Electric lamp and discharge devices – With temperature modifier – Having heat conducting path
Reexamination Certificate
2008-09-16
2008-09-16
Patel, Vip (Department: 2889)
Electric lamp and discharge devices
With temperature modifier
Having heat conducting path
C313S025000
Reexamination Certificate
active
11385057
ABSTRACT:
Disclosed herein is a lamp cooling device for cooling a lamp including a light emission source for emitting light, a front transparent plate, a reflector for reflecting light emitted by the light emission source toward the front transparent plate, the light emission source being disposed in an intralamp space surrounded by the front transparent plate and the reflector, said lamp cooling device including: a duct having joint ports defined in respective opposite ends thereof and communicating with said intralamp space, said duct having a continuously extending portion between said opposite ends which is disposed in a space outside of said intralamp space, for circulating a gas through said duct and said intralamp space in isolated relation to the space outside of said intralamp space.
REFERENCES:
patent: 3686528 (1972-08-01), Sheets
Haga Motohisa
Hasegawa Hiroshi
Ito Yukio
Miwa Satoru
Nakagawa Shigeyasu
Frommer William S.
Frommer & Lawrence & Haug LLP
Patel Vip
Sony Corporation
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