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公开(公告)号:US20100156953A1
公开(公告)日:2010-06-24
申请号:US12600862
申请日:2008-05-19
申请人: Timothy J. Nevitt , Timothy J. Hebrink , Michael F. Weber , Rolf W. Biernath , David G. Freier , John A. Wheatley , Andrew J. Ouderkirk , Charles D. Hoyle , Kristopher J. Derks
发明人: Timothy J. Nevitt , Timothy J. Hebrink , Michael F. Weber , Rolf W. Biernath , David G. Freier , John A. Wheatley , Andrew J. Ouderkirk , Charles D. Hoyle , Kristopher J. Derks
IPC分类号: G09G5/10
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) has a hollow cavity (16) instead of employing a light guide. One or more light sources (24a-c), such as LEDs, are arranged to emit light into the cavity, which is formed by a front (12) and a back reflector (14). The backlight is typically of the edge-lit type. The backlight can have a large area, is thin and consists of fewer components than conventional devices. Its design permits light recycling. The unit emits light of a predefined polarisation and can be arranged to have desired horizontal/vertical viewing angle properties. Light is uniformly distributed within the guide and the light output (20b, 2Od) 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 0.0001 to 0.1; and second, the ratio of the SEP to the height of the cavity (H) should be in the range 3 to 10, where the SEP is an average plan view source separation, a special measure of the average spacing of light sources in the plane of the unit. There is also a discussion on 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. A required minimum brightness uniformity (VESA) value to be maintained, when a subset of Madjacent sources is switched off (where M is at least 0.1 N or M>2 or both), is also disclosed. The backlight can be used for a display or for general lighting purposes.
摘要翻译: 背光单元(10)具有中空腔(16)而不是使用光导。 布置一个或多个光源(24a-c),诸如LED,以将光发射到由前部(12)和后部反射器(14)形成的空腔中。 背光通常是边缘照明型。 背光源可以具有较大的面积,较薄并且由比传统设备更少的组件组成。 其设计允许光回收。 该单元发射预定极化的光,并且可以被布置成具有期望的水平/垂直视角特性。 光均匀分布在引导件内,并且光输出(20b,20d)基本准直。 这样的背光灯占据由两个参数定义的参数空间中的特定区域:首先,输出排放面积与总排放源面积的比值应在0.0001到0.1的范围内; 第二,SEP与空腔高度的比值(H)应在3到10的范围内,其中SEP是平均平面视图源分离,平面中光源的平均间距的特殊测量 的单位。 还有关于所需数量的光源N的讨论,它们在空腔的周边附近的布置以及输出发射区域的形状和尺寸。 还公开了当Madjacent源的子集(其中M为至少0.1N或M> 2或两者)时要维持的所需的最小亮度均匀性(VESA)值。 背光可用于显示器或用于一般照明目的。
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公开(公告)号:US08523419B2
公开(公告)日:2013-09-03
申请号:US12600862
申请日:2008-05-19
申请人: Timothy J. Nevitt , Timothy J. Hebrink , Michael F. Weber , Rolf W. Biernath , David G. Freier , John A. Wheatley , Andrew J. Ouderkirk , Charles D. Hoyle , Kristopher J. Derks
发明人: Timothy J. Nevitt , Timothy J. Hebrink , Michael F. Weber , Rolf W. Biernath , David G. Freier , John A. Wheatley , Andrew J. Ouderkirk , Charles D. Hoyle , Kristopher J. Derks
IPC分类号: F21V7/04
CPC分类号: F21V7/04 , G02B6/0055 , G02B6/0056 , G02B6/0068 , G02B6/0096 , G02F1/133603 , G02F1/133605 , G02F1/13362
摘要: An edge-lit backlight comprises a front and back reflector forming a hollow light recycling cavity having a cavity depth H and an output region of area Aout, and one or more light sources disposed proximate a periphery of the backlight to emit light into the light recycling cavity. The light sources have an average plan view source separation of SEP collectively having an active emitting area Aemit, wherein a first parameter equals Aemit/Aout and a second parameter equals SEP/H. The first parameter is in a range from 0.0001 to 0.1, and by the second parameter is in a range from 3 to 10. The front reflector has a hemispherical reflectivity for unpolarized visible light of Rfhemi, and the back reflector has a hemispherical reflectivity for unpolarized visible light of Rbhemi, and Rfhemi*Rbhemi is at least 0.70.
摘要翻译: 边缘照明背光包括形成具有空腔深度H和区域Aout的输出区域的中空光循环腔的前后反射器,以及靠近背光源的周边设置的一个或多个光源,以将光发射到光回收 腔。 光源具有共同具有有源发射区域Aemit的SEP的平均平面视图源分离,其中第一参数等于Aemit / Aout,第二参数等于SEP / H。 第一个参数在0.0001到0.1的范围内,第二个参数在3到10的范围内。前反射镜对于Rfhemi的非偏振可见光具有半球反射率,背反射器具有非偏光的半球反射率 Rbhemi的可见光,Rfhemi * Rbhemi至少为0.70。
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公开(公告)号:US08469575B2
公开(公告)日:2013-06-25
申请号:US12600914
申请日:2008-05-19
申请人: Michael F. Weber , Timothy J. Hebrink , Timothy J. Nevitt , John A. Wheatley , Craig R. Schardt , Rolf W. Biernath , William J. Bryan , Andrew J. Ouderkirk , David G. Freier , Myron K. Jordan , Kristopher J. Derks , Zhaohui Yang , Edward J. Kivel
发明人: Michael F. Weber , Timothy J. Hebrink , Timothy J. Nevitt , John A. Wheatley , Craig R. Schardt , Rolf W. Biernath , William J. Bryan , Andrew J. Ouderkirk , David G. Freier , Myron K. Jordan , Kristopher J. Derks , Zhaohui Yang , Edward J. Kivel
IPC分类号: F21V7/04
CPC分类号: F21K9/54 , F21K9/62 , F21V7/04 , G02B5/305 , G02B5/3083 , G02B6/0055 , G02B6/0056 , G02B6/0073 , G02B6/0096 , G02B27/286 , G02F1/133605 , G02F1/13362 , G02F2001/133545
摘要: A backlight that includes a front reflector and a back reflector that form a hollow light recycling cavity including an output surface is disclosed. The backlight further includes one or more light sources disposed to emit light into the light recycling cavity. The front reflector includes an on-axis average reflectivity of at least 90% for visible light polarized in a first plane, and an on-axis average reflectivity of at least 25% but less than 90% for visible light polarized in a second plane perpendicular to the first plane.
摘要翻译: 公开了一种包括形成包括输出表面的中空光循环腔的前反射器和后反射器的背光源。 背光源还包括设置成将光发射到光循环腔中的一个或多个光源。 前反射器包括在第一平面中偏振的可见光的至少90%的轴上平均反射率,以及垂直于第二平面偏振的可见光的至少25%但小于90%的轴上平均反射率 到第一架飞机。
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公开(公告)号:US20100165660A1
公开(公告)日:2010-07-01
申请号:US12600914
申请日:2008-05-19
申请人: Michael F. Weber , Timothy J. Hebrink , Timothy J. Nevitt , John A. Wheatley , Craig R. Schardt , Rolf W. Biernath , William J. Bryan , Andrew J. Ouderkirk , David G. Freier , Myron K. Jordan , Kristopher J. Derks , Zhaohui Yang , Edward J. Kivel
发明人: Michael F. Weber , Timothy J. Hebrink , Timothy J. Nevitt , John A. Wheatley , Craig R. Schardt , Rolf W. Biernath , William J. Bryan , Andrew J. Ouderkirk , David G. Freier , Myron K. Jordan , Kristopher J. Derks , Zhaohui Yang , Edward J. Kivel
IPC分类号: F21V7/04
CPC分类号: F21K9/54 , F21K9/62 , F21V7/04 , G02B5/305 , G02B5/3083 , G02B6/0055 , G02B6/0056 , G02B6/0073 , G02B6/0096 , G02B27/286 , G02F1/133605 , G02F1/13362 , G02F2001/133545
摘要: A backlight that includes a front reflector and a back reflector that form a hollow light recycling cavity including an output surface is disclosed. The backlight further includes one or more light sources disposed to emit light into the light recycling cavity. The front reflector includes an on-axis average reflectivity of at least 90% for visible light polarized in a first plane, and an on-axis average reflectivity of at least 25% but less than 90% for visible light polarized in a second plane perpendicular to the first plane.
摘要翻译: 公开了一种包括形成包括输出表面的中空光循环腔的前反射器和后反射器的背光源。 背光源还包括设置成将光发射到光循环腔中的一个或多个光源。 前反射器包括在第一平面中偏振的可见光的至少90%的轴上平均反射率,以及垂直于第二平面偏振的可见光的至少25%但小于90%的轴上平均反射率 到第一架飞机。
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公开(公告)号:US08608363B2
公开(公告)日:2013-12-17
申请号:US12600878
申请日:2008-05-19
申请人: Michael F. Weber , Timothy J. Nevitt , John A. Wheatley , Rolf W. Biernath , David G. Freier , Gilles J. Benoit , Charles D. Hoyle , Andrew J. Ouderkirk , Zhachui Yang
发明人: Michael F. Weber , Timothy J. Nevitt , John A. Wheatley , Rolf W. Biernath , David G. Freier , Gilles J. Benoit , Charles D. Hoyle , Andrew J. Ouderkirk , Zhachui Yang
IPC分类号: F21V7/04
CPC分类号: F21V7/00 , F21K9/60 , G02B6/0055 , G02B6/0056 , G02B6/0096 , G02F1/133605 , G02F1/133606 , G02F1/133611 , G02F1/133615 , G02F1/13362
摘要: A hollow light-recycling backlight has a “semi-specular” component providing a balance of specularly and diffusely reflected light improving the uniformity of the light output. The component may be arranged on the reflectors (1021), (1014) or inside the cavity (1016). This balance is achieved by designing the component's “transport ratio” defined by (F−B)/(F+B), (F and B are the amounts of incident light scattered forwards and backwards respectively by the component in the plane of the cavity) to lie in a certain range. Furthermore, the product of the front and back reflector “hemispherical” reflectivities should also lie in a given range. Alternatively, the “cavity transport value”, a measure of how well the cavity can spread injected light from the injection point to distant points in the cavity should lie in a further range and the “hemispherical” reflectivity of the back reflector should be >0.7.
摘要翻译: 中空回光背光具有“半镜面”部件,提供镜面和漫反射光的平衡,从而提高光输出的均匀性。 部件可以布置在反射器(1021),(1014)上或腔体(1016)内。 通过设计由(FB)/(F + B)定义的部件的“传送比”,(F和B分别是通过腔的平面中的部件向前和向后散射的入射光的量)到 在一定范围内。 此外,前后反射镜“半球”反射率的乘积也应在给定范围内。 或者,“空穴输送值”是空穴将喷射点扩散到空腔中的远点的程度的量度应该在另一范围内,后反射体的“半球形”反射率应当> 0.7 。
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公开(公告)号:US20100238686A1
公开(公告)日:2010-09-23
申请号:US12600878
申请日:2008-05-19
申请人: Michael F. Weber , Timothy J. Nevitt , John A. Wheatley , Rolf W. Biernath , David G. Freier , Gilles J. Benoit , Charles D. Hoyle , Adrew J. Ouderkirk , Zhachui Yang
发明人: Michael F. Weber , Timothy J. Nevitt , John A. Wheatley , Rolf W. Biernath , David G. Freier , Gilles J. Benoit , Charles D. Hoyle , Adrew J. Ouderkirk , Zhachui Yang
CPC分类号: F21V7/00 , F21K9/60 , G02B6/0055 , G02B6/0056 , G02B6/0096 , G02F1/133605 , G02F1/133606 , G02F1/133611 , G02F1/133615 , G02F1/13362
摘要: A hollow light-recycling backlight has a “semi-specular” component providing a balance of specularly and diffusely reflected light improving the uniformity of the light output. The component may be arranged on the reflectors (1021), (1014) or inside the cavity (1016). This balance is achieved by designing the component's “transport ratio” defined by (F−B)/(F+B), (F and B are the amounts of incident light scattered forwards and backwards respectively by the component in the plane of the cavity) to lie in a certain range. Furthermore, the product of the front and back reflector “hemispherical” reflectivities should also lie in a given range. Alternatively, the “cavity transport value”, a measure of how well the cavity can spread injected light from the injection point to distant points in the cavity should lie in a further range and the “hemispherical” reflectivity of the back reflector should be >0.7.
摘要翻译: 中空回光背光具有“半镜面”部件,提供镜面和漫反射光的平衡,从而提高光输出的均匀性。 部件可以布置在反射器(1021),(1014)上或腔体(1016)内。 该平衡通过设计由(F-B)/(F + B)定义的部件的“传送比”来实现,(F和B分别是由腔内的部件向前和向后散射的入射光量) )在一定范围内。 此外,前后反射镜“半球”反射率的乘积也应在给定范围内。 或者,“空穴输送值”是空穴将喷射点扩散到空腔中的远点的程度的量度应该在更远的范围内,背反射器的“半球形”反射率应当> 0.7 。
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公开(公告)号:US20110090423A1
公开(公告)日:2011-04-21
申请号:US12997269
申请日:2009-05-11
申请人: John A. Wheatley , Rolf W. Biernath , Michael A. Meis , David G. Freier , Tao Liu , Timothy J. Nevitt
发明人: John A. Wheatley , Rolf W. Biernath , Michael A. Meis , David G. Freier , Tao Liu , Timothy J. Nevitt
IPC分类号: G02F1/13357 , F21V7/00 , G02F1/1335
CPC分类号: G02F1/133605 , G02F1/133603 , G02F1/133611
摘要: Illumination devices having a partially transmissive front reflector, a back reflector, and a cavity between them are disclosed. At least one light injector including a baffle and a light source is disposed in the cavity. The light injector is capable of injecting partially collimated light into the cavity. The output area of the illumination device can be increased by disposing light injectors progressively within the cavity, without sacrificing uniformity of the light emitted through the output area.
摘要翻译: 公开了具有部分透射的前反射器,后反射器和它们之间的空腔的照明装置。 包括挡板和光源的至少一个光注射器设置在空腔中。 光注射器能够将部分准直的光注入空腔。 可以通过将光注入器逐渐地设置在空腔内来增加照明装置的输出面积,而不会牺牲通过输出区域发射的光的均匀性。
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公开(公告)号:US20100165621A1
公开(公告)日:2010-07-01
申请号:US12600898
申请日:2008-05-19
申请人: Thomas R. Hoffend, JR. , David G. Freier , Rolf W. Biernath , Anthony J. Piekarczyk , Michael A. Meis
发明人: Thomas R. Hoffend, JR. , David G. Freier , Rolf W. Biernath , Anthony J. Piekarczyk , Michael A. Meis
CPC分类号: G02B6/0031 , G02B6/0055 , G02B6/0096
摘要: Illumination devices whose function are to inject light into backlights, particularly into backlights that incorporate a recycling cavity formed by a front (50) and back (52) reflector, are described. In some embodiments, the device includes a light source (59) disposed proximate the back reflector, and first (42) and second (44) reflecting structures. The first reflecting structure includes an inner reflective surface (41b) at least a portion of which is inclined to form a wedge with the back reflector. The wedge partially collimates and directs light from the light source generally away from the recycling cavity. The second reflecting structure receives light exiting the wedge and redirects such light into an injection beam directed into the recycling cavity.
摘要翻译: 描述了其功能是将光注入背光,特别是掺入由前(50)和后(52)反射器形成的再循环腔的背光)的照明装置。 在一些实施例中,该装置包括靠近后反射器设置的光源(59),以及第一(42)和第二(44)反射结构。 第一反射结构包括内部反射表面(41b),其至少一部分倾斜以与后部反射器形成楔形。 楔形部分准直并引导来自光源的光通常远离再循环腔。 第二反射结构接收离开楔形物的光并且将这种光重定向到被引导回到再循环腔中的注射束。
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公开(公告)号:US20100271819A1
公开(公告)日:2010-10-28
申请号:US12620946
申请日:2009-11-18
申请人: Martin Kristoffersen , Rolf W. Biernath , Thomas R. Corrigan , David G. Freier , Raymond P. Johnston , Michael A. Meis , Kenneth A.P. Meyer , Vadim N. Savvateev , William A. Tolbert , Phillip E. Tuma
发明人: Martin Kristoffersen , Rolf W. Biernath , Thomas R. Corrigan , David G. Freier , Raymond P. Johnston , Michael A. Meis , Kenneth A.P. Meyer , Vadim N. Savvateev , William A. Tolbert , Phillip E. Tuma
CPC分类号: F21V29/004 , F21S8/033 , F21S8/08 , F21V29/51 , F21V29/71 , F21V29/75 , F21V29/763 , F21V29/773 , F21W2131/103 , F21Y2115/10
摘要: The present disclosure relates to illumination or lighting assemblies and systems that provide illumination using LEDs. In one aspect, the present disclosure provides a lighting assembly, comprising: multiple light emitting diodes that emit light; an optical system that directs the light emitted by the light emitting diodes, the optical system positioned adjacent to light emitting diodes; and a cooling fin including a two-phase cooling system, the cooling fin positioned adjacent to the light emitting diodes such that the two-phase cooling system removes heat from the light emitting diodes. In another aspect, the present disclosure provides a lighting system including multiple lighting assemblies. The lighting assemblies and systems of the present disclosure can be used in, for example, a street light, a backlight (including, for example, a sun-coupled backlight), a wall wash light, a billboard light, a parking ramp light, a high bay light, a parking lot light, a signage lit sign (also referred to as an electric sign), static signage (including, for example, sun-coupled static signage), illuminated signage, and other lighting applications.
摘要翻译: 本发明涉及使用LED提供照明的照明或照明组件和系统。 一方面,本公开提供了一种照明组件,包括:发光的多个发光二极管; 引导由发光二极管发射的光的光学系统,位于发光二极管附近的光学系统; 以及包括两相冷却系统的冷却翅片,所述冷却翅片邻近所述发光二极管定位,使得所述两相冷却系统从所述发光二极管中除去热量。 在另一方面,本公开提供了一种包括多个照明组件的照明系统。 本公开的照明组件和系统可以用于例如路灯,背光(包括例如太阳耦合背光),洗墙灯,广告牌灯,停车斜坡灯, 一个高耸的灯光,一个停车场的灯光,一个标志性的灯光标志(也称为电气标志),静电标牌(包括例如太阳光静电标牌),照明标牌和其他照明应用。
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公开(公告)号:US08192048B2
公开(公告)日:2012-06-05
申请号:US12620946
申请日:2009-11-18
申请人: Martin Kristoffersen , Rolf W. Biernath , Thomas R. Corrigan , David G. Freier , Raymond P. Johnston , Michael A. Meis , Kenneth A. P. Meyer , Vadim N. Savvateev , William A. Tolbert , Phillip E. Tuma
发明人: Martin Kristoffersen , Rolf W. Biernath , Thomas R. Corrigan , David G. Freier , Raymond P. Johnston , Michael A. Meis , Kenneth A. P. Meyer , Vadim N. Savvateev , William A. Tolbert , Phillip E. Tuma
IPC分类号: F21V1/00
CPC分类号: F21V29/004 , F21S8/033 , F21S8/08 , F21V29/51 , F21V29/71 , F21V29/75 , F21V29/763 , F21V29/773 , F21W2131/103 , F21Y2115/10
摘要: The present disclosure relates to illumination or lighting assemblies and systems that provide illumination using LEDs. In one aspect, the present disclosure provides a lighting assembly, comprising: multiple light emitting diodes that emit light; an optical system that directs the light emitted by the light emitting diodes, the optical system positioned adjacent to light emitting diodes; and a cooling fin including a two-phase cooling system, the cooling fin positioned adjacent to the light emitting diodes such that the two-phase cooling system removes heat from the light emitting diodes. In another aspect, the present disclosure provides a lighting system including multiple lighting assemblies. The lighting assemblies and systems of the present disclosure can be used in, for example, a street light, a backlight (including, for example, a sun-coupled backlight), a wall wash light, a billboard light, a parking ramp light, a high bay light, a parking lot light, a signage lit sign (also referred to as an electric sign), static signage (including, for example, sun-coupled static signage), illuminated signage, and other lighting applications.
摘要翻译: 本公开涉及使用LED提供照明的照明或照明组件和系统。 一方面,本公开提供了一种照明组件,包括:发光的多个发光二极管; 引导由发光二极管发射的光的光学系统,位于发光二极管附近的光学系统; 以及包括两相冷却系统的冷却翅片,所述冷却翅片邻近所述发光二极管定位,使得所述两相冷却系统从所述发光二极管中除去热量。 在另一方面,本公开提供了一种包括多个照明组件的照明系统。 本公开的照明组件和系统可以用于例如路灯,背光(包括例如太阳耦合背光),洗墙灯,广告牌灯,停车斜坡灯, 一个高耸的灯光,一个停车场的灯光,一个标志性的灯光标志(也称为电气标志),静电标牌(包括例如太阳光静电标牌),照明标牌和其他照明应用。
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