公开(公告)号：US20040090682A1

公开(公告)日：2004-05-13

申请号：US10695911

申请日：2003-10-30

Applicant: PENTAX Corporation

Inventor： Makoto Iikawa

IPC: G02B015/14

CPC classification number: G02B7/102

Abstract: A cam mechanism includes a cam ring including at least one cam rib which is formed on a peripheral surface of the cam ring to extend non-linearly; and a follower ring which is concentric with the cam ring, and includes at least one pair of cam followers which are formed on a peripheral surface of the follower ring to be positioned apart from each other in an axial direction of the follower ring to hold the cam rib between the pair of cam followers. Central positions of the pair of cam followers are offset from each other in a circumferential direction of the follower ring.

Abstract translation: 凸轮机构包括：凸轮环，包括至少一个凸轮肋，所述凸轮肋形成在所述凸轮环的外周表面上以非线性地延伸; 以及与所述凸轮环同心的从动环，并且包括至少一对凸轮从动件，所述至少一对凸轮从动件形成在所述从动环的圆周表面上，以在所述从动环的轴向方向上彼此分离，以保持所述 凸轮肋骨之间的一对凸轮从动件。 一对凸轮从动件的中心位置在从动环的圆周方向上彼此偏移。

公开(公告)号：US20040090681A1

公开(公告)日：2004-05-13

申请号：US10695909

申请日：2003-10-30

Applicant: PENTAX Corporation

Inventor： Makoto Iikawa ,  Masashi Takahashi

IPC: G02B015/14

CPC classification number: G02B7/102

Abstract: A cam mechanism includes a cam ring including a cam rib which is formed on a peripheral surface of the cam ring; and a follower ring which is concentric with the cam ring, the follower ring including a pair of cam followers which hold the cam rib between the pair of cam followers. Upon the cam ring and the follower ring being engaged with each other in an assembly process thereof, an inner cam follower of the pair of cam followers first approaches an end of the cam rib in a lengthwise direction thereof, and an outer cam follower of the pair of cam followers subsequently approaches the same end of the cam rib. A portion of the outer cam follower is extended outwards from a position of a peripheral surface of the inner cam follower in a circumferential direction of the follower ring.

Abstract translation: 凸轮机构包括凸轮环，凸轮环包括形成在凸轮环的外周表面上的凸轮肋; 以及与所述凸轮环同心的从动环，所述从动环包括将所述凸轮肋保持在所述一对凸轮从动件之间的一对凸轮从动件。 在凸轮环和从动环在其组装过程中彼此接合时，所述一对凸轮从动件的内凸轮从动件首先在凸轮轴的纵向方向上接近凸轮肋的端部，并且其外凸轮从动件 一对凸轮从动件随后接近凸轮肋的同一端。 外凸轮从动件的一部分在从动环的圆周方向上从内凸轮从动件的周面的位置向外延伸。

公开(公告)号：US20040061958A1

公开(公告)日：2004-04-01

申请号：US10667427

申请日：2003-09-23

Applicant: PENTAX Corporation

Inventor： Tomoaki Kobayashi ,  Makoto Iikawa

IPC: G02B005/08 ,  G02B017/00 ,  G02B007/02

CPC classification number: G02B7/10

Abstract: A lens barrel includes a linear guide ring; a linearly movable ring which is provided inside the linear guide ring and has a cam on an outer circumferential surface; and a hand-operated rotating ring, provided outside the linear guide ring, which is capable of rotating in a circumferential direction and is incapable of rotating in an optical axis direction, with respect to the linear guide ring and which has a first penetrate groove. The linear guide ring, the linearly movable ring and the hand-operated rotating ring are provided concentrically to each other. A rotation motion of the hand-operated rotating ring with respect to the linear guide ring causes the linearly movable ring to move linearly along the optical axis direction, via the linear guide ring. The linear guide ring has a second penetrate groove penetrated in a radial direction. A projection member, which is to be engaged with the cam provided on the linear movable ring, via the second penetrate groove of the linear guide ring, is inserted from an outside of the hand-operated rotating ring.

Abstract translation: 镜筒包括线性导向环; 线性移动环，其设置在所述线性导向环的内部，并且在外周面上具有凸轮; 以及手轮旋转环，其设置在直线导向环的外侧，该旋转环能够沿圆周方向旋转并且不能相对于线性导向环在光轴方向上旋转并且具有第一穿透槽。 线性导向环，直线移动环和手动旋转环彼此同心地设置。 手动旋转环相对于线性导向环的旋转运动使得线性可移动环经由线性导向环沿光轴方向线性移动。 线性导向环具有沿径向贯通的第二穿透槽。 通过线性导向环的第二贯穿槽，与被设置在线性可动环上的凸轮接合的突起构件从手动旋转环的外部插入。

公开(公告)号：US20040136777A1

公开(公告)日：2004-07-15

申请号：US10751532

申请日：2004-01-06

Applicant: PENTAX Corporation

Inventor： Makoto Iikawa ,  Masashi Takahashi

IPC: B25G003/16

CPC classification number: G03B17/00 ,  Y10T403/7005 ,  Y10T403/7007 ,  Y10T403/7015

Abstract: A bayonet coupling including an annular groove and bayonet lugs on an inner ring-shaped member and an outer ring-shaped member; and insertion openings formed on either the inner ring-shaped member or the outer ring-shaped member which includes the annular groove. The bayonet lugs includes first bayonet lugs associated with the insertion openings to be insertable into the annular groove through the insertion openings, and a second bayonet lug for which no associated insertion opening is formed. The insertion openings, the first bayonet lugs and the second bayonet lug are shaped so that the second bayonet lug is insertable into the annular groove with axes of the outer and inner ring-shaped members being inclined to each other, and so that the first bayonet lugs are insertable into the annular groove through the insertion openings, respectively, after the second bayonet lug is inserted into the annular groove.

Abstract translation: 一种卡口式联轴节，其包括在内环形构件和外环形构件上的环形槽和卡​​口凸耳; 以及形成在包括环形槽的内环形构件或外环形构件的任一个上的插入开口。 卡口凸耳包括与插入开口相关联的第一卡口凸耳，以便通过插入开口可插入到环形凹槽中，以及第二卡口凸耳，其中没有形成相关联的插入开口。 所述插入开口，所述第一卡口凸耳和所述第二卡口凸耳被成形为使得所述第二卡口凸耳可插入到所述环形凹槽中，所述外环和内环构件的轴线彼此倾斜，并且使得所述第一卡口 在第二卡口凸耳插入环形凹槽中之后，凸耳分别通过插入开口插入到环形槽中。

公开(公告)号：US20040136090A1

公开(公告)日：2004-07-15

申请号：US10745508

申请日：2003-12-29

Applicant: PENTAX Corporation

Inventor： Makoto Iikawa ,  Masashi Takahashi

IPC: G02B015/14

CPC classification number: G02B7/02 ,  G02B7/025

Abstract: A hot crimping structure for fixing at least one lens element to a lens frame made of synthetic resin, the lens element being accommodated in a lens holder opening of the lens frame, a portion of the lens frame being crimped by heat to serve as a crimped edge which lies on a surface of the lens element adjacent to a rim of the lens element. The lens frame includes an outward expansion surface which extends outwards from a close vicinity of the rim of the lens element. A hot crimping tool is brought into contact with the outward expansion surface to form a recess on the outward expansion surface by heat, to thereby produce the crimped edge by movement of melting synthetic resin which is melted due to the formation of the recess.

Abstract translation: 一种热压接结构，用于将至少一个透镜元件固定到由合成树脂制成的透镜框架上，透镜元件容纳在透镜框架的透镜保持器开口中，透镜框架的一部分被加热压接以用作卷边 位于透镜元件的与透镜元件的边缘相邻的表面上的边缘。 透镜框架包括从透镜元件的边缘附近向外延伸的向外的膨胀表面。 使热压接工具与向外的膨胀表面接触，通过加热在外部膨胀表面上形成凹部，从而通过由于形成凹部而熔化的熔融合成树脂的移动而产生卷曲边缘。

公开(公告)号：US20040012862A1

公开(公告)日：2004-01-22

申请号：US10619564

申请日：2003-07-16

Applicant: PENTAX Corporation

Inventor： Makoto Iikawa

IPC: G02B007/02

CPC classification number: G02B27/0068 ,  G02B7/04 ,  G02B13/20

Abstract: A soft focus lens barrel includes a stationary barrel; a distance operation ring, a soft focus operation ring, and an image surface operation ring, supported by the stationary barrel; a focus guide mechanism which varies a focal position of first through fourth lens groups by moving first and second lens group frames in the optical axis direction without varying the distance therebetween via rotation of the distance operation ring; a spherical aberration guide mechanism which varies spherical aberrations of the first through fourth lens groups by moving third and fourth lens group frames in the optical axis direction via rotation of the soft focus operation ring; and a field curvature guide mechanism which varies curvature of field produced by the first through fourth lens groups by solely moving the first lens group frame in the optical axis direction via rotation of the image surface operation ring.