| US 7,530,723 B2 | ||
| Spread illuminating apparatus | ||
| Yasuo Ohno, Kitasaku-gun (Japan) | ||
| Assigned to Minebea Co., Ltd., Nagano (Japan) | ||
| Filed on Dec. 11, 2007, as Appl. No. 12/260. | ||
| Claims priority of application No. 2007-004660 (JP), filed on Jan. 12, 2007. | ||
| Prior Publication US 2008/0170412 A1, Jul. 17, 2008 | ||
| Int. Cl. F21V 8/00 (2006.01) | ||
| U.S. Cl. 362—613 [362/612; 362/623; 362/625] | 4 Claims |
| 1. A spread illuminating apparatus comprising:
a light conductor plate having a light inlet surface and a light outlet surface;
at least one point light source disposed along the light inlet surface of the light conductor plate;
a light reflector plate disposed on a major surface of the light conductor plate opposite to the light outlet surface, wherein
an end of the light reflector plate located adjacent to the point light source extends beyond the light inlet surface in a
direction toward the point light source; and
a light absorbing region disposed so as to cover at least a portion of the point light source,
wherein the light absorbing region comprises:
a light absorbing member disposed on a surface of the light reflector plate opposite to a surface facing the light conductor
plate; and
a recess provided between the light absorbing member and the point light source.
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