发明名称 |
BRIGHTNESS ENHANCEMENT FILM WITH LIGHT CONCENTRATORS |
摘要 |
<p>A brightness enhancement article (30) provides light from a two-dimensional surface. The brightness enhancement article (30) has a plurality of light collecting structures (32), wherein each light collecting structure (32) is longitudinally extended in a length direction along the surface. Each light collecting structure (32) has an input aperture (33) optically coupled to a light-providing surface and an output aperture (35) distal from the input aperture (33), wherein the output aperture (35) has a surface area that is larger than the surface area of the input aperture (33). A pair of curved side walls (38) extend from the output aperture (35) toward the input aperture (33). In a cross section taken orthogonally with respect to the length direction, the curved side walls (38) approximate a parabolic curvature.</p> |
申请公布号 |
WO2005121850(A1) |
申请公布日期 |
2005.12.22 |
申请号 |
WO2005US17903 |
申请日期 |
2005.05.23 |
申请人 |
EASTMAN KODAK COMPANY;LEE, JUNWON;KESSLER, DAVID |
发明人 |
LEE, JUNWON;KESSLER, DAVID |
分类号 |
F21V7/04;F21V8/00;G02B6/00;(IPC1-7):G02B6/00 |
主分类号 |
F21V7/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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