Illumination – Light source and modifier – With ventilating – cooling or heat insulating means
Reexamination Certificate
2007-01-23
2007-01-23
O'Shea, Sandra (Department: 2875)
Illumination
Light source and modifier
With ventilating, cooling or heat insulating means
C362S373000, C362S800000, C257S099000
Reexamination Certificate
active
10978090
ABSTRACT:
A bulb comprises a seat; a plurality of metal heat sink each having two fixing surfaces, one fixing surface being fixed with an light emitting chip; and one end of each metal heat sink being placed into an insulated frame and then being fixed to a supporting surface of a heat conductive base; the metal heat sinks having an effect of absorbing heat energy and then transferring heat to the seat so as to dissipate heat; the metal heat sinks being integrally formed with the bulb base and then being combined to the seat; the heat conductive base having an inclined surface which is advantageous to reflect light from a light emitting diode so as to increase the illumination of the light emitting chip; and a metal adhesive layer being assembled to the supporting surface of the heat conductive base and the fixing surfaces of the metal heat sinks.
REFERENCES:
patent: 6045240 (2000-04-01), Hochstein
patent: 6511209 (2003-01-01), Chiang
patent: 6525668 (2003-02-01), Petrick
patent: 6715900 (2004-04-01), Zhang
patent: 6787999 (2004-09-01), Stimac et al.
patent: 6864513 (2005-03-01), Lin et al.
O'Shea Sandra
Truong Bao Q.
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