PRISM GLASS, ITS MANUFACTURING METHOD AND PRISM GLASS CONSTRUCTION BODY
PROBLEM TO BE SOLVED: To provide a prism glass, its manufacturing method and a prism glass, having a short manufacturing period, easy color management and less equipment expenses while a necessary lighting can be obtained even colored and emission intensity is not degraded even when a transmissivity...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a prism glass, its manufacturing method and a prism glass, having a short manufacturing period, easy color management and less equipment expenses while a necessary lighting can be obtained even colored and emission intensity is not degraded even when a transmissivity through a lighting surface is made larger. SOLUTION: A prism glass 10 of closed-end shape without lid is composed of a top plate 10a having translucency, a side wall 10c extending downward from the periphery of the top plate 10a and an annular bottom surface 10f for the side wall 10c. Furthermore, a resin layer 11 containing a luminescent substance is formed on an inner surface 10b of the top plate 10a. COPYRIGHT: (C)2007,JPO&INPIT |
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