Method for sealing arc discharge lamps

Electric lamp or space discharge component or device manufacturi – Process – With assembly or disassembly

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65 34, 445 33, H01J 940

Patent

active

046890319

ABSTRACT:
A compact fluorescent lamp employs an inner exhaust tubulation formed from glass which is opaque to a given range of electromagnetic radiation. The exhaust tubulation is non-invasively sealed after an outer lamp envelope is sealed by directing upon the exhaust tubulation an amount of such radiation sufficient to heat the tubulation to its softening point. The outer envelope is transparent to the given radiation which, in a preferred embodiment, is in the range of 400 nm to 2500 nm.

REFERENCES:
patent: 2561838 (1951-07-01), Bechard
patent: 3551725 (1970-12-01), Brundige
patent: 3828407 (1974-08-01), Boekkooi
patent: 4508514 (1985-04-01), English
patent: 4560357 (1985-12-01), Bouchard et al.

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