Illumination – Plural light sources – With support
Reexamination Certificate
2008-07-08
2010-06-29
Husar, Stephen F. (Department: 2885)
Illumination
Plural light sources
With support
C362S249060, C362S235000, C362S311020, C362S245000
Reexamination Certificate
active
07744248
ABSTRACT:
A compact lighting fixture having various functions can be achieved at low cost. The lighting fixture can provide a high degree of freedom for space utilization, can provide a comfortable illumination space with designed light distribution, can be configured to require a smaller space for installation, and can have an appearance that is not so different from its surroundings. As a component constituting the illumination optical system, a polygonal frustum portion can be located at a center and can have tapered side reflecting portions. When assuming that three concentric imaginary circles have respective radii of R1, R2and R3(R1<R2<R3) and a center positioned at a center axis of the frustum portion, individual lens portions can be located at respective intersections where the imaginary circle having the radius of R1and lines extending radially from the center at regular center angles of α intersect. Light-incident lenses can be located at respective intersections where the imaginary circle having the radius of R2and bisectors of the center angles of α intersect. LEDs can be located at respective intersections where the imaginary circle having the radius of R3and lines connecting the center and positions of the light-incident lenses intersect.
REFERENCES:
patent: 6113247 (2000-09-01), Adams et al.
patent: 6450661 (2002-09-01), Okumura
patent: 6857762 (2005-02-01), Shimokawa et al.
patent: 7178923 (2007-02-01), Imade
patent: 7237927 (2007-07-01), Coushaine et al.
patent: 7506985 (2009-03-01), Radominski et al.
patent: 2003/0156409 (2003-08-01), Choate et al.
patent: 3099041 (2003-10-01), None
patent: 2005243256 (2005-09-01), None
patent: 2005327524 (2005-11-01), None
Kobinata Katsumi
Kondo Toshiyuki
Mochizuki Katsuya
Husar Stephen F.
Kenealy Vaidya LLP
Neils Peggy A.
Stanley Electric Co. Ltd.
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