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    • 3. 发明申请
    • THIN LIGHT GUIDING PLATE AND METHODS OF MANUFACTURING
    • 薄光导板及其制造方法
    • US20110095442A1
    • 2011-04-28
    • US12983632
    • 2011-01-03
    • Jehuda GREENERCharles C. AndersonJunwon LeeHerong LeiMichael R. LandryTseng-En HuPeter T. Aylward
    • Jehuda GREENERCharles C. AndersonJunwon LeeHerong LeiMichael R. LandryTseng-En HuPeter T. Aylward
    • G02B6/36B29D11/00
    • G02B6/0053G02B6/0038G02B6/0065
    • 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.
    • 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。
    • 8. 发明授权
    • Free-form lens design to apodize illuminance distribution
    • 自由形式的镜头设计,以诠释照度分布
    • US08070326B2
    • 2011-12-06
    • US12712610
    • 2010-02-25
    • Junwon Lee
    • Junwon Lee
    • F21V7/00
    • G02B19/0014F21V5/04F21V5/08F21W2131/103G02B19/0061
    • A lens that angularly redistributes light from an LED is disclosed. The desired illuminance (power per area) pattern for an LED/lens combination has a relatively flat center, a knee, and a gradual tail. By overlapping adjacent combinations' tails, the resulting illuminance pattern may be generally uniform, with relatively loose tolerances on LED/lens placement and performance. The lens has a proximal face with a concave spherical indentation with its center at the light source. The lens's distal face has a “center thickness” (CT) on-axis, a peak thickness away from a longitudinal axis of about 1.0 to 1.2 times the CT, a radius at which the peak thickness occurs of about 0.5 to 1.0 times the CT, a radius at which the thickness returns to the CT of about 1.1 to 1.5 times the CT, and a radius (maximum lateral extent) of the lens of about 1.6 to 1.9 times the CT.
    • 公开了一种从LED角度重新分布光的透镜。 LED /镜头组合的期望照度(功率/面积)图案具有相对平坦的中心,膝盖和逐渐的尾巴。 通过重叠相邻的组合尾部,所得到的照度图案可以是大致均匀的,在LED /透镜放置和性能上具有相对宽松的公差。 透镜具有近端面,凹面球形凹陷的中心位于光源处。 透镜的远端面轴线具有“中心厚度”(CT),远离纵轴的峰值厚度约为CT的1.0至1.2倍,峰值出现的半径为CT的0.5至1.0倍 ,厚度返回到CT的约1.1倍至1.5倍的半径,镜片的半径(最大横向范围)为CT的约1.6至1.9倍。