Active solid-state devices (e.g. – transistors – solid-state diode – Non-single crystal – or recrystallized – semiconductor... – Field effect device in non-single crystal – or...
Reexamination Certificate
2005-06-14
2005-06-14
Pham, Long (Department: 2814)
Active solid-state devices (e.g., transistors, solid-state diode
Non-single crystal, or recrystallized, semiconductor...
Field effect device in non-single crystal, or...
C257S088000, C438S030000, C438S031000, C438S032000, C438S042000
Reexamination Certificate
active
06906348
ABSTRACT:
An illumination device includes a light source composed of a light emitting element and an intermediate light guide, and a light guide plate that receives light from the light source through a light incident face and that emits the light propagating therein from an emergent surface. A reflecting surface of the light guide plate has a plurality of prism grooves formed in stripes in plan view, each prism groove having a gently inclined face and a sharply inclined face inclined more sharply than the gently inclined face. A θ2-coefficient, which is the product of the number of the sharply inclined faces per unit length of the light guide plate, and the length of the sharply inclined faces, is increased away from the light source in the light guide plate.
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Copy of Search Report dated Jan. 3, 2005 for European Patent Application No. EP 03 25 4420.
Alps Electric Co. ,Ltd.
Pham Long
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