Light source device

Details Light source device Light source device

2007-05-22

2007-05-22

O'Shea, Sandra (Department: 2875)

Illumination

Plural light sources

With modifier

C362S238000, C362S241000, C362S249070

Reexamination Certificate

active

10429884

ABSTRACT:
A light source device including light emitting elements is provided. The light source device includes a print circuit board having a plurality of recesses formed of truncated elliptical/or rectangular cones in a linear arrangement formed thereon, a plurality of light emitting elements and an emission-permeable window part disposed in each of the recesses. Each of the recesses has a flat bottom and an elliptical/or a rectangular cross section along the direction of the linear arrangement of the recesses in the print circuit board. One of the light emitting elements is disposed on the flat bottom of each of the recesses. Each light emitting element unit has an elongated illuminant surface along the longitudinal direction of the print circuit board due to the package thereof. The light emitting element units constitute a linear light source along this direction, and each light emitting element unit has an increased luminance flux along this direction.

REFERENCES:
patent: 4254453 (1981-03-01), Mouyard et al.
patent: 5789847 (1998-08-01), Woodward et al.
patent: 6072171 (2000-06-01), Nakamura et al.
patent: 6806583 (2004-10-01), Koay et al.
patent: 6949772 (2005-09-01), Shimizu et al.

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