
    • H03L5/00
    • H03K3/35613
    • A signal level conversion circuit includes three or more level shift circuits to output internal output signals upon receiving input signals, respectively. Each of the level shift circuits is formed of a common electrical element and an electrical element connected to the common electrical element. A voltage higher than that supplied to the common electrical element is supplied to the electrical element. A buffer circuit having an input tolerant function is provided in each of the common electrical elements. The internal output signals are set at lower level than the input signals by the buffer circuits, and the internal output signal outputted from one of the level shift circuits is further outputted via other level shift circuits.
    • 信号电平转换电路包括分别在接收输入信号时输出内部输出信号的三个或更多个电平移位电路。 每个电平移位电路由公共电气元件和连接到公共电气元件的电气元件形成。 高于提供给公共电气元件的电压被提供给电气元件。 在每个公共电气元件中提供具有输入容限功能的缓冲电路。 内部输出信号被设置为比缓冲电路的输入信号低的电平,并且从其中一个电平移位电路输出的内部输出信号通过其它电平移位电路进一步输出。
    • 8. 发明申请
    • LENS DRIVE UNIT, LENS BARREL, AND IMAGE FORMING DEVICE
    • 镜头驱动单元,镜头条和图像形成装置
    • US20100046098A1
    • 2010-02-25
    • US12541761
    • 2009-08-14
    • TETSUYA IWASAKI
    • TETSUYA IWASAKI
    • G02B7/04
    • G02B7/102
    • A lens drive unit is configured to move a lens holding frame to a desired position by the engagement between a cam groove of a rotary cylinder and a cam follower of the lens holding frame. The lens drive unit includes a second linearly-moving guide cylinder arranged between the lens holding frame and a first linearly-moving guide cylinder. The second linearly-moving guide cylinder can be moved in the optical a direction with rotation of the rotary cylinder by the engagement of a cam follower of the second linearly-moving guide cylinder with a second cam groove of the rotary cylinder. The lens holding frame is guided in the optical axis direction by the second linearly-moving guide cylinder and moved in the optical axis direction with rotation of the rotary cylinder by the engagement of a cam follower of the lens holding frame with a first cam groove of the rotary cylinder.
    • 透镜驱动单元构造成通过旋转圆筒的凸轮槽和透镜保持框架的凸轮从动件之间的接合来将透镜保持框架移动到期望的位置。 透镜驱动单元包括布置在透镜保持框架和第一直线移动导向筒之间的第二线性移动导向筒。 通过第二直线运动导向筒的凸轮从动件与旋转圆筒的第二凸轮槽的接合,第二直线运动导向筒可以沿旋转圆筒的旋转沿光学方向移动。 透镜保持框架通过第二线性移动导向筒在光轴方向上被引导,并且通过旋转圆筒的旋转通过透镜保持框架的凸轮从动件与第一凸轮槽的接合而在光轴方向上移动 旋转圆筒。
    • 9. 发明申请
    • LENS BARREL AND CAMERA INCLUDING IT
    • 镜头条和相机包括它
    • US20100020412A1
    • 2010-01-28
    • US12439112
    • 2007-09-04
    • Tetsuya Iwasaki
    • Tetsuya Iwasaki
    • G02B7/10G02B7/02
    • G02B7/102G02B7/10G02B9/08G02B9/12G02B9/34G02B9/60G02B13/001G02B13/009
    • A lens barrel includes a plurality of lens groups (1, 2), lens frames (1a, 2a) to hold the plurality of lens groups, respectively, a lens driving apparatus to drive the plurality of lens frames and a fixed member (5) to hold the lens driving apparatus. The lens driving group includes a rotational member (6) which is forwardly moved while rotating relative to the fixed member (5), a linearly moving guide member (7) which moves with the rotational member (6) in the optical axial direction while limiting rotation of the lens frames and is not capable of rotating, and a linearly moving-guide biasing member (8) which is capable of moving in the optical axial direction relative to the linearly moving guide member and is configured to limit rotation. The linearly moving-guide biasing member has a resilient structure configured to bias the linearly moving guide member in the optical axial direction.
    • 镜筒包括多个透镜组(1,2),分别保持多个透镜组的透镜框(1a,2a),用于驱动多个透镜框的透镜驱动装置和固定构件(5) 以保持透镜驱动装置。 透镜驱动组包括:旋转构件(6),其相对于固定构件(5)旋转而向前移动;线性移动引导构件(7),其在旋转构件(6)沿光轴方向移动,同时限制 透镜框的旋转并且不能旋转;以及线性移动导向偏置构件(8),其能够相对于直线移动的导向构件在光轴方向上移动并且被构造成限制旋转。 线性移动引导偏置构件具有弹性结构,其构造成在线性移动引导构件沿光轴方向偏置。