Surface lighting device
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United States of America Patent
Stats
-
Jul 22, 2003
Issued Date -
N/A
app pub date -
Dec 12, 2001
filing date -
Dec 12, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A surface lighting device includes a light guiding plate having a light incident surface formed at one end surface and a light exit surface formed on a front surface thereof; an elongated light source facing the light incident surface; a light source reflector which reflects light emitted from the elongated light source toward the light incident surface; a prism sheet, wherein an array of minute parallel prism projections is formed on a surface thereof, the array of minute parallel prism projections facing the light exit surface; a regular reflection type reflector facing a rear surface of the light guiding plate; a light guiding device for guiding light emitted from the elongated light source to two portions of the light incident surface which respectively face opposite ends of the elongated light source; and a diffuser, formed on the light incident surface, which diffuses incident light thereon.
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International Classification(s)
Cited Art Landscape
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