Method of manufacturing a high-pressure discharge lamp with end

Details Method of manufacturing a high-pressure discharge lamp with end Method of manufacturing a high-pressure discharge lamp with end

1992-10-27

1994-02-22

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

445 44, 65 34, H01J 932

Patent

active

052882551

ABSTRACT:
A high pressure discharge lamp having a translucent sintered aluminum oxide discharge envelope is produced by a method that includes providing a ceramic end plug having an aperture for a current lead-in member in an end of the envelope, sintering the end plug to the envelope and passing the current lead-in member through the plug so as to extend into the envelope, forming a thin disc-shaped sealing member formed of magnesium oxide containing glass frit and having an aperture for the lead-in member on the outer surface of the plug, positioning a thin barrier member having an aperture for the lead-in member on and extending over the outer surface of the sealing member and heating the assembly so as to cause the sealing member to melt and form a glass bond between the lead-in member and the plug and the barrier member to melt and bond to the glass seal.

REFERENCES:
patent: 3609437 (1971-09-01), Tol et al.
patent: 4721886 (1988-01-01), Oomen et al.
patent: 5188554 (1993-02-01), Snellgrove et al.

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