发明名称 |
SIGN COMPRISING A FILM-BASED LIGHTGUIDE |
摘要 |
A device includes a light transmitting film defining a lightguide region. A first region is defined within the lightguide region representing a region of one or more of an indicia, a graphic, and an image that is visible by light extraction when illuminated by light propagating within the film in a waveguide condition, wherein the first region includes a plurality of light extraction features that redirect a portion of light traveling within the film in a waveguide condition out of a first face of the opposing faces of the film in the first region, and the first region has a luminance less than 50 cd/m2 when illuminated with 1000 lux of diffuse light when disposed on an opening of a light trap box comprising a plurality of walls and a black, light absorbing material lining the plurality of walls. A method of making or producing a device is also disclosed. |
申请公布号 |
WO2011130720(A3) |
申请公布日期 |
2012.01.05 |
申请号 |
WO2011US32797 |
申请日期 |
2011.04.15 |
申请人 |
FLEX LIGHTING II, LLC;NICHOL, ANTHONY, J.;COLEMAN, ZANE |
发明人 |
NICHOL, ANTHONY, J.;COLEMAN, ZANE |
分类号 |
G02B6/10 |
主分类号 |
G02B6/10 |
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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