公开(公告)号：WO2010080775A1

公开(公告)日：2010-07-15

申请号：PCT/US2010/020176

申请日：2010-01-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  LIU, YuFeng, ,  YUST, David, T., ,  JORDAN, Myron, K., ,  OUDERKIRK, Andrew, J.,

Inventor： LIU, YuFeng, ,  YUST, David, T., ,  JORDAN, Myron, K., ,  OUDERKIRK, Andrew, J.,

IPC: G03B21/56

CPC classification number: G03B21/56

Abstract: A light diffusing optical construction is disclosed. The optical construction includes an asymmetric optical diffuser that scatters light in a first direction with a first viewing angle A H, and in a second direction orthogonal to the first direction with a second viewing angle A V . The ratio A H /A V is at least about 2. The optical construction also includes a substantially specular reflector that reflects light that is not scattered by the asymmetric optical diffuser. The substantially specular reflector has a first average reflectance R o in the visible at a substantially zero incident angle and a second average reflectance R 45 in the visible at a substantially 45 degree incident angle. The ratio R o /R 45 is at least about 1.5. The optical construction also includes a light absorbing layer that absorbs light that is not reflected by the specular reflector.

Abstract translation: 公开了一种光散射光学结构。 该光学结构包括一个不对称的光学漫射器，其以第一视角AH在第一方向散射光，并在第二方向上以第二视角AV与第一方向垂直。 比例AH / AV至少为2.光学结构还包括基本上镜面的反射器，其反射不被非对称光学漫射器散射的光。 基本上镜面的反射器在可见光中具有基本为零入射角的第一平均反射率Ro和可见光以大致45度入射角的第二平均反射率R45。 比率Ro / R45至少约为1.5。 光学结构还包括吸收未被镜面反射体反射的光的光吸收层。

公开(公告)号：WO2008144656A3

公开(公告)日：2009-05-28

申请号：PCT/US2008064133

申请日：2008-05-19

Applicant: 3M INNOVATIVE PROPERTIES CO ,  WEBER MICHAEL F ,  HEBRINK TIMOTHY J ,  NEVITT TIMOTHY J ,  WHEATLEY JOHN A ,  SCHARDT CRAIG R ,  BIERNATH ROLF W ,  BRYAN WILLIAM J ,  OUDERKIRK ANDREW J ,  FREIER DAVID G ,  JORDAN MYRON K ,  DERKS KRISTOPHER J ,  YANG ZHAOHUI ,  KIVEL EDWARD J

Inventor： WEBER MICHAEL F ,  HEBRINK TIMOTHY J ,  NEVITT TIMOTHY J ,  WHEATLEY JOHN A ,  SCHARDT CRAIG R ,  BIERNATH ROLF W ,  BRYAN WILLIAM J ,  OUDERKIRK ANDREW J ,  FREIER DAVID G ,  JORDAN MYRON K ,  DERKS KRISTOPHER J ,  YANG ZHAOHUI ,  KIVEL EDWARD J

IPC: G02F1/13357 ,  F21V8/00 ,  G02B5/30 ,  G02B6/00 ,  G02B27/28

CPC classification number: 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

Abstract: A front reflector (610) in a hollow cavity backlight (600) has asymmetrically reflective properties due to a film of alternating polymer layers recycling the light. The backlight addresses the need for thinner, lighter, large-area devices with fewer components but defined output polarisation and adequate viewing angles. A uniform light distribution in the guide and a directed output light (662) distribution are necessary. A front reflector (610) has a partial reflectivity for one polarisation state (662a) and a high reflectivity for the orthogonal state (666), wherein the partial reflectivities of the desired output polarisation state differ according to according to incident s- and p- polarisation states. There is also an asymmetric front reflector reflecting all light of one incidence angle distribution but partially reflecting & transmitting other light. A conversion structure in the cavity converts light of the first distribution into the second distribution. Application: displays or general lighting.

Abstract translation: 中空腔背光（600）中的前反射器（610）由于交替聚合物层的膜再循环光而具有不对称的反射特性。 该背光解决了对更薄，更轻，大面积的设备的需求，其中组件较少，但定义了输出极化和足够的视角。 引导中的均匀光分布和有向输出光（662）分布是必要的。 前反射器（610）对于一个偏振状态（662a）具有部分反射率和对于正交状态的高反射率（666），其中期望的输出偏振状态的部分反射率根据入射的s-和p- 极化状态。 还有一个不对称的前反射器反映一个入射角分布的所有光，但部分反射和透射其他光。 空腔中的转换结构将第一分布的光转换成第二分布。 应用：显示屏或一般照明。

公开(公告)号：WO2008144656A2

公开(公告)日：2008-11-27

申请号：PCT/US2008/064133

申请日：2008-05-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  WEBER, Michael F. ,  HEBRINK, Timothy, J. ,  NEVITT, Timothy, J. ,  WHEATLEY, John, A. ,  SCHARDT, Craig, R. ,  BIERNATH, Rolf, W. ,  BRYAN, William, J. ,  OUDERKIRK, Andrew, J. ,  FREIER, David, G. ,  JORDAN, Myron, K. ,  DERKS, Kristopher, J. ,  YANG, Zhaohui ,  KIVEL, Edward, J.

Inventor： WEBER, Michael F. ,  HEBRINK, Timothy, J. ,  NEVITT, Timothy, J. ,  WHEATLEY, John, A. ,  SCHARDT, Craig, R. ,  BIERNATH, Rolf, W. ,  BRYAN, William, J. ,  OUDERKIRK, Andrew, J. ,  FREIER, David, G. ,  JORDAN, Myron, K. ,  DERKS, Kristopher, J. ,  YANG, Zhaohui ,  KIVEL, Edward, J.

IPC: G02F1/13357 ,  G02B6/00 ,  G02B5/30 ,  F21V8/00 ,  G02B27/28

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。