公开(公告)号：WO1995021392A1

公开(公告)日：1995-08-10

申请号：PCT/US1995001317

申请日：1995-02-01

Applicant: COGENT LIGHT TECHNOLOGIES, INC.

Inventor： COGENT LIGHT TECHNOLOGIES, INC. ,  BAKER, Glenn, S. ,  BRENNER, Douglas, M. ,  PICCIONI, Robert, L.

IPC: G02B06/10

CPC classification number: G02B6/4206 ,  G02B6/4298 ,  G02B19/0023 ,  G02B19/0028 ,  G02B19/0047

Abstract: The present invention comprises a system for condensing and collecting electromagnetic radiation having a primary reflector (P, M1) disposed on one side of an electromagnetic radiation source and a target (T) disposed on the opposite side of the source (S). The primary reflector (P, M1) includes a concave reflecting surface portion, which preferably forms the entire surface of the reflector. The concave surface portion of the primary reflector (P, M1), which is preferably of a substantially toroidal shape, defines an optical axis and a primary center of curvature disposed along the optical axis (z). The source (S) of electromagnetic radiation is located approximately on the optical axis (z) but axially offset a first distance from the center of curvature in a direction toward the concave surface portion. The target (T) i.e. a single core fiber optic (f) or a fiber optic bundle, is located approximately on the optical axis (z) but axially offset a second distance from the center of curvature.

Abstract translation: 本发明包括一种用于冷凝和收集电磁辐射的系统，其具有设置在电磁辐射源一侧的主反射器（P，M1）和设置在源（S）的相对侧上的目标（T）。 主反射器（P，M1）包括凹面反射面部分，其优选地形成反射器的整个表面。 主反射器（P，M1）的凹面部优选为大致环形形状，限定了沿着光轴（z）设置的光轴和主要曲率中心。 电磁辐射源（S）大致位于光轴（z）上，但在朝向凹面部分的方向上轴向偏离曲率中心的第一距离。 目标（T）即单芯光纤（f）或光纤束大致位于光轴（z）上，但轴向偏离距曲率中心的第二距离。

公开(公告)号：WO1998005987A1

公开(公告)日：1998-02-12

申请号：PCT/US1997013357

申请日：1997-07-30

Applicant: COGENT LIGHT TECHNOLOGIES, INC.

Inventor： COGENT LIGHT TECHNOLOGIES, INC. ,  LI, Kenneth, K. ,  BRENNER, Douglas, M. ,  CHEN, Chingfa

IPC: G02B06/28

CPC classification number: G02B6/2848 ,  A61B90/30 ,  A61B90/35 ,  A61B2090/306 ,  G02B6/0006 ,  G02B6/32

Abstract: The optical coupler couples light output from the single fiber optic into the fiber optic bundle while preserving the numerical aperture of the beam output from the single fiber optic. The optical coupler also preserves any uniformity in the beam output from the single fiber optic. The optical coupler includes a collimating device such as a magnifiying lens and a diffusing device such as a hemispherical lens array. The collimating device collimates the beam output from the single fiber optic into a parallel beam having a diameter substantially equal to a diameter of the fiber optic bundle. The diffuser device diverges the collimated beam for input into the fiber optic bundle by an amount sufficient to reproduce the numerical aperture of light output from the single fiber optic. A wide variety of optical diffuser devices are disclosed, including spherical convex lens arrays, cylindrical lens arrays, pyramidal lens arrays and fresnel lenses. In one exemplary embodiment, the optical coupler is employed within a medical illumination system which transmits light from a high-intensity light source to a medical device such as a surgical headlamp, or medical endoscope or boroscope.

Abstract translation: 光耦合器将从单个光纤输出的光耦合到光纤束中，同时保持从单个光纤输出的光束的数值孔​​径。 光耦合器还保持来自单个光纤的光束输出中的任何均匀性。 光耦合器包括诸如放大透镜的准直装置和诸如半球形透镜阵列的漫射装置。 准直装置使从单个光纤的光束输出的光束准直成直径基本上等于光纤束的直径的平行光束。 扩散器装置将准直的光束发散到光纤束中以足以再现从单个光纤输出的光的数值孔径的量。 公开了各种各样的光学扩散器件，包括球形凸透镜阵列，柱面透镜阵列，锥体透镜阵列和菲涅尔透镜。 在一个示例性实施例中，光耦合器被应用于医疗照明系统中，该系统将来自高强度光源的光透射到医疗装置，例如外科前照灯或医疗内窥镜或硼筒。

公开(公告)号：WO1997046902A1

公开(公告)日：1997-12-11

申请号：PCT/US1997008191

申请日：1997-05-15

Applicant: COGENT LIGHT TECHNOLOGIES, INC.

Inventor： COGENT LIGHT TECHNOLOGIES, INC. ,  LI, Kenneth, K. ,  SMITH, Wayne ,  DAVIES, Richard, B. ,  BRENNER, Douglas, M.

IPC: G02B06/42

CPC classification number: G02B6/4298 ,  A61B2090/306 ,  G02B6/0006 ,  G02B6/381 ,  G02B6/3849

Abstract: A surgical tool (20) with surgical field illuminator includes a light-conveying fiber optic member (10) having a body portion (12), a light-receiving end (14) optically connectable to a source of light (18), and a light-delivering end (16). A surgical tool (20) can be attached to, or surround, part of the body portion (12) of the fiber optic member (10), and the surgical tool (20) can be connected to the body portion (12) of the fiber optic member (10). A light-transmitting member (32) is positioned adjacent the light-delivering end (16) of the fiber optic member (10). A light-delivering port (34) in the surgical tool (20) can be provided. When the light-receiving end (14) of the fiber optic member (10) is optically connected to the source of light (18), light is transmitted through the fiber optic member (10) to the light-delivering end (16) of the fiber optic member (10), and through the light-transmitting member (32) at a light density, to illuminate a surgical region adjacent the light-transmitting member (32).

Abstract translation: 具有手术场照明器的手术工具（20）包括具有主体部分（12）的光输送光纤构件（10），可光学地连接到光源（18）的光接收端（14），以及 光输送端（16）。 手术工具（20）可以附接到光纤构件（10）的主体部分（12）的一部分或围绕其中，并且手术工具（20）可以连接到光纤构件（10）的主体部分（12） 光纤部件（10）。 透光构件（32）邻近光纤构件（10）的光输送端（16）定位。 可以提供手术工具（20）中的光输送口（34）。 当光纤构件（10）的光接收端（14）光学连接到光源（18）时，光通过光纤构件（10）传输到光输送端（16） 光纤构件（10），并且以光密度通过透光构件（32）以照射邻近透光构件（32）的手术区域。

公开(公告)号：WO1998022845A1

公开(公告)日：1998-05-28

申请号：PCT/US1997019645

申请日：1997-10-28

Applicant: COGENT LIGHT TECHNOLOGIES, INC.

Inventor： COGENT LIGHT TECHNOLOGIES, INC. ,  CHINGFA, Chen ,  LI, Kenneth, K. ,  BRENNER, Douglas, M.

IPC: G02B27/09

CPC classification number: G02B27/0927 ,  G02B6/262 ,  G02B6/2808 ,  G02B6/4298 ,  G02B23/2469 ,  G02B27/09 ,  G02B27/0994

Abstract: A device which adjusts the angle of illumination of light exiting a fiber optic light guide. A first light guide (51) has a first numerical aperture for emitting light from a light source, and light exiting the first light guide has a first light intensity angular profile. A second light guide (25) has a second numerical aperture for receiving the light from the first light guide, and light exiting the second light guide has a second light intensity angular profile. Light from the first light guide is dispersed by a device including at least a first surface interposed between the first light guide and the second light guide such that light from the first light guide having the first light intensity profile irradiates the first surface and the angular intensity profile of the light irradiating the second light guide is modified so as to cause the second light intensity angular profile to be modified. The first light guide preferably has a single fiber, and the second light guide preferably has a fiber bundle. The dispersion is preferably to be effected with a GRIN lens (10) and a fiber bundle having an angled endface (22), or with a GRIN lens (10), a fixed fiber bundle having an angled endface and a rotatable fiber bundle having an angled endface.

Abstract translation: 调节离开光纤光导的光的照明角度的装置。 第一光导（51）具有用于从光源发射光的第一数值孔径，并且离开第一光导的光具有第一光强度角轮廓。 第二光导（25）具有用于接收来自第一光导的光的第二数值孔径，并且离开第二光导的光具有第二光强度角分布。 来自第一导光体的光由包括至少第一表面的装置分散，该第一表面介于第一导光体和第二导光体之间，使得来自具有第一光强度分布的第一光导的光照射第一表面和角强度 对照射第二导光体的光的轮廓进行修改，以便改变第二光强度角轮廓。 第一导光体优选具有单根纤维，第二导光体优选具有纤维束。 分散体优选用GRIN透镜（10）和具有倾斜端面（22）或具有GRIN透镜（10）的纤维束，具有成角度端面的固定纤维束和可旋转纤维束进行，所述纤维束具有 倾斜的端面。

公开(公告)号：WO1998014812A3

公开(公告)日：1998-04-09

申请号：PCT/US1997016796

申请日：1997-09-18

Applicant: COGENT LIGHT TECHNOLOGIES, INC.

Inventor： COGENT LIGHT TECHNOLOGIES, INC. ,  CHEN, Chingfa ,  PAULINO, Fred, P. ,  LI, Kenneth, K. ,  BRENNER, Douglas, M.

IPC: G02B06/40

公开(公告)号：WO1995004240A1

公开(公告)日：1995-02-09

申请号：PCT/US1994007630

申请日：1994-07-07

Applicant: COGENT LIGHT TECHNOLOGIES, INC.

Inventor： COGENT LIGHT TECHNOLOGIES, INC. ,  STROBL, Karlheinz ,  BAKER, Glenn, S. ,  BRENNER, Douglas, M. ,  PICCIONI, Robert, L.

IPC: F21V07/08

CPC classification number: G02B6/4298 ,  F21V7/08 ,  G02B6/0006

Abstract: An off-axis optical system for collecting and condensing electromagnetic radiation utilizes an ellipsoidal reflector configured to minimize the effects of magnification and optical aberrations. An ellipsoidal reflector (M1, P) having primary and secondary focal points (F1, F2) along the major axis (8) is illuminated by a light source (S) and subtended by an acceptance cone (16) of the target (T). In one embodiment, a single ellipsoidal reflector is configured with its major axis non-coincident with its geometric optical axis (12) and with the optical axis (14) of the target at an angle greater than zero degrees so as to reduce substantially the distance at which a focused image is formed and to achieve an average magnification near unity thereby maintaining the brightness of the source at the target. The radiant flux at the location of the target is increased by incorporating a retro-reflector (M2) of toroidal or spherical design.

Abstract translation: 用于收集和聚集电磁辐射的离轴光学系统利用配置成使放大率和光学像差的影响最小化的椭球反射器。 具有沿着长轴（8）的主要焦点（F1，F2）的椭圆形反射体（M1，P）被光源（S）照射并且被目标（T）的接收锥体（16）对向， 。 在一个实施例中，单个椭球反射器被构造成其长轴与其几何光轴（12）不一致，并且与目标的光轴（14）成大于零度的角度，以便基本上减小距离 在其上形成聚焦图像并且实现近似一致的平均放大率，从而将源的亮度保持在目标上。 通过结合环形或球形设计的后向反射器（M2）来增加目标位置处的辐射通量。