Apparatus for driving stepper motor of camera
    2.
    发明授权
    Apparatus for driving stepper motor of camera 失效
    摄像机步进电机驱动装置

    公开(公告)号:US6040677A

    公开(公告)日:2000-03-21

    申请号:US20849

    申请日:1998-02-09

    IPC分类号: G02B7/08 H02P8/24 H02P8/00

    CPC分类号: H02P8/24 G02B7/08

    摘要: A stepping motor driving apparatus for a camera having a 1-2 phase excitation type stepping motor which is driven by a 1-2 phase excitation in response to a drive signal includes a drive control device for stopping the stepping motor at a 1-phase excitation position by de-energizing the stepping motor at the 1-phase excitation position and for stopping the stepping motor at a 2-phase excitation position while maintaining the excitation in a high precision drive control in which the stepping motor is driven at high precision. The drive control device stops the stepping motor by de-energizing the stepping motor always at the 1-phase excitation position in a normal drive control in which no precise drive control of the stepping motor is needed.

    摘要翻译: 一种用于具有响应于驱动信号由1-2相激励驱动的1-2相励磁型步进电机的摄像机的步进电机驱动装置,包括用于以1相激励方式停止步进电机的驱动控制装置 通过使步进电动机在1相励磁位置断电,并将步进电动机停止在2相励磁位置,同时以高精度驱动步进电机的高精度驱动控制保持励磁。 驱动控制装置在不需要步进电动机的精确驱动控制的正常驱动控制中,使步进电动机总是处于1相励磁位置时停止步进电动机。

    Lens position adjusting method for zoom lens
    4.
    发明授权
    Lens position adjusting method for zoom lens 失效
    变焦镜头镜头位置调整方法

    公开(公告)号:US6122112A

    公开(公告)日:2000-09-19

    申请号:US78541

    申请日:1998-05-14

    IPC分类号: G02B7/10 G02B15/14 G03B17/00

    CPC分类号: G02B7/10

    摘要: A lens position adjusting method for a zoom lens includes at least two movable lens groups, one lens group being primarily utilized for focusing and the other lens group being primarily utilized for magnification, wherein an object at a predetermined distance is in-focus when each movable lens group is positioned at each of respective initialized positions thereof with the zoom lens being set at a first focal length, and wherein each movable lens group is moved to vary magnification in accordance with a moving amount from the initialized positions of the movable lens groups. The lens position adjusting method includes: arranging a testing object at a position corresponding to a predetermined distance from the zoom lens; arranging a focal point detecting device at a reference focal plane or in the vicinity of the reference focal plane of the zoom lens; moving each movable lens group to each position at the first focal length; moving each movable lens group along an optical axis of the zoom lens so that a lens moving amount of each movable lens group is detected when a sharp image of the testing object is formed on the focal point detecting device via the zoom lens; making each of the positions of the movable lens groups as provisional initialized positions after completion of movement by the lens moving amount from the initialized positions; moving each movable lens group from the provisional initialized positions to positions at a predetermined focal length; detecting the lens moving amount by moving the movable lens group being chiefly utilized for focusing; obtaining a defocus amount from the lens moving amount; and obtaining an adjusting amount according to the defocus amount detected at given plurality of focal lengths so that each position of the movable lens group at which the in-focus state with the testing object is obtained at the first focal length serves as each adjusted initialized position.

    摘要翻译: 用于变焦透镜的透镜位置调节方法包括至少两个可移动透镜组,一个透镜组主要用于聚焦,另一个透镜组主要用于放大,其中当每个可移动透镜组 透镜组位于其各自的初始化位置,变焦透镜被设置在第一焦距处,并且其中移动每个可移动透镜组以根据来自可移动透镜组的初始化位置的移动量来改变放大倍率。 透镜位置调整方法包括:将测试对象布置在与变焦透镜相对应的预定距离的位置处; 将焦点检测装置设置在参考焦平面或变焦透镜的参考焦平面附近; 将每个可移动透镜组移动到在第一焦距处的每个位置; 沿着变焦透镜的光轴移动每个可移动透镜组,使得当通过变焦透镜在焦点检测装置上形成检测对象的清晰图像时,检测每个可移动透镜组的透镜移动量; 使所述可移动透镜组的每个位置作为从所述初始化位置通过所述透镜移动量的移动完成之后的临时初始化位置; 将每个可移动透镜组从临时初始化位置移动到预定焦距的位置; 通过移动主要用于聚焦的可移动透镜组来检测透镜移动量; 从透镜移动量获得散焦量; 并且根据在给定的多个焦距处检测到的散焦量获得调节量,使得在第一焦距处获得具有被检查物体的聚焦状态的可移动透镜组的每个位置用作每个调整的初始化位置 。

    Motor-driven auto-focusing system
    5.
    发明授权
    Motor-driven auto-focusing system 失效
    电动自动对焦系统

    公开(公告)号:US6055378A

    公开(公告)日:2000-04-25

    申请号:US021860

    申请日:1998-02-11

    CPC分类号: G02B7/08

    摘要: An auto-focusing device of a camera includes a photographic lens having a focusing lens group guided along an optical axis, a stepping motor for moving the focusing lens group along the optical axis to bring an object into focus; and a controller for controlling the stepping motor to rotate stepwise when the depth of focus is smaller than a predetermined value and for controlling the stepping motor to rotate the rotor by even-numbered steps when the depth of focus of the photographic lens is greater than the predetermined value.

    摘要翻译: 照相机的自动聚焦装置包括具有沿光轴引导的聚焦透镜组的摄影镜头,用于沿着光轴移动聚焦透镜组以使物体聚焦的步进电机; 以及控制器,用于当焦点深度小于预定值时控制步进电动机逐步旋转,并且当摄影镜头的焦深大于所述摄影镜头的深度时,用于控制步进电机使转子旋转偶数步 预定值。

    Drive apparatus for zoom lens barrel
    6.
    发明授权
    Drive apparatus for zoom lens barrel 失效
    变焦镜头驱动装置

    公开(公告)号:US5930053A

    公开(公告)日:1999-07-27

    申请号:US987783

    申请日:1997-12-09

    CPC分类号: G02B7/102

    摘要: A drive apparatus for a zoom lens barrel having a plurality of movable lens groups, comprising: a lens barrel body which supports lens frames of the movable lens groups to move linearly in the optical axis direction, a lens drive unit which is assembled independently of the lens barrel body, driven pins provided on the lens frames and projecting outward from the barrel body in the same direction, and a plurality of drive members having engaging portions engageable with the driven pins. The drive motor which independently drives the drive members and drive gears connects the drive members to the drive motor, is provided in said lens drive unit. The lens drive unit is secured to the lens barrel body in a state that the driven pins projecting from the lens barrel body are engaged by the engaging portions of the corresponding drive members of the lens drive unit.

    摘要翻译: 一种用于具有多个可移动透镜组的变焦透镜镜筒的驱动装置,包括:透镜筒体,其支撑可移动透镜组的透镜框以沿光轴方向线性移动;透镜驱动单元,其独立于 透镜筒体,设置在透镜框上的驱动销并沿着相同的方向从筒体向外突出;以及多个驱动构件,其具有可与从动销接合的接合部。 在所述透镜驱动单元中设置独立地驱动驱动构件和驱动齿轮的驱动马达将驱动构件连接到驱动马达。 在透镜驱动单元的相应驱动部件的接合部分与透镜筒主体突出的从动销接合的状态下,透镜驱动单元被固定到镜筒体上。

    Time-sharing drive apparatus for motor of camera
    7.
    发明授权
    Time-sharing drive apparatus for motor of camera 失效
    相机电机分时驱动装置

    公开(公告)号:US6014523A

    公开(公告)日:2000-01-11

    申请号:US945

    申请日:1997-12-30

    CPC分类号: G03B7/10

    摘要: A time-sharing drive apparatus for a camera having a plurality of motors includes a motor drive control system which alternately drives the motors in a time-sharing control. When the camera includes a zoom lens provided with a first stationary lens group, a second movable lens group and a third movable lens group, the motors are composed of a first motor which opens and closes a diaphragm of the zoom lens, a second motor which moves the second lens group, and a third motor which drives the third lens group. The motor drive control system which drives the first, second and third motors is controlled via a time-sharing system.

    摘要翻译: 具有多个电动机的摄像机的分时驱动装置包括电动机驱动控制系统,其在分时控制中交替地驱动电动机。 当相机包括设置有第一固定透镜组,第二可移动透镜组和第三可移动透镜组的变焦透镜时,电动机由打开和关闭变焦透镜的光阑的第一电动机组成,第二电动机 移动第二透镜组,以及驱动第三透镜组的第三电动机。 通过分时系统控制驱动第一,第二和第三电动机的电机驱动控制系统。

    Drive apparatus for zoom lens barrel
    8.
    发明授权
    Drive apparatus for zoom lens barrel 失效
    变焦镜头驱动装置

    公开(公告)号:US5940223A

    公开(公告)日:1999-08-17

    申请号:US987778

    申请日:1997-12-09

    CPC分类号: G02B7/102

    摘要: A drive apparatus for a zoom lens barrel having at least two movable zooming lens groups which are moved upon zooming, comprising: two lens frames which support the movable zooming lens groups, two cam pins integral with the lens frames and extending in the same direction, two parallel rotatable drive plates which are provided with cam grooves in which the cam pins are fitted, and two drive units which drive the respective drive plates upon zooming. The cam profile of the cam grooves of the drive plates is such that the movable zooming lens groups are moved in predetermined directions by the rotation of the drive plates during zooming.

    摘要翻译: 一种用于变焦透镜镜筒的驱动装置,具有至少两个在变焦时移动的可移动变焦透镜组,包括:支撑可移动变焦透镜组的两个透镜框,与透镜框一体并沿相同方向延伸的两个凸轮销, 两个平行的可旋转的驱动板,其中装有凸轮销的凸轮槽,以及在变焦时驱动各个驱动板的两个驱动单元。 驱动板的凸轮槽的凸轮轮廓使得可变焦镜头组在变焦期间通过驱动板的旋转而在预定方向上移动。

    Motor driven diaphragm apparatus for lens barrel
    9.
    发明授权
    Motor driven diaphragm apparatus for lens barrel 失效
    镜头镜筒的电动驱动隔膜装置

    公开(公告)号:US5926324A

    公开(公告)日:1999-07-20

    申请号:US987083

    申请日:1997-12-09

    CPC分类号: G02B7/08

    摘要: A motor-driven diaphragm apparatus for a lens barrel having a plurality of lens groups and a diaphragm mechanism, in which a diaphragm block provided with a plurality of diaphragm blades and a diaphragm-opening-and-closing ring which opens and closes an aperture defined by the diaphragm blades, is integrally provided with a diaphragm-opening-and-closing arm that projects from the diaphragm block and that is provided with a radial association groove for the diaphragm-opening-and-closing ring. Also provided are front and rear lens barrel blocks which support the lens groups, wherein said diaphragm block is held between the front and rear lens barrel blocks so that the diaphragm-opening-and-closing arm and the association groove project outwardly.

    摘要翻译: 一种用于具有多个透镜组和隔膜机构的镜筒的电动驱动隔膜装置,其中设置有多个光阑叶片的隔膜块和打开和关闭限定的孔的光阑开闭环 通过隔膜叶片一体地设置有从隔膜块突出并且设置有用于隔膜开闭环的径向关联槽的隔膜开闭臂。 还提供了支撑透镜组的前后镜筒组件,其中所述隔膜块保持在前后镜筒组件之间,使得隔膜开闭臂和关节凹槽向外突出。

    Drive apparatus for zoom lens barrel
    10.
    发明授权
    Drive apparatus for zoom lens barrel 失效
    变焦镜头驱动装置

    公开(公告)号:US5886831A

    公开(公告)日:1999-03-23

    申请号:US987777

    申请日:1997-12-09

    CPC分类号: G02B7/102

    摘要: A drive apparatus for a zoom lens barrel, in which at least two movable zooming lens groups are moved upon zooming, includes lens frames which respectively hold the two movable zooming lens groups, two parallel drive plates which are provided with cam grooves and which are pivoted to a common shaft to move the two movable zooming lens groups, a pair of drive gears which are in mesh with corresponding sector gears of the drive plates, and two drive mechanisms which individually drive the drive gears upon zooming.

    摘要翻译: 一种用于变焦透镜镜筒的驱动装置,其中至少两个可移动变焦透镜组在变焦时移动,包括分别保持两个可移动变焦透镜组的透镜框,设置有凸轮槽的两个平行的驱动板,并且枢转 移动到共同的轴以移动两个可移动变焦透镜组,与驱动板的相应扇形齿轮啮合的一对驱动齿轮,以及在变焦时单独驱动驱动齿轮的两个驱动机构。