公开(公告)号：US08033674B1

公开(公告)日：2011-10-11

申请号：US12871796

申请日：2010-08-30

申请人： Zane Coleman ,  Terence Yeo ,  Timothy Kelly

发明人： Zane Coleman ,  Terence Yeo ,  Timothy Kelly

IPC分类号： F21V9/14

CPC分类号： G02B5/021 ,  G02B5/0242 ,  G02B5/0278 ,  G02B5/045 ,  G02B5/3083 ,  G02F1/133606 ,  G02F1/133611 ,  G02F2203/07

摘要： The present invention provides a polarization-sensitive light homogenizer and a backlight and display using the same. The homogenizer improves the spatial luminance and color uniformity, increases the luminance in a direction normal to the homogenizer and provides increased luminance through polarized light recycling within the light homogenizer and backlight. In one embodiment, the homogenizer includes a polarization-sensitive anisotropic light-scattering (PDALS) region, a non-polarization-sensitive anisotropic light-scattering region, and a substantially non-scattering region. In a further embodiment, the non-scattering region is birefringent. The spatially non-uniform incident light flux from a backlight including one or more non-extended light emitting sources is scattered efficiently by the NPDASL region and is incident on the PDALS region which backscatters light orthogonal to the polarization state desired for efficient illumination of a liquid crystal display panel. The NPDASL and the PDALS form a multiple reflection cavity that will increase the spatial luminance while improving the light recycling of the appropriate polarization state. In a further embodiment the light homogenizer includes at least one of a light collimating region and a light re-directing region.

摘要翻译： 本发明提供一种偏振光感光光均化器和使用其的背光和显示器。 均化器改善了空间亮度和颜色均匀性，增加了垂直于均质器的方向上的亮度，并且通过在光均化器和背光源内的偏振光再循环提供增加的亮度。 在一个实施例中，均化器包括偏振敏感各向异性光散射（PDALS）区域，非偏振敏感各向异性光散射区域和基本上非散射区域。 在另一实施例中，非散射区域是双折射的。 来自包含一个或多个非扩展发光源的背光源的空间不均匀的入射光通量被NPDASL区域有效地散射并入射到PDALS区域，该PDALS区域反向散射与用于有效照射液体所需的偏振状态正交的光 水晶显示面板。 NPDASL和PDALS形成多反射腔，其将增加空间亮度，同时改善适当极化状态的光循环。 在另一实施例中，光均化器包括光准直区域和光引导区域中的至少一个。

公开(公告)号：US08430548B1

公开(公告)日：2013-04-30

申请号：US12839404

申请日：2010-07-19

申请人： Timothy Kelly ,  Terence Yeo ,  Zane Coleman

发明人： Timothy Kelly ,  Terence Yeo ,  Zane Coleman

IPC分类号： F21V7/04

CPC分类号： G02B6/0041 ,  F21S8/088 ,  F21V1/00 ,  F21V2200/10 ,  F21V2200/20 ,  F21W2131/103 ,  F21Y2105/00 ,  F21Y2115/10 ,  G02B5/0242 ,  G02B5/0257 ,  G02B5/0284 ,  G02B6/0051 ,  G02B6/0055 ,  G02B27/0988

摘要： An enhanced light fixture containing a volumetric diffuser to control the spatial luminance uniformity and angular spread of light from the light fixture is disclosed. The volumetric diffuser provides increased spatial luminance uniformity and efficient control over the illuminance such that power reductions, reduced cost or reduced size may be achieved. The volumetric diffuser contains one or more regions of volumetric light scattering particles. The spread of illumination of light from a light emitting source can be efficiently controlled by using a thin, low cost, volumetric, diffuser to direct the light in the desired direction. This allows the reduction in number of light sources, a reduction in power requirements, or a more tailored illumination. When the volumetric diffuser is used in combination with a waveguide to extract light, the light is efficiently coupled out of the waveguide in a thin, planar surface. This transmissive diffuser can be coupled to a reflecting element such that the resulting combination is a light reflecting element with a desired light scattering profile.

摘要翻译： 公开了一种增强的灯具，其包含用于控制来自灯具的光的空间亮度均匀性和角度扩展的体积扩散器。 体积扩散器提供增加的空间亮度均匀性和对照度的有效控制，使得可以实现功率降低，降低成本或减小尺寸。 体积扩散器包含一个或多个体积光散射颗粒的区域。 可以通过使用薄的，低成本的体积扩散器来有效地控制来自发光源的光的照射，以将光引导到期望的方向。 这允许减少光源的数量，降低功率需求，或者更适合照明。 当体积扩散器与波导组合使用以提取光时，光在薄的平坦表面中有效地耦合到波导外。 该透射扩散器可以耦合到反射元件，使得所得到的组合是具有期望的光散射分布的光反射元件。

公开(公告)号：US08033706B1

公开(公告)日：2011-10-11

申请号：US12775631

申请日：2010-05-07

申请人： Timothy Kelly ,  Zane Coleman ,  Terence Yeo

发明人： Timothy Kelly ,  Zane Coleman ,  Terence Yeo

IPC分类号： F21V7/04 ,  F21V5/00

CPC分类号： F21V7/04 ,  F21V2200/30 ,  G02B6/0036 ,  G02B6/0041 ,  G02B6/0043 ,  G02B6/0046 ,  G02B6/0061 ,  G02F1/133606

摘要： In one embodiment of this invention, a lightguide comprises a low refractive index region disposed between light extracting region and a non-scattering region. In further embodiment of this invention, volumetric scattering lightguide comprises a low refractive index region disposed between a volumetric scattering region and a non-scattering region. In some embodiments, a light emitting device comprising a volumetric scattering lightguide can angularly filter light input into the edge of a volumetric scattering lightguide by controlling the refractive index of the low refractive index region relative to the refractive index of the non-scattering region to prevent direct illumination of the volumetric scattering region, provide a luminance uniformity greater than 70%, or improve the angular luminous intensity of the light emitting device. The volumetric scattering lightguide may be curved, tapered, and a light emitting device comprising the same may further comprise at least one light source and a light redirecting element.

摘要翻译： 在本发明的一个实施例中，光导包括设置在光提取区和非散射区之间的低折射率区。 在本发明的另一实施例中，体积散射光导包括设置在体积散射区域和非散射区域之间的低折射率区域。 在一些实施例中，包括体积散射光导的发光器件可以通过相对于非散射区域的折射率控制低折射率区域的折射率来角度地滤光输入到体积散射光导的边缘中的光，以防止 直接照射体积散射区域，提供大于70％的亮度均匀性，或提高发光器件的角度发光强度。 体积散射光导可以是弯曲的，锥形的，并且包括其的发光器件还可以包括至少一个光源和光重定向元件。

公开(公告)号：US20060290253A1

公开(公告)日：2006-12-28

申请号：US11426198

申请日：2006-06-23

申请人： Terence Yeo ,  Zane Coleman ,  Timothy Kelly

发明人： Terence Yeo ,  Zane Coleman ,  Timothy Kelly

IPC分类号： H01J5/16 ,  H01K1/30

CPC分类号： G02B5/0278 ,  G02B3/0006 ,  G02B5/0226 ,  G02B5/0231 ,  G02B5/0242 ,  G02B5/0257 ,  G02B5/045 ,  G02B6/0051 ,  G02B6/0068 ,  G02F1/133606 ,  G02F2001/133607

摘要： The present invention provides improved light diffusing plates and films that can be used in backlights to increase brightness, provide more control over the viewing angle, reduce thickness and the reduce the overall display cost. By using a volumetric, asymmetric scattering region within a diffuser plate or film, light can be preferentially scattered more in one direction than the other direction. In backlights where the illumination light sources are substantially linear arrays, a diffuser plate or film that scatters predominantly in the direction perpendicular to the linear array will have more efficient forward light throughput than one that scatters light in a symmetric light scattering profile. In addition, a light re-directing region such as an asymmetric scattering region can efficiently allow a light-emitting device to be direct lit and edge lit, simultaneously.

摘要翻译： 本发明提供了改进的光漫射板和膜，其可用于背光以增加亮度，提供对视角的更多控制，减小厚度并降低整体显示成本。 通过在漫射板或膜内使用体积不对称的散射区域，光可以优先在一个方向上比另一个方向更多地散射。 在照明光源基本上是线性阵列的背光中，主要在垂直于线阵列的方向上散射的漫射板或膜将比散射对称光散射分布中的光的前向光通过量更有效。 此外，诸如不对称散射区域的光重定向区域可以同时有效地使发光装置被直接点亮和边缘点亮。

公开(公告)号：US20100321952A1

公开(公告)日：2010-12-23

申请号：US12772395

申请日：2010-05-03

申请人： Zane Coleman ,  Peter Yi Yan Ngai ,  David Morin ,  Michael Trung Tran ,  Terence Yeo

发明人： Zane Coleman ,  Peter Yi Yan Ngai ,  David Morin ,  Michael Trung Tran ,  Terence Yeo

IPC分类号： F21V7/22

CPC分类号： F21S8/04 ,  F21S8/06 ,  F21V2200/20 ,  F21Y2115/10 ,  G02B6/0035 ,  G02B6/0061 ,  G02B6/0063

摘要： In one aspect, the present invention provides light emitting devices, including light fixtures and luminaires. In some embodiments, a light emitting device comprises at least one light source, a lightguide operable to receive light from the at least one light source at a first location on the lightguide, at least one light extraction region optically coupled to the lightguide and a substantially non-scattering region along a portion of the lightguide.

公开(公告)号：US20080094854A1

公开(公告)日：2008-04-24

申请号：US11957406

申请日：2007-12-14

申请人： Zane Coleman ,  Terence Yeo

发明人： Zane Coleman ,  Terence Yeo

IPC分类号： F21V8/00

CPC分类号： G02B6/0041 ,  G02B6/0046 ,  G02B6/0055 ,  G02B6/0068 ,  G09F13/0409 ,  G09F13/22

摘要： An enhanced electroluminescent sign containing a volumetric, anisotropic scattering element to control the angular spread of light from the sign and the spatial luminance uniformity of the sign. The anisotropic scattering element contains one or more regions of asymmetrically-shaped light scattering particles. The angular spread of light leaving a sign from a light emitting source can be efficiently controlled by using a thin, low cost, volumetric, anisotropic scattering elements to angularly and spatially distribute light, permitting the reduction in number of light sources, a reduction in power requirements, or a more tailored viewing angle.

摘要翻译： 增强的电致发光符号，其包含体积各向异性散射元件，以控制来自符号的光的角度扩展和符号的空间亮度均匀性。 各向异性散射元件包含一个或多个非对称形状的光散射颗粒区域。 通过使用薄的，低成本的体积的各向异性散射元件来角度和空间地分配光，可以有效地控制从发光源离开符号的光的角度扩展，允许减少光源数量，减少功率 要求或更为量身定制的视角。

公开(公告)号：US20060215958A1

公开(公告)日：2006-09-28

申请号：US11282151

申请日：2005-11-17

申请人： Terence Yeo ,  Zane Coleman

发明人： Terence Yeo ,  Zane Coleman

IPC分类号： G02B6/26

CPC分类号： G02B6/0041 ,  G02B6/0046 ,  G02B6/0055 ,  G02B6/0068 ,  G09F13/0409 ,  G09F13/22

摘要： An enhanced electroluminescent sign containing a volumetric, anisotropic scattering element to control the angular spread of light from the sign and the spatial luminance uniformity of the sign. The anisotropic scattering element contains one or more regions of asymmetrically-shaped light scattering particles. The angular spread of light leaving a sign from a light emitting source can be efficiently controlled by using a thin, low cost, volumetric, anisotropic scattering elements to angularly and spatially distribute light, permitting the reduction in number of light sources, a reduction in power requirements, or a more tailored viewing angle.

摘要翻译： 增强的电致发光符号，其包含体积各向异性散射元件，以控制来自符号的光的角度扩展和符号的空间亮度均匀性。 各向异性散射元件包含一个或多个非对称形状的光散射颗粒区域。 通过使用薄的，低成本的体积的各向异性散射元件来角度和空间地分配光，可以有效地控制从发光源离开符号的光的角度扩展，允许减少光源数量，减少功率 要求或更为量身定制的视角。

公开(公告)号：US20060056022A1

公开(公告)日：2006-03-16

申请号：US11200592

申请日：2005-08-10

申请人： Terence Yeo ,  Zane Coleman

发明人： Terence Yeo ,  Zane Coleman

IPC分类号： G03B21/56

CPC分类号： G03B21/625 ,  G03B21/602

摘要： An imaging material has been developed which provides improved image contrast, increased gain and increased viewing angle. A method for production of the screen element is also described. The imaging material of the invention includes a refractive optical element which redirects incident light along a desired axis, a light transmissive focusing region which diffuses the light along the desired axis, and a controlled light-transmissive region which controls backscatter and increases contrast. The refractive optical element desirably includes an active surface such as a lenticular array embossed thereon which serves to redirect incident light as desired. The focusing region desirably is made of a matrix material having a refractive index n1, having dispersed throughout the matrix asymmetric micro-bodies that have a refractive index n2 different from n1. The controlled light-transmissive region may desirably comprise an alternating black stripe and transparent region. Various implementations of these elements of course are contemplated as within the scope of the invention The materials described herein are typically used in a rear and/or front projection display system such as those used in televisions, computers, home theatres, information displays and simulation systems.

摘要翻译： 已经开发了成像材料，其提供改善的图像对比度，增加的增益和增加的视角。 还描述了用于生产屏幕元件的方法。 本发明的成像材料包括折射光学元件，其沿着期望的轴重定向入射光，将光沿着期望的轴扩散的透光聚焦区域和控制反向散射并增加对比度的受控光透射区域。 折射光学元件理想地包括有效表面，例如压印在其上的透镜阵列，其用于根据需要重定向入射光。 聚焦区域期望地由具有折射率n <1的矩阵材料制成，其具有分散在整个矩阵不对称微体中，所述不对称微体具有与n不同的折射率n <2 < 1 。 受控的透光区域可以理想地包括交替的黑色条纹和透明区域。 当然，这些元件的各种实施方式也被认为在本发明的范围内。这里描述的材料通常用于后面和/或前投影显示系统中，例如在电视机，计算机，家庭影院，信息显示和模拟系统中使用的那些 。

公开(公告)号：US08761565B1

公开(公告)日：2014-06-24

申请号：US12762253

申请日：2010-04-16

申请人： Zane Coleman ,  Terence Yeo

发明人： Zane Coleman ,  Terence Yeo

IPC分类号： F21V5/04 ,  F21V7/04 ,  G02B6/10 ,  F21K99/00 ,  F21V5/00

CPC分类号： F21V5/04 ,  F21K9/232 ,  F21K9/27 ,  F21K9/61 ,  F21V5/002 ,  F21V7/005 ,  F21V7/043 ,  F21Y2107/00 ,  F21Y2115/10 ,  G02B6/0045 ,  G02B6/0053 ,  G02B6/0055

摘要： In one embodiment of this invention, a device comprises an arcuate lightguide with an arcuate light emitting surface and light extracting features wherein the arcuate light emitting surface intersects the optical axis of a light source when disposed on the input edge of the lightguide. The light emitting surface of the lightguide may be in the shape of a elliptic paraboloid or parabolic cylinder or tapered. In another embodiment of this invention, a device comprises an arcuate lightguide wherein the wherein the ratio of the sagittal depth of the lightguide to the thickness of the first input edge is greater than 2. In another embodiment of this invention, the device is a light emitting device comprising the aforementioned lightguide and a light source.

摘要翻译： 在本发明的一个实施例中，装置包括具有弓形发光表面的弓形光导和光提取特征，其中当设置在光导的输入边缘上时，弓形发光表面与光源的光轴相交。 光导体的发光表面可以是椭圆抛物面或抛物线圆柱体或锥形的形状。 在本发明的另一个实施例中，一种装置包括弓形光导，其中光导的矢状深度与第​​一输入边缘的厚度之比大于2.在本发明的另一实施例中，该装置是光 包括上述光导和光源的发光器件。

公开(公告)号：US20060227546A1

公开(公告)日：2006-10-12

申请号：US11282551

申请日：2005-11-17

申请人： Terence Yeo ,  Zane Coleman

发明人： Terence Yeo ,  Zane Coleman

IPC分类号： B60Q1/26

CPC分类号： G02B6/0041 ,  F21S6/00 ,  F21S8/08 ,  F21V1/00 ,  F21V3/049 ,  F21V2200/10 ,  F21V2200/20 ,  F21W2131/103 ,  F21Y2105/00 ,  F21Y2115/10 ,  G02B5/0242 ,  G02B5/0257 ,  G02B5/0284 ,  G02B6/0051 ,  G02B6/0055 ,  G02B27/0988

摘要： An enhanced light fixture containing a volumetric, anisotropic diffuser to control the spatial luminance uniformity and angular spread of light from the light fixture is disclosed. The anisotropic diffuser provides increased spatial luminance uniformity and efficient control over the illuminance such that power reductions, reduced cost or reduced size may be achieved. The anisotropic diffuser contains one or more regions of asymmetrically shaped light scattering particles. The spread of illumination of light from a light emitting source can be efficiently controlled by using a thin, low cost, volumetric, asymmetric diffuser to direct the light in the desired direction. This allows the reduction in number of light sources, a reduction in power requirements, or a more tailored illumination. When the anisotropic diffuser is used in combination with a waveguide to extract light, the light is efficiently coupled out of the waveguide in a thin, planar surface. This transmissive diffuser can be coupled to a reflecting element such that the resulting combination is a light reflecting element with a desired asymmetric light scattering profile.

摘要翻译： 公开了一种增强型灯具，其包含用于控制来自灯具的光的空间亮度均匀性和角度扩展的体积式各向异性扩散器。 各向异性漫射器提供增加的空间亮度均匀性和对照度的有效控制，使得可以实现功率降低，降低的成本或减小的尺寸。 各向异性扩散器包含一个或多个不对称形状的光散射颗粒区域。 通过使用薄的，低成本的，体积不对称的扩散器，可以有效地控制来自发光源的光的照射扩散，以将光引向所需的方向。 这允许减少光源的数量，降低功率需求，或者更适合照明。 当各向异性扩散器与波导组合使用以提取光时，光在薄的平坦表面中被有效地耦合到波导外。 该透射漫射器可以耦合到反射元件，使得所得到的组合是具有期望的不对称光散射分布的光反射元件。