公开(公告)号：US20090040771A1

公开(公告)日：2009-02-12

申请号：US11890969

申请日：2007-08-08

申请人： Jehuda Greener ,  Charles C. Anderson ,  Junwon Lee ,  Herong Lei ,  Michael R. Landry ,  Tseng-En Hu ,  Peter F. Aylward

发明人： Jehuda Greener ,  Charles C. Anderson ,  Junwon Lee ,  Herong Lei ,  Michael R. Landry ,  Tseng-En Hu ,  Peter F. Aylward

IPC分类号： F21V13/02 ,  B29D11/00

CPC分类号： G02B6/0053 ,  G02B6/0038 ,  G02B6/0065

摘要： The present invention provides a composite light guiding plate comprising a light guiding layer comprising an incident face for receiving light from at least one light source, a light guiding output surface that is also generally orthogonal to the incident face, a featured surface, opposite the light-guiding output surface and generally orthogonal to the input face for redirecting light through the light guiding output surface. Further, the featured surface comprises a plurality of rows of linear prismatic structures extended in a length direction that is substantially perpendicular to the incident face and having height and width dimensions of 10 to 200 microns and wherein the length-to-width aspect ratio of the linear prismatic structures is greater than 100:1 the thickness of the light guiding layer is less than 1 mm. Further, the plate is formed from polymeric materials comprising polyesters, amorphous polyesters, polyarylates, polycarbonates, polyamides, polyether-amides, polyamide-imides, polyimides, polyetherimides, cyclic olefin polymers, impact-modified polymethacrylates, polyacrylates, polyacrylonitrile, polystyrenes, polyethers, cellulosics, sulfur-containing polymers and blends or alloys of two or more polymers or copolymers thereof. Additionally, the plate comprises a light extraction layer comprising an input surface having a plurality of protruding light extraction features that have tips that are bonded to the light-guiding output surface of the light guiding layer and provide optical contact between the light guiding and light extraction layers and an illumination output surface for providing light output from the composite illumination plate. Further, the thickness of the light extraction layer is less than 1 mm and wherein one or more channels of air or other gas are sandwiched between the light guiding layer and the light extraction layer.

摘要翻译： 本发明提供了一种复合导光板，其包括导光层，该导光层包括用于接收来自至少一个光源的光的入射面，也大致正交于入射面的光导输出表面，与光相反的特征表面 引导输出表面并且大致垂直于输入面，用于使光通过导光输出表面。 此外，特征表面包括在长度方向上延伸的多行线性棱镜结构，其大致垂直于入射面并且具有10至200微米的高度和宽度尺寸，并且其中， 线性棱镜结构大于100:1，导光层的厚度小于1mm。 此外，该板由聚酯，无定形聚酯，聚芳酯，聚碳酸酯，聚酰胺，聚醚酰胺，聚酰胺 - 酰亚胺，聚酰亚胺，聚醚酰亚胺，环烯烃聚合物，冲击改性聚甲基丙烯酸酯，聚丙烯酸酯，聚丙烯腈，聚苯乙烯，聚醚， 纤维素，含硫聚合物和两种或多种聚合物或其共聚物的共混物或合金。 另外，所述板包括光提取层，所述光提取层包括输入表面，所述输入表面具有多个突出的光提取特征，所述多个突出的光提取特征具有接合到所述光导层的光导输出表面的尖端并且在所述导光和光提取之间提供光学接触 层和用于提供从复合照明板的光输出的照明输出表面。 此外，光提取层的厚度小于1mm，并且其中空气或其它气体的一个或多个通道夹在导光层和光提取层之间。