Light guide member and illuminating device

Details Light guide member and illuminating device Light guide member and illuminating device

2006-04-11

2006-04-11

O'Shea, Sandra (Department: 2875)

Illumination

Supported by vehicle structure

Light modifier

C385S039000, C385S901000, C362S348000

Reexamination Certificate

active

07025482

ABSTRACT:
The invention provides a light guide member and an illuminating device which are able to efficiently uniformly irradiate illumination light to only an area requiring illumination. Therefore, a reflection face is constructed by reflection stripes such as many grooves, etc. widened in a concentric circle shape. Light from a light source unit is widened toward this entire reflection face without irregularities by a diffusing portion such as a reflection prism, etc. Thus, only the range actually requiring the illumination can be illuminated without irregularities, and visibility of the illumination range using a front light is raised.

REFERENCES:
patent: 1918087 (1933-07-01), Donley
patent: 4989125 (1991-01-01), Cobb et al.
patent: 6786613 (2004-09-01), Suzuki
patent: 6880945 (2005-04-01), Knaack et al.
patent: 2000-180631 (2000-06-01), None
patent: WO 98/26212 (1998-06-01), None

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