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1. 发明公开

EP2008130A2 PROCESS FOR MAKING AN OPTICAL FILM 审中-公开
标题翻译：方法制造光学薄膜
公开(公告)号：EP2008130A2
公开(公告)日：2008-12-31
申请号：EP07759556.9
申请日：2007-03-28
申请人： 3M Innovative Properties Company
发明人： MERRILL, William W., , OUDERKIRK, Andrew J., , JOHNSON, Matthew B., , HEBRINK, Timothy J., , DENKER, Martin E., , O'NEILL, Mark B.,
IPC分类号： G02B5/30 , G02F1/13363
CPC分类号： G02B5/3008 , B29C55/023 , B29C55/146 , B29C55/165 , B29K2067/00 , B29K2995/0032 , G02B5/3083
摘要： Exemplary methods include includes providing a film comprising at least one polymeric material; widening the film under a first set of processing conditions in a first draw step along the crossweb direction such that in-plane birefringence, if any, created in the film is low; and drawing the film in a second draw step along a downweb direction under a second set of processing conditions, wherein the second set of processing conditions creates in-plane birefringence in at least one polymeric material. Exemplary roll of film includes an oriented optical film characterized by an effective orientation axis. The oriented optical film comprises only one birefringent polymeric material, at least one birefringent material and at least one isotropic material, or a first birefringent material and a second birefringent material, the birefringent materials characterized by effective orientation axes along the MD. The optical film has a width of greater than 0.3 m and a length a length greater than 10 m.

2. 发明公开

EP1588428A1 PHOSPHOR BASED LIGHT SOURCE HAVING A FLEXIBLE SHORT PASS REFLECTOR 审中-公开
标题翻译：具有灵活的短通反射荧光粉基光源
公开(公告)号：EP1588428A1
公开(公告)日：2005-10-26
申请号：EP04705608.0
申请日：2004-01-27
申请人： 3M Innovative Properties Company
发明人： OUDERKIRK, Andrew J., , WHEATLEY, John A., , WEBER, Michael F.,
IPC分类号： H01L33/00
CPC分类号： C09K11/54 , C09K11/7774 , H01L33/507 , H01L33/54 , H01L2224/48091 , H01L2224/48247 , H01L2924/181 , H01L2924/00012 , H01L2924/00014
摘要： A light source includes an LED that emits excitation light, a first flexible multilayer reflector that reflects at least a portion of visible light and transmits the excitation light, and a layer of phosphor material adjacent the flexible multilayer reflector. The phosphor material emits visible light when illuminated with the excitation light.

3. 发明公开

EP2521937A2 COMPACT OPTICAL INTEGRATOR 审中-公开
标题翻译：紧凑型光学积分器
公开(公告)号：EP2521937A2
公开(公告)日：2012-11-14
申请号：EP11732023.4
申请日：2011-01-03
申请人： 3M Innovative Properties Company
发明人： OUDERKIRK, Andrew J., , YUN, Zhisheng, , TAN, Kim, Leong,
IPC分类号： G02B27/10
CPC分类号： G02B27/283 , G02B27/0927 , G02B27/0977 , G02B2207/117
摘要： Generally, the present disclosure describes a compact optical integrator that provides an increased path length for a beam of light in a compact projection system. The increased path length can improve the uniformity of the light passing through the compact projection system, with a minimal increase in the size of the system. The light can be homogenized by mixing light entering the integrator from different regions of the input area. The compact optical integrator can be positioned in the optical path between a light source and a spatial light modulator, such as a liquid crystal display (LCD) or a digital micro-mirror (DMM) array.

4. 发明公开

EP1853945A2 POLYMERIC PHOTONIC CRYSTALS WITH CO-CONTINUOUS PHASES 审中-公开
标题翻译：有聚合物共连续相光子晶体
公开(公告)号：EP1853945A2
公开(公告)日：2007-11-14
申请号：EP06735102.3
申请日：2006-02-15
申请人： 3M Innovative Properties Company
发明人： OUDERKIRK, Andrew J., , BENSON, Olester Jr. , BROTT, Robert L., , FLEMING, Patrick R., , LEATHERDALE, Catherine A., , NEAVIN, Terence D., , NORTH, Diane
IPC分类号： G02B1/04 , G02B6/122
CPC分类号： G02B5/3008 , B82Y20/00 , G02B1/04 , G02B5/02 , G02B6/1225
摘要： An optical element is formed by co-extruding to have an arrangement of polymer scattering fibers within a polymer matrix. The scattering fibers lie substantially parallel to a first axis. The scattering fibers are arranged at positions across the cross-section of the polymer matrix to scatter light transversely incident on the optical element in a direction substantially orthogonal to the first axis. The positions of the scattering fibers across the cross-section of the optical element may be selected so as to form a two-dimensional photonic crystal structure for light transversely incident on the optical element.

5. 发明公开

EP1695130A1 DISPLAY INCLUDING A SOLID STATE LIGHT DEVICE AND METHOD USING SAME 审中-公开
标题翻译： WITH A固态发光器件及其使用方法显示其
公开(公告)号：EP1695130A1
公开(公告)日：2006-08-30
申请号：EP04812060.4
申请日：2004-11-24
申请人： 3M Innovative Properties Company
发明人： OUDERKIRK, Andrew J., , MEIS, Michael A.,
IPC分类号： G02B6/06
CPC分类号： H04N9/3108 , A61C19/004 , G02B6/0006 , G02B6/06 , G02B6/4249 , G02B6/4298 , H04N5/7416 , H04N9/315
摘要： A display (800) includes a solid state light device (810) and a spatial light modulator (830) in optical communication with the solid state light device. The solid state light device includes an array of solid state radiation sources (812) to generate radiation, where each solid state radiation source includes a controllable radiation output. The solid state light device further includes an array of optical concentrators (814), where each optical concentrator receives radiation from a corresponding one of the array of solid state radiation sources. The solid state light device further includes a plurality of optical fibers (816), where each of the plurality of optical fibers includes an input end (818) that receives concentrated radiation from a corresponding optical concentrator. The spatial light modulator includes a plurality of controllable elements operable to modulate light from the solid state light device.

6. 发明授权

EP2162785B1 DESIGN PARAMETERS FOR THIN HOLLOW CAVITY BACKLIGHTS OF THE LIGHT-RECYCLING TYPE 失效
标题翻译：光再生型薄型空腔背光源的设计参数
公开(公告)号：EP2162785B1
公开(公告)日：2018-03-07
申请号：EP08755853.2
申请日：2008-05-19
申请人： 3M Innovative Properties Company
发明人： NEVITT, Timothy J. , HEBRINK, Timothy J. , WEBER, Michael F. , BIERNATH, Rolf W. , FREIER, David, G. , WHEATLEY, John A. , OUDERKIRK, Andrew J., , HOYLE, Charles D. , DERKS, Kristopher J.
IPC分类号： G02F1/13357 , G02B6/00 , F21V8/00
CPC分类号： F21V7/04 , G02B6/0055 , G02B6/0056 , G02B6/0068 , G02B6/0096 , G02F1/133603 , G02F1/133605 , G02F1/13362
摘要： A backlight unit (10), for a display or for general Iighting purposes, has a hollow cavity (16) instead of a solid Iight guide. One or more Iight sources (24a-c), e.g. LEDs, emit Iight into the cavity, which is formed by a front (12) and a back reflector (14). The backlight has either a directly-lit or an edge-lit configuration; it can have a Iarge area and still be thin; it consists of fewer components than conventional devices and its design permits the reuse of Iight reflected internally (Iight recycling). The unit emits Iight of a predefined polarisation and its viewing angle properties can be tailored. Light is uniformly distributed within the guide and the guide's output (20b, 20d) is substantially collimated. Such backlights occupy a specific region in a parameter space defined by two parameters: first, the ratio of the output emission area to the total source emission area should lie in the range from 0.0001 to 0.1 ; and second, the ratio of SEP (an average plan view source separation, which is a measure of the average spacing of the Iight sources in the plane of the unit) to the height of the cavity (H) should be in the range from 3 to 10. There is also a discussion of the required number of light sources N, their arrangement near the periphery of the cavity, as well as the shape and size of the output emission area. The backlight exhibits a minimum brightness uniformity (VESA) value, even when a subset of M adjacent sources is switched off (where M is at least 0.1 N or M>2 or both).

7. 发明公开

EP2572231A2 FLY EYE INTEGRATOR POLARIZATION CONVERTER 审中-公开
标题翻译：偏光转换器用于一个面眼积分
公开(公告)号：EP2572231A2
公开(公告)日：2013-03-27
申请号：EP11783960.5
申请日：2011-05-09
申请人： 3M Innovative Properties Company
发明人： OUDERKIRK, Andrew J., , YUN, Zhisheng, , CHENG, Xiaohui, , TAN, Kim Leong,
IPC分类号： G02B27/18 , G03B21/14
CPC分类号： G03B21/2033 , G03B21/2073 , G03B21/208 , G03B33/06 , H04N9/3167
摘要： The present disclosure relates generally to an optical element, a light projector that includes the optical element, and an image projector that includes the optical element. In particular, the optical element provides an improved uniformity of light by homogenizing the light with lenslet arrays, such as "fly-eye arrays" (FEA). A first FEA is positioned to intercept and converge an unpolarized combined light before the light is converted to a single polarization state, and a second FEA is positioned to intercept and diverge the converted light having a single polarization state.

8. 发明公开

EP2286296A1 OPTICAL ELEMENT AND COLOR COMBINER 审中-公开
标题翻译：光学元件和彩色组合器
公开(公告)号：EP2286296A1
公开(公告)日：2011-02-23
申请号：EP08874323.2
申请日：2008-12-18
申请人： 3M Innovative Properties Company
发明人： BRUZZONE, Charles L., , OUDERKIRK, Andrew J., , KINGSTON, Daniel J.
IPC分类号： G02B27/10 , G02B27/28
CPC分类号： G02B27/144 , G02B27/283
摘要： Optical elements, color combiners using the optical elements, and image projectors using the color combiners are described. The optical element includes color selective dichroic filters and a reflective polarizer. A line passing perpendicularly through each of the color selective dichroic filters intercepts the reflective polarizer at approximately 45 degrees. The optical element can also include retarders positioned adjacent to the color selective dichroic filters. The color combiner includes partially reflective light sources coupled to the optical element. Unpolarized light having different colors can enter the color combiner through the dichroic filters, and combined light of a desired polarization state can exit the color combiner. Light having an undesired polarization state can be recycled to the desired polarization state within the color combiner, so that light utilization efficiency is increased. The image projector includes a color combiner coupled to an imaging source and projection elements, so that a first portion of the combined light is directed to the projection element, and a second portion of the combined light is recycled back into the color combiner.
摘要翻译：描述了光学元件，使用光学元件的合色器以及使用合色器的图像投影仪。该光学元件包括颜色选择二向色滤光片和反射偏振片。垂直穿过每个彩色选择二向色滤光片的线以大约45度与反射式偏振片相交。光学元件还可以包括与色彩选择二向色滤光片相邻定位的延迟器。合色器包括耦合到光学元件的部分反射光源。具有不同颜色的非偏振光可以通过二向色滤光片进入合色器，并且具有期望偏振态的合并光可以离开合色器。具有不希望的偏振态的光可以在合色器内再循环到期望的偏振状态，从而提高光利用效率。图像投影仪包括耦合到成像源和投影元件的合色器，使得合并的光的第一部分被引导到投影元件，并且合并的光的第二部分被再循环回合色器。

9. 发明公开

EP2572232A2 POLARIZED PROJECTION ILLUMINATOR 审中-公开
标题翻译：偏光投影ILLUMINATOR
公开(公告)号：EP2572232A2
公开(公告)日：2013-03-27
申请号：EP11783961.3
申请日：2011-05-09
申请人： 3M Innovative Properties Company
发明人： WATSON, Philip E., , YUN, Zhisheng, , OUDERKIRK, Andrew J., , CHENG, Xiaohui, , TAN, Kim Leong, , TIO, Andrew T.,
IPC分类号： G02B27/18 , G03B21/20 , G02F1/13
CPC分类号： G03B33/06 , G03B21/2033 , G03B21/208 , H04N9/3167
摘要： The present disclosure relates generally to an optical element, a light projector that includes the optical element, and an image projector that includes the optical element. In particular, the optical element provides an improved uniformity of light by homogenizing the light with lenslet arrays, such as "fly-eye arrays" (FEA). The FEA is positioned to homogenize a polarized combined light after an unpolarized input light is converted to a single polarization state.

10. 发明公开

EP2162785A2 DESIGN PARAMETERS FOR THIN HOLLOW CAVITY BACKLIGHTS OF THE LIGHT-RECYCLING TYPE 失效
标题翻译：设计参数LIGHT循环型的超薄腔体倒车灯
公开(公告)号：EP2162785A2
公开(公告)日：2010-03-17
申请号：EP08755853.2
申请日：2008-05-19
申请人： 3M Innovative Properties Company
发明人： NEVITT, Timothy J. , HEBRINK, Timothy J. , WEBER, Michael F. , BIERNATH, Rolf W. , FREIER, David, G. , WHEATLEY, John A. , OUDERKIRK, Andrew J., , HOYLE, Charles D. , DERKS, Kristopher J.
IPC分类号： G02F1/13357 , G02B6/00
CPC分类号： F21V7/04 , G02B6/0055 , G02B6/0056 , G02B6/0068 , G02B6/0096 , G02F1/133603 , G02F1/133605 , G02F1/13362
摘要： A backlight unit (10), for a display or for general Iighting purposes, has a hollow cavity (16) instead of a solid Iight guide. One or more Iight sources (24a-c), e.g. LEDs, emit Iight into the cavity, which is formed by a front (12) and a back reflector (14). The backlight has either a directly-lit or an edge-lit configuration; it can have a Iarge area and still be thin; it consists of fewer components than conventional devices and its design permits the reuse of Iight reflected internally (Iight recycling). The unit emits Iight of a predefined polarisation and its viewing angle properties can be tailored. Light is uniformly distributed within the guide and the guide's output (20b, 20d) is substantially collimated. Such backlights occupy a specific region in a parameter space defined by two parameters: first, the ratio of the output emission area to the total source emission area should lie in the range from 0.0001 to 0.1 ; and second, the ratio of SEP (an average plan view source separation, which is a measure of the average spacing of the Iight sources in the plane of the unit) to the height of the cavity (H) should be in the range from 3 to 10. There is also a discussion of the required number of light sources N, their arrangement near the periphery of the cavity, as well as the shape and size of the output emission area. The backlight exhibits a minimum brightness uniformity (VESA) value, even when a subset of M adjacent sources is switched off (where M is at least 0.1 N or M>2 or both).

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