公开(公告)号：US08922733B2

公开(公告)日：2014-12-30

申请号：US13502060

申请日：2010-10-22

申请人： John A. Wheatley ,  Tao Liu ,  Encai Hao ,  William Blake Kolb ,  Michael Benton Free

发明人： John A. Wheatley ,  Tao Liu ,  Encai Hao ,  William Blake Kolb ,  Michael Benton Free

IPC分类号： G02F1/1335 ,  F21V8/00

CPC分类号： F21V13/14 ,  F21V9/14 ,  G02B6/005 ,  G02B6/0051 ,  G02B6/0096 ,  G02F1/133602

摘要： Light sources are disclosed. A disclosed light source includes an optically reflective cavity that includes an input port for receiving light and an output port for transmitting light, a lamp that is disposed at the input port, and an optical stack that is disposed at the output port. The optical stack includes a forward scattering optical diffuser that is disposed at the output port and has an optical haze that is not less than about 20%, and an optical film that is disposed on the optical diffuser. The optical film enhance total internal reflection at the interface between the optical film and the optical diffuser. The optical film has an index of refraction that is not greater than about 1.3 and an optical haze that is not greater than about 5%. The optical stack also includes a reflective polarizer layer that is disposed on the optical film. Substantial portions of each two neighboring major surfaces in the optical stack are in physical contact with each other.

摘要翻译： 公开了光源。 所公开的光源包括光反射腔，其包括用于接收光的输入端口和用于传输光的输出端口，设置在输入端口处的灯以及设置在输出端口处的光学堆叠。 光学堆叠包括设置在输出端口并具有不小于约20％的光学雾度的前向散射光学漫射器，以及设置在光学漫射器上的光学膜。 光学膜增强了在光学膜和光学扩散器之间的界面处的全内反射。 光学膜的折射率不大于约1.3，光学雾度不大于约5％。 光学堆叠还包括设置在光学膜上的反射偏振器层。 光学堆叠中每两个相邻的主要表面的实质部分彼此物理接触。

公开(公告)号：US20120287677A1

公开(公告)日：2012-11-15

申请号：US13511381

申请日：2010-12-01

申请人： John A. Wheatley ,  Tao Liu ,  Encai Hao

发明人： John A. Wheatley ,  Tao Liu ,  Encai Hao

IPC分类号： F21V8/00

CPC分类号： G02B6/0056 ,  G02B6/0018 ,  G02B6/0021 ,  G02B6/0035 ,  G02B6/0043 ,  G02B6/005 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0068 ,  G02B6/0073 ,  G02B6/0075 ,  G02B6/008 ,  G02B2207/107

摘要： Optical constructions use a low index of refraction layer (120) disposed between a low absorption layer (101) and a high absorption layer (103) to increase confinement of light to the low absorption region of the optical constructions. Low index layers can be used in optical constructions that have multi-tiered light confinement. In these constructions, a first tier of reflection is provided when light is reflected at the surface of a low index optical film which is disposed directly or indirectly on a light guide (110). A second tier of reflection occurs at the surface of a light redirecting film having appropriately oriented refractive structures.

摘要翻译： 光学结构使用设置在低吸收层（101）和高吸收层（103）之间的低折射率折射率层（120），以增加光束对光学结构的低吸收区域的限制。 低折射率层可用于具有多层光限制的光学结构中。 在这些结构中，当在直接或间接设置在导光体（110）上的低折射率光学膜的表面反射光时，提供第一层反射。 在具有适当取向的折射结构的光重定向膜的表面上发生第二层反射。

公开(公告)号：US08950924B2

公开(公告)日：2015-02-10

申请号：US13511381

申请日：2010-12-01

申请人： John A. Wheatley ,  Tao Liu ,  Encai Hao

发明人： John A. Wheatley ,  Tao Liu ,  Encai Hao

IPC分类号： F21V8/00

CPC分类号： G02B6/0056 ,  G02B6/0018 ,  G02B6/0021 ,  G02B6/0035 ,  G02B6/0043 ,  G02B6/005 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0068 ,  G02B6/0073 ,  G02B6/0075 ,  G02B6/008 ,  G02B2207/107

摘要： Optical constructions use a low index of refraction layer (120) disposed between a low absorption layer (101) and a high absorption layer (103) to increase confinement of light to the low absorption region of the optical constructions. Low index layers can be used in optical constructions that have multi-tiered light confinement. In these constructions, a first tier of reflection is provided when light is reflected at the surface of a low index optical film which is disposed directly or indirectly on a light guide (110). A second tier of reflection occurs at the surface of a light redirecting film having appropriately oriented refractive structures.

摘要翻译： 光学结构使用设置在低吸收层（101）和高吸收层（103）之间的低折射率折射率层（120），以增加光束对光学结构的低吸收区域的限制。 低折射率层可用于具有多层光限制的光学结构中。 在这些结构中，当在直接或间接设置在导光体（110）上的低折射率光学膜的表面反射光时，提供第一层反射。 在具有适当取向的折射结构的光重定向膜的表面上发生第二层反射。

公开(公告)号：US08891038B2

公开(公告)日：2014-11-18

申请号：US13264354

申请日：2010-04-14

申请人： William D. Coggio ,  John A. Wheatley ,  Tao Liu ,  Brian W. Ostlie ,  Encai Hao ,  William Blake Kolb ,  Qingbing Wang ,  Michael Benton Free ,  Michael L. Steiner ,  Scott M. Tapio

发明人： William D. Coggio ,  John A. Wheatley ,  Tao Liu ,  Brian W. Ostlie ,  Encai Hao ,  William Blake Kolb ,  Qingbing Wang ,  Michael Benton Free ,  Michael L. Steiner ,  Scott M. Tapio

IPC分类号： G02F1/1335 ,  F21V8/00 ,  G02B5/02

CPC分类号： G02B6/0051 ,  G02B5/02 ,  G02B6/0056 ,  G02B2207/107

摘要： Lightguide is disclosed. The lightguide includes a light guiding layer for propagating light by total internal reflection, and an optical film that is disposed on the light guiding layer. The optical film includes a plurality of voids, an optical haze that is not less than about 30%, and a porosity that is not less than about 20%. Substantial portions of each two neighboring major surfaces in the lightguide are in physical contact with each other.

摘要翻译： 光导被披露。 光导包括用于通过全内反射传播光的导光层和设置在导光层上的光学膜。 光学膜包括多个空隙，不小于约30％的光学雾度和不小于约20％的孔隙率。 导光板中每两个相邻的主要表面的实质部分彼此物理接触。

公开(公告)号：US20120200801A1

公开(公告)日：2012-08-09

申请号：US13502060

申请日：2010-10-22

申请人： John A. Wheatley ,  Tao Liu ,  Encai Hao ,  William Blake Kolb ,  Michael Benton Free

发明人： John A. Wheatley ,  Tao Liu ,  Encai Hao ,  William Blake Kolb ,  Michael Benton Free

IPC分类号： G02F1/1335 ,  F21V9/14

CPC分类号： F21V13/14 ,  F21V9/14 ,  G02B6/005 ,  G02B6/0051 ,  G02B6/0096 ,  G02F1/133602

摘要： Light sources are disclosed. A disclosed light source includes an optically reflective cavity that includes an input port for receiving light and an output port for transmitting light, a lamp that is disposed at the input port, and an optical stack that is disposed at the output port. The optical stack includes a forward scattering optical diffuser that is disposed at the output port and has an optical haze that is not less than about 20%, and an optical film that is disposed on the optical diffuser. The optical film enhance total internal reflection at the interface between the optical film and the optical diffuser. The optical film has an index of refraction that is not greater than about 1.3 and an optical haze that is not greater than about 5%. The optical stack also includes a reflective polarizer layer that is disposed on the optical film. Substantial portions of each two neighboring major surfaces in the optical stack are in physical contact with each other.

摘要翻译： 公开了光源。 所公开的光源包括光反射腔，其包括用于接收光的输入端口和用于传输光的输出端口，设置在输入端口处的灯以及设置在输出端口处的光学堆叠。 光学堆叠包括设置在输出端口并具有不小于约20％的光学雾度的前向散射光学漫射器，以及设置在光学漫射器上的光学膜。 光学膜增强了在光学膜和光学扩散器之间的界面处的全内反射。 光学膜的折射率不大于约1.3，光学雾度不大于约5％。 光学堆叠还包括设置在光学膜上的反射偏振器层。 光学堆叠中每两个相邻的主要表面的实质部分彼此物理接触。

公开(公告)号：US20120026431A1

公开(公告)日：2012-02-02

申请号：US13264354

申请日：2010-04-14

申请人： William D. Coggio ,  John A. Wheatley ,  Tao Liu ,  Brian W. Ostlie ,  Encai Hao ,  William Blake Kolb ,  Qingbing Wang ,  Michael Benton Free ,  Brant U. Kolb ,  Michael L. Steiner ,  Scott M. Tapio

发明人： William D. Coggio ,  John A. Wheatley ,  Tao Liu ,  Brian W. Ostlie ,  Encai Hao ,  William Blake Kolb ,  Qingbing Wang ,  Michael Benton Free ,  Brant U. Kolb ,  Michael L. Steiner ,  Scott M. Tapio

IPC分类号： G02F1/13357 ,  F21V7/04 ,  F21V9/14 ,  F21V8/00

CPC分类号： G02B6/0051 ,  G02B5/02 ,  G02B6/0056 ,  G02B2207/107

摘要： A lightguide (3690) is disclosed. The lightguide includes a light guiding layer (3610) for propagating light by total internal reflection, and an optical film (3640) that is disposed on the light guiding layer. The optical film includes a plurality of voids, an optical haze that is not less than about 30%, and a porosity that is not less than about 20%. Substantial portions of each two neighboring major surfaces (3614, 3642) in the lightguide are in physical contact with each other. The lightguide can be used as blacklight in a display system.

摘要翻译： 公开了一种光导（3690）。 光导包括用于通过全内反射传播光的导光层（3610）和设置在导光层上的光学膜（3640）。 光学膜包括多个空隙，不小于约30％的光学雾度和不小于约20％的孔隙率。 光导中每两个相邻主表面（3614,3642）的实质部分彼此物理接触。 光导可以用作显示系统中的黑光。

公开(公告)号：US09541698B2

公开(公告)日：2017-01-10

申请号：US12918549

申请日：2009-02-18

申请人： John A. Wheatley ,  Michael A. Meis ,  Rolf W. Biernath ,  Philip E. Watson ,  Tao Liu

发明人： John A. Wheatley ,  Michael A. Meis ,  Rolf W. Biernath ,  Philip E. Watson ,  Tao Liu

IPC分类号： F21V7/04 ,  F21V8/00

CPC分类号： G02B6/0046 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0096

摘要： A backlight that includes a front reflector (120) and a back reflector (130) that form a hollow light recycling cavity including an output surface (104) is disclosed. At least a portion of the back reflector is non-parallel to the front reflector. The backlight also includes at least one semi-specular element disposed within the hollow light recycling cavity, and one or more light sources (140) disposed to emit light into the hollow light recycling cavity, where the one or more light sources are configured to emit light into the hollow light recycling cavity over a limited angular range.

摘要翻译： 公开了一种包括形成包括输出表面（104）的空心光循环腔的前反射器（120）和后反射器（130）的背光源。 后反射器的至少一部分不平行于前反射器。 背光还包括设置在中空光循环腔内的至少一个半镜面元件，以及设置成将光发射到中空光循环腔中的一个或多个光源（140），其中一个或多个光源被配置为发射 在有限的角度范围内将光照射进空心光回收腔。

公开(公告)号：US09057843B2

公开(公告)日：2015-06-16

申请号：US13501860

申请日：2010-10-22

申请人： Michael F. Weber ,  Timothy J. Nevitt ,  Tao Liu ,  John A. Wheatley

发明人： Michael F. Weber ,  Timothy J. Nevitt ,  Tao Liu ,  John A. Wheatley

IPC分类号： G02F1/1335 ,  G02F1/1333 ,  G02B5/30 ,  F21V8/00

CPC分类号： G02B5/305 ,  G02B6/005 ,  G02F1/13362

摘要： A film construction (610) includes a group of microlayers that reflect normally incident light polarized along a first axis more than normally incident light polarized along a second axis. The microlayers are arranged into optical repeat units (ORUs) that have a layer thickness distribution along a thickness axis perpendicular to the first and second axes that provides the group of microlayers with an intermediate reflectivity over an extended reflection band for a given incidence condition. The ORUs include thinner ORUs whose thicknesses are less than an average thickness, and thicker ORUs whose thicknesses are greater than the average thickness. The group of microlayers is optically immersed in a medium having a refractive index greater than air, such that “supercritical light” can propagate through the microlayers. The microlayers are oriented such that, on average, the thinner ORUs are closer than the thicker ORUs to an output surface of the construction. By “supercritical light” is meant that travels through the film at an angle that is more oblique than can be achieved by illumination from air using a flat, smooth air/film interface.

摘要翻译： 膜结构（610）包括一组微层，其反射正常入射的光沿着第一轴偏振，而不是沿着第二轴偏振的正常入射光。 微层布置成光学重复单元（ORU），其具有沿着垂直于第一和第二轴线的厚度轴线的层厚度分布，其为给定的入射条件在延伸的反射带上提供中间反射率的微层。 ORU包括厚度小于平均厚度的更薄的ORU，以及厚度大于平均厚度的较厚ORU。 微组织光学地浸入折射率大于空气的介质中，使得“超临界光”可以传播通过微层。 微层的取向使得平均来说，更薄的ORU比较厚的ORU更接近于结构的输出表面。 “超临界光”是指以比通过使用平坦，平滑的空气/膜界面的空气照明可以实现的倾斜更倾斜的角度穿过膜。

公开(公告)号：US20130022315A1

公开(公告)日：2013-01-24

申请号：US13634583

申请日：2011-04-11

申请人： William F. Edmonds ,  Tao Liu ,  John F. Van Deriofske III ,  John A. Wheatley

发明人： William F. Edmonds ,  Tao Liu ,  John F. Van Deriofske III ,  John A. Wheatley

IPC分类号： G02B5/30 ,  G02B6/26

CPC分类号： G02B5/045 ,  F21V11/00 ,  G02B6/0053 ,  G02F1/133606 ,  G02F2001/133607 ,  Y10T428/24612

摘要： Optical stack is disclosed. The optical stack includes a first optical stack that includes, a first optical adhesive layer, and a reflective polarizer layer that is disposed on the first optical adhesive layer. The reflective polarizer layer substantially reflects light of a first polarization state and substantially transmits light of a second polarization state orthogonal to the first polarization state. The optical stack also includes a second optical stack that includes a second optical adhesive layer, a low index layer that is disposed on the second optical adhesive layer and includes a plurality of voids dispersed in a binder, and a light directing film that is disposed on the low index layer and includes a plurality of unitary discrete structures. Portions of each unitary discrete structure penetrate into the first optical adhesive layer. Portions of each unitary discrete structure do not penetrate into the first optical adhesive layer. Each unitary discrete structure defines a penetration depth and a penetration base at the interface between the penetrating and non-penetrating portions of the unitary discrete structure. The penetration base has a minimum penetration base dimension. The plurality of unitary discrete structures has an average penetration depth and an average minimum penetration base dimension. The ratio of the average penetration depth to the average minimum penetration base dimension is at least 1.5. The peel strength between the first and second optical stacks is greater than about 30 grams/inch.

摘要翻译： 公开了光堆叠。 光学堆叠包括第一光学堆叠，其包括第一光学粘合剂层和设置在第一光学粘合剂层上的反射偏振器层。 反射型偏振层基本上反射第一偏振态的光，并且基本上透射与第一偏振状态正交的第二偏振状态的光。 光学堆叠还包括第二光学堆叠，其包括第二光学粘合剂层，设置在第二光学粘合剂层上并包括分散在粘合剂中的多个空隙的低折射率层，以及设置在 低折射率层并且包括多个单一离散结构。 每个单一离散结构的部分渗入第一光学粘合剂层。 每个单一离散结构的部分不会渗透到第一光学粘合剂层中。 每个单一离散结构在整体离散结构的穿透部分和非穿透部分之间的界面处限定穿透深度和穿透基部。 穿透底座具有最小穿透基座尺寸。 多个单一离散结构具有平均穿透深度和平均最小穿透基础尺寸。 平均渗透深度与平均最小穿透基础尺寸之比至少为1.5。 第一和第二光学叠层之间的剥离强度大于约30克/英寸。

公开(公告)号：US20110096529A1

公开(公告)日：2011-04-28

申请号：US12918549

申请日：2009-02-18

申请人： John A. Wheatley ,  Michael A. Meis ,  Rolf W. Biernath ,  Philip E. Watson ,  Tao Liu

发明人： John A. Wheatley ,  Michael A. Meis ,  Rolf W. Biernath ,  Philip E. Watson ,  Tao Liu

IPC分类号： G09F13/08

CPC分类号： G02B6/0046 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0096

摘要： A backlight that includes a front reflector (120) and a back reflector (130) that form a hollow light recycling cavity including an output surface (104) is disclosed. At least a portion of the back reflector is non-parallel to the front reflector. The backlight also includes at least one semi-specular element disposed within the hollow light recycling cavity, and one or more light sources (140) disposed to emit light into the hollow light recycling cavity, where the one or more light sources are configured to emit light into the hollow light recycling cavity over a limited angular range.

摘要翻译： 公开了一种包括形成包括输出表面（104）的空心光循环腔的前反射器（120）和后反射器（130）的背光源。 后反射器的至少一部分不平行于前反射器。 背光还包括设置在中空光循环腔内的至少一个半镜面元件，以及设置成将光发射到中空光循环腔中的一个或多个光源（140），其中一个或多个光源被配置为发射 在有限的角度范围内将光照射进空心光回收腔。