High intensity discharge lamp having composite leg

Details High intensity discharge lamp having composite leg High intensity discharge lamp having composite leg

2007-09-20

2011-11-08

Walford, Natalie (Department: 2879)

Electric lamp and discharge devices

With gas or vapor

Having electrode lead-in or electrode support sealed to...

C313S567000, C313S608000, C313S634000, C313S624000, C313S625000

Reexamination Certificate

active

08053990

ABSTRACT:
A system, in certain embodiments, includes a high intensity discharge lamp having a composite leg. The composite leg includes a plurality of leg sections coupled together in series. The plurality of leg sections includes different materials, coefficients of thermal expansion, Poisson's ratios, or elastic moduli, or a combination thereof. A method, in certain embodiments, includes enclosing a high intensity discharge within a ceramic arc envelope. The method also includes reducing thermal stresses associated with the high intensity discharge via a composite leg extending outwardly from the ceramic arc envelope. The composite leg includes a plurality of leg sections coupled together in series. The plurality of leg sections includes different materials, coefficients of thermal expansion, Poisson's ratios, or elastic moduli, or a combination thereof.

REFERENCES:
patent: 5552670 (1996-09-01), Heider et al.
patent: 6066918 (2000-05-01), Suzuki et al.
patent: 6239405 (2001-05-01), Jones et al.
patent: 6657388 (2003-12-01), Wijenberg et al.
patent: 7498742 (2009-03-01), Janssen et al.
patent: 7615929 (2009-11-01), Bewlay et al.
patent: 2002/0117965 (2002-08-01), Kotter et al.
patent: 2002/0145388 (2002-10-01), Kelly et al.
patent: 2003/0209984 (2003-11-01), Niimi
patent: 2004/0119413 (2004-06-01), Kebbede et al.
patent: 2004/0119414 (2004-06-01), Bewlay et al.
patent: 2004/0135510 (2004-07-01), Bewlay et al.
patent: 2006/0008754 (2006-01-01), Janssen et al.
patent: 2006/0068679 (2006-03-01), Bewlay et al.
patent: 2006/0222878 (2006-10-01), Watanabe et al.
patent: 2007/0018582 (2007-01-01), Tsuda et al.
patent: 2009/0167179 (2009-07-01), Allen et al.
patent: 2009/0224674 (2009-09-01), Selezneva et al.
patent: 2010/0033093 (2010-02-01), Leonard et al.
patent: 1253616 (2002-10-01), None

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