公开(公告)号：US20040160678A1

公开(公告)日：2004-08-19

申请号：US10771300

申请日：2004-02-05

Applicant: PENTAX Corporation

Inventor： Hiroshi Nomura ,  Yoshihiro Yamazaki ,  Isao Okuda

IPC: G02B015/14

CPC classification number: G02B7/102

Abstract: A retracting mechanism of a zoom lens barrel includes first, second and third lens groups, wherein the first and third lens groups are integrally moved along an optical axis during variation of a focal length, and wherein at least one of the first and third lens groups is moved relative to the other to reduce a distance therebetween when the zoom lens barrel is fully retracted. The retracting mechanism includes first, second and third lens group moving rings; a cam mechanism for independently moving the first and second lens group moving rings; a second lens group support frame; an intermediate member fixed to the second lens group support frame; and a biasing device for biasing the third lens group moving ring away from the first lens group moving ring. The biasing device functions between the intermediate member and the third lens group moving ring.

Abstract translation: 变焦透镜镜筒的缩回机构包括第一透镜组和第三透镜组，其中第一透镜组和第三透镜组在焦距变化期间沿着光轴一体地移动，并且其中第一和第三透镜组中的至少一个 当变焦镜筒完全缩回时，它们相对于另一个移动以减小它们之间的距离。 回缩机构包括第一，第二和第三透镜组移动环; 用于独立地移动第一和第二透镜组移动环的凸轮机构; 第二透镜组支撑框架; 固定到所述第二透镜组支撑框架的中间构件; 以及用于使第三透镜组移动环偏离第一透镜组移动环的偏置装置。 偏置装置在中间构件和第三透镜组移动环之间起作用。

公开(公告)号：US20030117725A1

公开(公告)日：2003-06-26

申请号：US10364473

申请日：2003-02-12

Applicant: PENTAX Corporation

Inventor： Hiroshi Nomura ,  Yoshihiro Yamazaki ,  Isao Okuda ,  Satoru Nakamura

IPC: G02B007/02

CPC classification number: G02B7/102

Abstract: Lens barrel has a lens supporting frame to which a frontmost lens group is fixed, a first moving frame to which the lens supporting frame is engaged, a second moving frame to which a rear lens group which is positioned behind the frontmost lens group is supported, and a support frame movement mechanism for moving the first and second moving frame between ready-to-photograph positions and accommodation positions behind the ready-to-photograph positions in an optical axis direction. The support frame movement mechanism makes the first moving frame and the second moving frame rotate about the optical axis relative to each other with the lens supporting frame and the second moving frame being in contact with each other when the first moving frame and the second moving frame are positioned in the vicinity of accommodation positions. One of the lens supporting frames includes a low-frictional portion provided on a contacting surface thereof.

Abstract translation: 透镜筒具有固定有最前面的透镜组的透镜支撑框架，与透镜支撑框架接合的第一移动框架，支撑位于最前面的透镜组后面的后透镜组的第二移动框架， 以及支撑框架移动机构，用于在第一和第二移动框架在准备照片位置和准备照片位置之后的光轴方向上的调节位置之间移动。 支撑框架移动机构使得当第一移动框架和第二移动框架在第一移动框架和第二移动框架相对于彼此接触时，第一移动框架和第二移动框架相对于彼此相对于彼此旋转， 位于住宿位置附近。 透镜支撑框架之一包括设置在其接触表面上的低摩擦部分。

公开(公告)号：US20040156122A1

公开(公告)日：2004-08-12

申请号：US10771402

申请日：2004-02-05

Applicant: PENTAX Corporation

Inventor： Hiroshi Nomura ,  Yoshihiro Yamazaki ,  Isao Okuda

IPC: G02B015/14

CPC classification number: G02B7/10

Abstract: A lens barrel includes a holder holding an image pick-up device; a stationary barrel having a female helicoid; a gear/helicoid ring including an annular rib, a male helicoid formed on the annular rib and engaged with the female helicoid, and a spur gear formed on the male helicoid; a pinion engaged with the spur gear; a linear guide ring provided around the gear/helicoid ring; a outer circumferential groove formed on the gear/helicoid ring; and bayonet lugs projecting rearwards from the linear guide ring and engaging in the circumferential groove. Rotation of the gear/helicoid ring causes a lens group to move along the optical axis. At least a portion of a rear end of the male helicoid extends rearwards. At least a portion of the rear extension portion overlaps the holder in the optical axis direction when the gear/helicoid ring stops retracting at a predetermined position.

Abstract translation: 镜筒包括保持摄像装置的保持器; 具有雌螺旋的固定筒; 包括环形肋的齿轮/螺旋环，形成在环形肋上并与雌螺旋结合的阳螺旋形，以及形成在雄螺旋上的正齿轮; 与正齿轮啮合的小齿轮; 设置在齿轮/螺旋环周围的线性导环; 形成在齿轮/螺旋环上的外周槽; 以及从直线引导环向后突出并接合在周向凹槽中的卡口凸耳。 齿轮/螺旋环的旋转导致透镜组沿着光轴移动。 男性螺旋体的后端的至少一部分向后延伸。 当齿轮/螺旋环停止在预定位置处缩回时，后延伸部分的至少一部分在光轴方向上与支架重叠。

公开(公告)号：US20030112526A1

公开(公告)日：2003-06-19

申请号：US10364334

申请日：2003-02-12

Applicant: PENTAX Corporation

Inventor： Hiroshi Nomura ,  Yoshihiro Yamazaki ,  Isao Okuda ,  Satoru Nakamura

IPC: G02B015/14

CPC classification number: G02B7/102

Abstract: A lens barrel includes a movable lens frame and a cam ring for moving the movable lens frame in a direction of an optical axis via a movement of the cam ring which is rotatable about the optical axis and movable in the direction thereof. The lens barrel includes a stationary ring provided around, and coaxial with, the cam ring; a rotatable ring provided around, and coaxial with, the stationary barrel, the rotatable ring being driven to rotate about the optical axis. A cam follower extends radially outwards from the cam ring, and a cam through-slot and a rotation transfer groove which are formed on the stationary ring and the rotatable ring, respectively, so that the cam follower is engaged in the cam through-slot and corresponding rotation transfer groove. The cam through-slot includes a linear and an inclined slot portion.

Abstract translation: 透镜镜筒包括可移动透镜框架和凸轮环，用于通过可围绕光轴旋转并可在其方向上移动的凸轮环的移动来沿着光轴的方向移动可移动透镜框架。 镜筒包括设置在凸轮环周围并与凸轮环同轴的固定环; 设置在静止筒周围并与固定筒同轴的可旋转环，可旋转环被驱动以围绕光轴旋转。 凸轮随动件从凸轮环径向向外延伸，以及分别形成在固定环和可旋转环上的凸轮通槽和旋转传递槽，使得凸轮从动件接合在凸轮通孔中，并且 相应的旋转传送槽。 凸轮通槽包括线性和倾斜槽部分。

公开(公告)号：US20040160683A1

公开(公告)日：2004-08-19

申请号：US10771419

申请日：2004-02-05

Applicant: PENTAX Corporation

Inventor： Hiroshi Nomura ,  Yoshihiro Yamazaki ,  Isao Okuda

IPC: G02B007/02

CPC classification number: G02B7/102

Abstract: A zoom lens barrel includes a cam ring which is driven to rotate; a first lens frame which is positioned around the cam ring, supports a frontmost lens group of a zoom lens system, and includes a first cam follower; a light-shield exterior ring positioned around the first lens frame, and includes a second cam follower; and first and second outer cam grooves formed on an outer peripheral surface of the cam ring so that the first and second cam followers are engaged in the first and second outer cam grooves, respectively. The second cam follower is engaged in the second outer cam groove through a linear guide slot formed on the first lens frame. Zooming ranges of the first and second outer cam grooves are shaped so as to move the first lens frame and the light-shield exterior ring in the same moving path.

公开(公告)号：US20040156181A1

公开(公告)日：2004-08-12

申请号：US10771299

申请日：2004-02-05

Applicant: PENTAX Corporation

Inventor： Hiroshi Nomura ,  Yoshihiro Yamazaki ,  Isao Okuda

IPC: G03B015/02

CPC classification number: G02B7/28

Abstract: A light shielding structure of a retractable lens barrel includes a lens system, a lens frame to which a lens group is fixed; at least one movable annular member into which the lens frame is screw-engaged, and which is moved along the optical axis in a predetermined moving manner; a light shield member which is supported by the movable annular member to be movable along the optical axis relative to the movable annular member, and having a rearward movement extremity relative to the movable annular member; and a biasing member which is positioned between the light shield member and the lens frame in a compressed fashion to bias the light shield member toward the rearward movement extremity thereof relative to the movable annular member.

Abstract translation: 可伸缩镜筒的遮光结构包括透镜系统，透镜组固定到其上的透镜框; 至少一个可移动的环形构件，透镜框架被螺纹接合在其中，并且以预定的移动方式沿着光轴移动; 光屏蔽构件，其由可移动环形构件支撑成可相对于可移动环形构件沿光轴移动，并且相对于可移动环形构件具有向后运动的末端; 以及偏压构件，其以压缩方式定位在所述遮光构件和所述透镜框架之间，以相对于所述可移动环形构件朝向所述遮光构件向后移动端部偏压。

公开(公告)号：US20040196573A1

公开(公告)日：2004-10-07

申请号：US10827256

申请日：2004-04-20

Applicant: PENTAX Corporation

Inventor： Hiroshi Nomura ,  Yoshihiro Yamazaki ,  Isao Okuda ,  Satoru Nakamura

IPC: G03B017/00 ,  G02B015/14

CPC classification number: G02B7/102

Abstract: A lens barrel includes a guide barrel, an outer ring, an inner ring, a cam ring and a movable lens frame, arranged in that order from outermost side, wherein the axes thereof coincide with a common optical axis, the outer ring being guided linearly in the optical axis direction by the stationary barrel, the inner ring being linearly guided in the optical axis direction by the outer ring, and the cam ring being rotatable to move the movable lens frame in the optical axis direction; and a lens barrier mechanism having an aperture positioned in front of the movable lens frame, the lens barrier mechanism being provided on a front opening of the inner ring, for opening and closing the aperture.

Abstract translation: 镜筒包括从最外侧按顺序布置的引导筒，外圈，内环，凸轮环和可移动透镜框，其中轴与公共光轴重合，外圈被线性引导 通过固定筒在光轴方向上，内环通过外圈在光轴方向上线性地引导，并且凸轮环可旋转以使可动透镜框在光轴方向上移动; 以及透镜屏障机构，其具有定位在可移动透镜框架前面的孔，透镜屏障机构设置在内圈的前开口上，用于打开和关闭孔。

公开(公告)号：US20040160679A1

公开(公告)日：2004-08-19

申请号：US10776238

申请日：2004-02-12

Applicant: PENTAX Corporation

Inventor： Hiroshi Nomura ,  Yoshihiro Yamazaki ,  Isao Okuda

IPC: G02B015/14

CPC classification number: G02B7/102

Abstract: A retracting mechanism of a zoom lens barrel includes a first through third lens group moving rings; a first linear guide projection formed on the first lens group moving ring to be engaged in a linear guide slot from outside the second lens group moving ring, the first linear guide projection including a hanging groove formed therealong, a rear end of the hanging groove being closed; a second linear guide projection formed on the third lens group moving ring to be engaged in the linear guide slot from inside the second lens group moving ring; and a linear moving key projecting from a front end of the second linear guide projection to be engaged in the hanging groove. A rear moving limit of the third lens group moving ring is determined by contact of the linear moving key with the closed end of the hanging groove.

Abstract translation: 变焦镜筒的回缩机构包括第一至第三透镜组移动环; 形成在第一透镜组移动环上的第一线性引导突起，其从第二透镜组移动环的外侧接合在线性引导槽中，第一直线引导突起包括沿其形成的悬挂槽，悬挂槽的后端为 关闭; 第二线性引导突起，形成在第三透镜组移动环上，以从第二透镜组移动环的内部接合在线性引导槽中; 以及从所述第二线性引导突起的前端伸出以与所述悬挂槽接合的线性移动键。 第三透镜组移动环的后移动极限是通过线性移动键与悬挂槽的封闭端的接触来确定的。

公开(公告)号：US20040156127A1

公开(公告)日：2004-08-12

申请号：US10769925

申请日：2004-02-03

Applicant: PENTAX Corporation

Inventor： Hiroshi Nomura ,  Yoshihiro Yamazaki ,  Isao Okuda

IPC: G02B007/02

CPC classification number: G02B7/10

Abstract: A cam mechanism of a lens barrel includes first and second ring members; cam grooves having similar cam diagrams formed on one of the first and second ring members, and cam followers formed on the other thereof. Two groove/follower groups positioned at different positions in a circumferential direction. The cam grooves of one of the two groove/follower groups intersect cam grooves of another of the two groove/follower groups, respectively. One of the following is satisfied: (a) a distance in the optical-axis direction between front and rear groove/follower sets of one of the two groove/follower groups is different from that between the front and rear groove/follower sets of another of the two groove/follower groups, and (b) a distance in the circumferential direction between two front groove/follower sets of the two groove/follower groups is different from that between two the rear groove/follower sets of the two groove/follower groups.

Abstract translation: 镜筒的凸轮机构包括第一和第二环构件; 凸轮槽具有形成在第一和第二环构件中的一个上的类似的凸轮图形，以及在另一个上形成的凸轮从动件。 位于圆周方向不同位置的两个槽/从动组。 两个槽/从动件组中的一个的凸轮槽分别与两个槽/从动组中的另一个的凸轮槽相交。 满足以下要求之一：（a）两个槽/从动组中的一个的前后槽/从动组之间的光轴方向上的距离不同于另一个的前后槽/从动组之间的距离 两个槽/从动组之间的两个前槽/随动件组之间的距离与两个槽/随动件组的后槽/随动件组之间的距离不同， 团体

公开(公告)号：US20040156123A1

公开(公告)日：2004-08-12

申请号：US10771298

申请日：2004-02-05

Applicant: PENTAX Corporation

Inventor： Hiroshi Nomura ,  Yoshihiro Yamazaki ,  Isao Okuda

IPC: G02B015/14

CPC classification number: G02B7/10

Abstract: A zoom lens barrel structure includes a first lens frame including an outer ring portion, an inner ring portion, a flange wall, and a first cam follower; a cam ring positioned between the outer and inner ring portions; a second lens frame having a second cam follower, positioned inside the inner ring portion; a first cam groove formed on an outer peripheral surface of the cam ring, the first cam follower being engaged in the first cam groove; a second cam groove formed on an inner peripheral surface of the cam ring so that the second cam follower engages in the second cam groove; a linear guide ring, positioned around the first lens frame; and a linear guide mechanism, provided between the inner ring portion of the first lens frame and the second lens frame, for guiding the second lens frame linearly along the optical axis.

Abstract translation: 变焦透镜镜筒结构包括：第一透镜框，包括外环部分，内环部分，凸缘壁和第一凸轮从动件; 定位在所述外环部分和所述内环部分之间的凸轮环; 具有第二凸轮从动件的第二透镜框架，位于所述内环部分的内部; 形成在所述凸轮环的外周面上的第一凸轮槽，所述第一凸轮从动件与所述第一凸轮槽接合; 第二凸轮槽，形成在所述凸轮环的内周面上，使得所述第二凸轮从动件接合在所述第二凸轮槽中; 定位在第一透镜框周围的线性导向环; 以及设置在第一透镜框架的内环部分和第二透镜框架之间的线性引导机构，用于沿着光轴线性地引导第二透镜框架。