| US 7,597,459 B2 | ||
| Converging element and illuminating device | ||
| Makoto Maeda, Osaka (Japan); Takashi Ikeda, Osaka (Japan); and Yoshitaka Kurosaka, Kyoto (Japan) | ||
| Assigned to Sanyo Electric Co., Ltd., Osaka (Japan) | ||
| Filed on Mar. 07, 2006, as Appl. No. 11/368,483. | ||
| Claims priority of application No. 2005-062138 (JP), filed on Mar. 07, 2005; application No. 2005-072908 (JP), filed on Mar. 15, 2005; and application No. 2005-252818 (JP), filed on Aug. 31, 2005. | ||
| Prior Publication US 2006/0196944 A1, Sep. 07, 2006 | ||
| Int. Cl. F21V 3/02 (2006.01) | ||
| U.S. Cl. 362—268 [362/84; 362/298; 362/299; 362/300] | 14 Claims |
| 1. A converging element for guiding the light emitted from a light emitting element to a predetermined direction, comprising:
a light-incidence area for receiving the light emitted from the light emitting element;
a first light-emission area for directly receiving center emission light, out of lights emitted from the light emitting element,
incident from the light incidence area, and for emitting the light in the predetermined direction;
a reflection area for receiving and reflecting a peripheral emission light, out of the lights emitted from the light emitting
element, incident from the light incidence area;
a second light-emission area, formed on a peripheral side of the first light-emission area, for receiving light reflected
in the reflection area and for emitting the light to the predetermined direction;
a third light-emission area, formed between the first light-emission area and the second light-emission area, for directly
receiving the peripheral emission light, out of lights emitted from the light emitting element, incident from the light incidence
area, and for emitting the light to the predetermined direction; and
each of the areas being formed of a respectively different surface.
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