Illumination – Light source and modifier – Including reflector
Reexamination Certificate
2009-03-24
2011-10-04
Truong, Bao Q (Department: 2875)
Illumination
Light source and modifier
Including reflector
C362S327000, C362S310000, C362S329000, C362S311020
Reexamination Certificate
active
08029163
ABSTRACT:
An LED unit includes an LED and an envelope receiving the LED therein. The envelope includes a bottom substrate fixing the LED thereon, a sidewall angling upwardly from the substrate and surrounding the LED, and a lens formed in the sidewall and located above the LED. The lens has two aspheric surfaces with different curvatures to collect light deflected at a small angle relative to an axis of the LED into a parallel pattern. The sidewall has upper and lower conical inner circumferences and a parabolic outer circumference to direct light deflected at a large angle relative to the axis of the LED into parallel pattern. The lower inner circumference of the sidewall has an angle of 2π/5 to 13π/30, and the upper inner circumference of the sidewall has an angle of 5π/36 to 7π/36.
REFERENCES:
patent: 2254961 (1941-09-01), Harris
patent: 6724543 (2004-04-01), Chinniah et al.
patent: 7111964 (2006-09-01), Suehiro et al.
patent: 7461960 (2008-12-01), Opolka et al.
patent: 7473013 (2009-01-01), Shimada
patent: 7618160 (2009-11-01), Chinniah et al.
patent: 2001/0007527 (2001-07-01), Lammers et al.
patent: 2007/0263390 (2007-11-01), Timinger et al.
patent: 2010/0014286 (2010-01-01), Yoneda et al.
patent: 1692503 (2005-11-01), None
patent: 1901238 (2007-01-01), None
patent: 2006109113 (2006-10-01), None
Chen Chin-Chung
Zhang Hai-Wei
Altis Law Group, Inc.
Foxconn Technology Co., Ltd.
Fu Zhun Precision Industry (Shen Zhen) Co. Ltd.
Truong Bao Q
LandOfFree
LED unit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with LED unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and LED unit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4260356