公开(公告)号：US07083200B2

公开(公告)日：2006-08-01

申请号：US10650627

申请日：2003-08-28

申请人： Darcy Raymond Falconer

发明人： Darcy Raymond Falconer

IPC分类号： F16L27/00

CPC分类号： F16L39/06 ,  F16L27/087

摘要： A fluid rotary union (FRU) includes a first member and a second member. The first member includes a plurality of spaced longitudinally directed bores of different lengths, each of which terminate at an associated radially directed bore communicating the longitudinally directed bores with an outer surface of the first member. The second member includes a first housing, a plurality of longitudinally adjacent segments and a plurality of couplers positioned between adjacent ones of the segments and the first housing and an adjacent one of the segments. Each of the segments has at least one circumferential groove formed into an inner surface for providing fluid communication with one of the associated radially directed bores of the first member. A radially directed bore extends from each of the grooves in the segment to the outer surface of the segment.

摘要翻译： 流体旋转接头（FRU）包括第一构件和第二构件。 第一构件包括多个不同长度的间隔开的纵向定向的孔，每个孔终止于相关联的径向指向的孔，其将纵向定向的孔与第一构件的外表面连通。 第二构件包括第一壳体，多个纵向相邻区段和位于相邻区段和第一壳体之间的多个耦合器以及相邻的一个区段。 每个段具有形成为内表面的至少一个周向槽，用于与第一构件的相关联的径向指向的孔中的一个提供流体连通。 径向指向的孔从段中的每个槽延伸到段的外表面。

公开(公告)号：US07372230B2

公开(公告)日：2008-05-13

申请号：US11406038

申请日：2006-04-18

申请人： Robert Fisher McKay

发明人： Robert Fisher McKay

IPC分类号： G05B19/04

CPC分类号： G02B6/3604 ,  H04B10/801

摘要： An off-axis rotary joint (20) for selectively enabling communication of a signal (i.e., electrical and/or optical) between a housing (21) mounted for rotation about an axis (y-y) relative to a hollow shaft assembly (22) at all permissible relative angular displacements (e.g., 0°, 180°, 360°, 540°, 720°, etc.) between the housing and shaft assembly, broadly includes: a first conductor (23) having an first end mounted on the second member and having a second end mounted on the first member, the first conductor being adapted to convey a signal between its ends; a first motor (24) operatively arranged to selectively rotate the first conductor first end through a desired angular displacement relative to the second member; a second conductor (25) having an first end mounted on the second member and having a second end mounted on the first member, the second conductor being adapted to convey a signal between its ends; a second motor (26) operatively arranged to selectively rotate the second conductor second end through a desired angular displacement relative to the first second member; an encoder (28) for monitoring the angular displacement of the first member relative to the second member; a first divider/combiner (29) communicating with the second end of each of the conductors; a second divider/combiner (30); a first connector (31) mounted on the first member for selectively communicating the first and second divider/combiners through the first conductor; a second connector (32) mounted on the first member for selectively communicating the first and second divider/combiners through the second conductor; and a controller (33) for selectively operating the first and second motors and the first and second connectors; whereby a signal may be conveyed though the joint at all permissible angular displacements of the housing relative to the shaft assembly.

公开(公告)号：US20110299811A1

公开(公告)日：2011-12-08

申请号：US13202243

申请日：2009-02-25

申请人： Michael O'Brien ,  James Snow

发明人： Michael O'Brien ,  James Snow

IPC分类号： G02B6/40

CPC分类号： G02B6/3604 ,  G02B6/32 ,  G02B27/30

摘要： Fiber optic collimators are disclosed for use in fiber optic rotary joints (20) providing for improvement in insertion loss performance. One embodiment of the fiber optic collimator has a gradient-index rod lens (61) possessing a pitch of less than one-quarter. Improvement in insertion loss arises due to the increase in the effective focal length of the lens as the pitch is reduced, allowing the collimator to achieve a longer working distance. The increase in the effective focal length is accompanied by an increase in the back focal length of the lens, compared to the zero back focal length of the more typical quarter-pitch gradient-index rod lens. The increased back focal length can be filled by a cylindrical glass spacer (64), to which an optical fiber (68) is attached, resulting in a collimator with very similar form factor to the usual quarter-pitch gradient-index rod lens collimator. The increased back focal length can also be filled by a form of right-angle prism (71), to which an optical fiber is attached such that the fiber is oriented at 90 degrees to the optical axis of the lens useful for applications of pancake-style hybrid slip rings wherein the desired direction of fiber ingress to the rotary joint is perpendicular to the rotation axis of the rotary joint.

摘要翻译： 公开了用于光纤旋转接头（20）中的光纤准直器，用于提高插入损耗性能。 光纤准直器的一个实施例具有梯度指数棒状透镜（61），其具有小于四分之一的间距。 插入损耗的改善是由于间距减小导致透镜的有效焦距的增加而导致的，从而允许准直器实现更长的工作距离。 与更典型的四分之一间距梯度折射率棒透镜的零背焦距相比，有效焦距的增加伴随着透镜的后焦距的增加。 增加的后焦距可以由附接有光纤（68）的圆柱形玻璃间隔件（64）填充，导致与通常的四分之一间距梯度折射率棒状透镜准直器非常相似的形状因子的准直器。 增加的后焦距也可以由直角棱镜（71）的形式填充，光纤被附接到该直角棱镜（71），使得光纤相对于用于煎饼的镜片的透镜的光轴成90度定向， 其中纤维进入旋转接头的所需方向垂直于旋转接头的旋转轴线。

公开(公告)号：US20070019908A1

公开(公告)日：2007-01-25

申请号：US11187756

申请日：2005-07-22

申请人： Michael O'Brien ,  Stephen Smith ,  James Snow

发明人： Michael O'Brien ,  Stephen Smith ,  James Snow

IPC分类号： G02B7/182 ,  G02B6/34 ,  G02B6/26 ,  G02B6/42

CPC分类号： G02B6/3604

摘要： A multi-channel fiber optic rotary joint (FORJ) includes an external housing, a stationary collimator array, a rotating collimator array, an all-reflective de-rotating prism and a gear ratio. The external housing contains an internal cavity having a longitudinal rotation axis. The stationary collimator array is affixed to the external housing approximate a first end of the internal cavity. The rotating collimator array is rotatably attached to the external housing approximate a second end of the cavity. The second end of the cavity is opposite the first end of the cavity. The rotating collimator array is configured to rotate about the rotation axis. The de-rotating prism is located along the rotation axis within the internal cavity between the stationary collimator array and the rotating collimator array. The prism is retained in a prism housing, which is rotatably attached to the external housing and the prism housing is configured to rotate about the rotation axis.

摘要翻译： 多通道光纤旋转接头（FORJ）包括外壳，固定准直器阵列，旋转准直器阵列，全反射去旋转棱镜和齿轮比。 外壳包含具有纵向旋转轴线的内腔。 固定准直器阵列固定到外壳上，近似于内腔的第一端。 旋转准直器阵列可旋转地附接到外壳上，近似于腔的第二端。 空腔的第二端与空腔的第一端相对。 旋转准直器阵列被配置为围绕旋转轴线旋转。 去旋转棱镜沿固定准直器阵列和旋转准直器阵列之间的内腔内的旋转轴线定位。 棱镜被保持在棱镜壳体中，该棱镜壳体可旋转地附接到外部壳体，并且棱镜壳体构造成围绕旋转轴线旋转。