Back-light unit having prism sheet including reflective...

Details Back-light unit having prism sheet including reflective... Back-light unit having prism sheet including reflective...

2008-05-08

2010-02-16

Negron, Ismael (Department: 2885)

Illumination

Edge lighted panel

Light modifier with emission face combined with light guide...

C362S311060, C362S339000, C362S246000, C349S064000

Reexamination Certificate

active

07661864

ABSTRACT:
A prism sheet changes a direction of light propagation by reflecting light launched with an intensity distribution of a predetermined angle range wherein: a reflective surface for perfect reflection of light includes a higher order surface constructed by at least a small curvature surface and a surface different from the small curvature surface.

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patent: PUPA10-261309 (1998-09-01), None
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patent: PUPA2000-147495 (2000-05-01), None
patent: PUPA2000-294019 (2000-10-01), None

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