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：WO1997005510A1

公开(公告)日：1997-02-13

申请号：PCT/US1996012502

申请日：1996-07-31

Applicant: COGENT LIGHT TECHNOLOGIES, INC.

Inventor： COGENT LIGHT TECHNOLOGIES, INC. ,  HOPLER, Mark, D. ,  EMPEY, Glenn, P. ,  GOURGOULIATOS, Zafirios

IPC: G02B06/28

CPC classification number: G02B6/4298 ,  G02B6/262 ,  G02B6/2808 ,  G02B6/2848

Abstract: A gradient index (GRIN) lens (16) couples light from a single fiber (12) optic into a fiber bundle (14) or directly into the input port (104) of an illumination device, such as a medical illumination device. The single fiber (12) optic provides a high intensity beam of light having a high NA. An entry face (18) of the GRIN lens (16) is positioned adjacent to an exit aperture of the fiber (12) within the near field (28) of the fiber and thereby receives a beam having a substantially uniform cross section, rather than a Gaussian cross section as would occur with the GRIN lens (16) positioned in the far field of the fiber (12). An exit face of the GRIN lens (100) is positioned adjacent to the fiber bundle or input port (104) of the illumination device (106). As such, the GRIN lens effectively images the exit aperture of the fiber (102) of the input aperture of the fiber bundle as input port (104). The optical characteristics of the GRIN lens (100), including its length and radial variation in index of refraction, are selected to reduce the NA of light output from the fiber (102) to a value appropriate for use with the illumination device (106). An optical coupler employing the GRIN lens (100) is described as well as an entire optical system including a source of light (108), an off-axis coupler (110) for coupling light into the fiber (102), a gradient index lens (100), and an endoscope (106). A mechanical housing (105) for holding the single fiber (101) and GRIN lens (160) and for facilitating connection to a fiber bundle or input port (106) is also described.

Abstract translation: 梯度折射率（GRIN）透镜（16）将来自单个光纤（12）光纤的光耦合到光纤束（14）中或直接耦合到诸如医疗照明装置的照明装置的输入端口（104）中。 单纤维（12）光学器件提供具有高NA的高强度光束。 GRIN透镜（16）的入射面（18）被定位成邻近光纤的近场（28）内的光纤（12）的出口孔，从而接收具有基本上均匀横截面的光束，而不是 如在GRIN透镜（16）位于光纤（12）的远场中将发生的高斯横截面。 GRIN透镜（100）的出射面位于照明装置（106）的纤维束或输入端口（104）附近。 这样，GRIN透镜有效地将纤维束的输入孔的光纤（102）的出射孔作为输入端口（104）成像。 选择GRIN透镜（100）的光学特性，包括其折射率的长度和径向变化，以将从光纤（102）输出的光的NA减小到适合于与照明装置（106）一起使用的值， 。 描述了使用GRIN透镜（100）的光耦合器以及包括光源（108），用于将光耦合到光纤（102）中的偏轴耦合器（110））的整个光学系统，梯度折射率透镜 （100）和内窥镜（106）。 还描述了用于保持单个光纤（101）和GRIN透镜（160）并且用于便于连接到光纤束或输入端口（106）的机械壳体（105）。

公开(公告)号：WO1996041652A1

公开(公告)日：1996-12-27

申请号：PCT/US1996010238

申请日：1996-06-11

Applicant: COGENT LIGHT TECHNOLOGIES, INC.

Inventor： COGENT LIGHT TECHNOLOGIES, INC. ,  HEYMAN, Arnold, M.

IPC: A61M25/00

CPC classification number: A61M27/008 ,  A61B1/01 ,  A61B1/07 ,  A61M25/00

Abstract: A ureteral catheter device composed of a catheter made of light transmitting, (transparent) material, the catheter having a distal end and a proximal end, and being formed to have a drainage lumen that extends between, and is open at the distal and proximal ends, and a second lumen that extends substantially parallel to the drainage lumen; and a single fiber optic filament housed in the second lumen, the fiber optic filament being provided to conduct light in a manner to illuminate the catheter.

Abstract translation: 输尿管导管装置由透光（透明）材料制成的导管组成，该导管具有远端和近端，并且形成为具有在远端和近端之间延伸且在远端和近端处开口的排液腔 以及基本上平行于所述排液腔延伸的第二腔; 以及容纳在第二内腔中的单个光纤丝，所述光纤丝被提供以以照亮导管的方式传导光。

公开(公告)号：WO2002075382A1

公开(公告)日：2002-09-26

申请号：PCT/US2002/004687

申请日：2002-02-19

Applicant: COGENT LIGHT TECHNOLOGIES, INC. ,  LI, Kenneth, K.

Inventor： LI, Kenneth, K.

IPC: G02B6/00

CPC classification number: H04N9/3152 ,  F21V7/0025 ,  G02B6/0006 ,  G02B6/4298

Abstract: An illumination system using filament lamps including a filament lamp (102), a reflector (104) having a first and second focal points, the filament lamp (102) disposed proximate to the first focal point (106) of the reflector (104) to emit rays of electromagnetic radiation that reflect from the reflector and converge substantially at the second focal point (108), wherein a portion of the electromagnetic radiation emitted by the filament lamp (102) impinges directly on the reflector (104) and a portion of the electromagnetic radiation does not impinge directly on the reflector and wherein the system further includes an additional reflector constructed and arranged to reflect at least part of the portion of the electromagnetic radiation that does not impinge directly on the reflector toward the reflector through the first focal point (106) of the reflector (104).

Abstract translation: 一种照明系统，其使用包括灯丝灯（102），具有第一和第二焦点的反射器（104）的灯丝灯，所述灯丝灯（102）靠近所述反射器（104）的第一焦点（106）设置到 发射从反射器反射并基本上聚集在第二焦点（108）处的电磁辐射射线，其中由灯丝灯（102）发射的电磁辐射的一部分直接照射在反射器（104）上，并且部分 电磁辐射不直接照射在反射器上，并且其中该系统还包括附加的反射器，该反射器被构造和布置成将至少部分电磁辐射部分反射不通过第一焦点反射到反射器上 106）。

公开(公告)号：WO2002017000A3

公开(公告)日：2002-02-28

申请号：PCT/US2001/023758

申请日：2001-07-30

Applicant: COGENT LIGHT TECHNOLOGIES, INC. ,  LI, Kenneth, K.

Inventor： LI, Kenneth, K.

IPC: G02B27/28

Abstract: A waveguide polarization recovery system both polarizes the input light energy for use with an LCD imager and converts the polarity of unusable light energy to add to the illumination of the LCD imager. The compact polarization recovery waveguide system generally includes: (1) an input waveguide that provides non-polarized light energy into the system; (2) an output waveguide that receives polarized light energy from the system; (3) a polarized beam splitter that received the light energy from the input waveguide and transmits lights energy of a first polarization type and reflects light energy of a second polarization type, and (4) a wave plate that modifies the polarization of either the transmitted or reflected light energy. The polarization recovery system also generally includes one or more mirrors that are positioned as need to direct the transmitted and the reflected light energy to the output waveguide.

公开(公告)号：WO1995035517A1

公开(公告)日：1995-12-28

申请号：PCT/US1995007573

申请日：1995-06-14

Applicant: COGENT LIGHT TECHNOLOGIES, INC.

Inventor： COGENT LIGHT TECHNOLOGIES, INC. ,  BAKER, Glenn, S. ,  CHANG, David, D.

IPC: G02B06/36

CPC classification number: G02B6/4296 ,  G02B6/02033

Abstract: The present invention provides a fiber optic coupling apparatus for coupling light from a high power light source into a fiber optic (2) while preventing thermal damage to the fiber optic at the fiber-to-light source coupling. The light source comprises a housing having a fiber input structure with inner surfaces defining a through-hole (29) for receiving the fiber optic (2). The fiber input structure has outer surfaces (63) which define a substantially conical profile of the structure that extends within the housing such that an axis of symmetry of the fiber input structure is substantially coincident with the light input to the fiber optic (2). The fiber input structure is further made from a high heat conductivity material and has a reflective coating on an input end face for reflecting light that is outside the acceptance angle of the fiber optic (2), but incident upon the fiber input structure.

Abstract translation: 本发明提供了一种用于将来自大功率光源的光耦合到光纤（2）中的光纤耦合装置，同时防止在光纤到光源耦合处对光纤的热损伤。 光源包括具有光纤输入结构的壳体，其内表面限定用于接收光纤（2）的通孔（29）。 光纤输入结构具有外表面（63），外表面（63）限定了在壳体内延伸的结构的基本圆锥形轮廓，使得光纤输入结构的对称轴线基本上与输入到光纤（2）的光线重合。 纤维输入结构进一步由高导热性材料制成，并且在输入端面上具有反射涂层，用于反射在光纤（2）的接受角度之外但是入射到光纤输入结构上的光。

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：WO1994003759A3

公开(公告)日：1994-02-17

申请号：PCT/US1993007124

申请日：1993-07-29

Applicant: COGENT LIGHT TECHNOLOGIES, INC.

Inventor： COGENT LIGHT TECHNOLOGIES, INC. ,  BAKER, Glenn ,  STROBL, Karlheinz ,  BRENNER, Douglas ,  FISCHER, Robert ,  PICCIONI, Robert ,  THOMAS, Michael

IPC: F21V07/00

公开(公告)号：WO2002063390A2

公开(公告)日：2002-08-15

申请号：PCT/US2002/002869

申请日：2002-02-04

Applicant: COGENT LIGHT TECHNOLOGIES, INC. ,  LI, Kenneth, K.

Inventor： LI, Kenneth, K.

IPC: G03B

CPC classification number: G02B27/0994 ,  G02B6/0006 ,  G02B27/0927 ,  G02B27/285 ,  G03B21/14 ,  G03B21/2073 ,  G03B21/208 ,  G03B21/28 ,  Y10S385/901

Abstract: An illumination engine for a projection display using a TLP including a reflector having a first focal point and second focal points. A source of electro-magnetic radiation disposed proximate to the first focal point of the reflector emits rays of radiation that reflect from the reflector toward the second focal point. A TLP collects and transmits substantially all of the radiation converged at the second focal point, adjusting the numerical aperture of the radiation, but curving the surface formed by the images of the radiation. A SLP or a lens collects and transmits substantially all of the radiation transmitted by the TLP, flattening the surface formed by the images of the radiation. A condenser lens collects and transmits substantially all of the radiation transmitted by the contoured delay element to a PBS and a projection system.

Abstract translation: 一种用于使用包括具有第一和第二焦点的反射器的锥形光管（718）的投影显示器的照明引擎。 靠近反射体的第一焦点设置的电磁辐射源发射从反射器朝向第二焦点反射的射线。 锥形光管（718）收集并透射在第二焦点（722）处会聚的基本上所有的辐射，调节辐射的数值孔径，但是弯曲由辐射的图像形成的表面。 直的光管（724）或透镜收集和透射由锥形光管传播的基本上全部的辐射，使由辐射的图像形成的表面变平。 聚光透镜（707）将由轮廓延迟元件透射的所有辐射收集并透射到偏振分束器（740）和投影系统（738）。

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。