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    • 2. 发明申请
    • TAPERED MULTILAYER LUMINAIRE DEVICE
    • WO1995027915A1
    • 1995-10-19
    • PCT/US1995004424
    • 1995-04-10
    • NIOPTICS CORPORATION
    • NIOPTICS CORPORATIONWINSTON, RolandHOLMAN, Robert, L.JACOBSON, Benjamin, A.EMMONS, Robert, M.
    • G02B06/26
    • G02B6/0046G02B6/0001G02B6/005G02B6/0056G02F1/133536G02F1/133615G02F1/13362G02F2001/13355
    • An optical device (10) for collecting light and selectively outputting or concentrating the light. A wedge layer (12) has an optical index of refraction n1, and top (14), bottom (16) and side surfaces (18) intersecting to define an angle of inclination. A back surface (20) spans the top (14), bottom (16) and side surface (18). A first layer (28) is coupled to the bottom surface (16) of the layer (12) and has an index of refraction n2. The first layer (28) index n2 causes light input (24) through the back surface (20) of the layer (12) to be preferentially output into the first layer (28). A second layer (30) is coupled to the bottom (16) of the first layer (28) and selectively causes output of light into ambient. Additional layers, such as a light polarization layer (216), a polarization converting layer (226) and a post LCD diffuser layer (230), can be used to make preferential use of polarized light or diffuse light having passed through the LCD layer to enhance viewing of the output light.
    • 一种用于收集光并选择性地输出或集中光的光学装置(10)。 楔形层(12)具有光学折射率n1,和顶部(14),底部(16)和侧面(18)相交以限定倾斜角。 后表面(20)跨越顶部(14),底部(16)和侧面(18)。 第一层(28)耦合到层(12)的底表面(16)并且具有折射率n2。 第一层(28)索引n2使通过层(12)的背表面(20)的光输入(24)优先地输出到第一层(28)中。 第二层(30)耦合到第一层(28)的底部(16),并且选择性地使得光的输出进入环境。 可以使用诸如光偏振层(216),偏振转换层(226)和后LCD漫射层(230)的附加层来优先使用通过LCD层的偏振光或漫射光 增强对输出光的观察。