High pressure sodium discharge reflector lamp

Details High pressure sodium discharge reflector lamp High pressure sodium discharge reflector lamp

1988-06-29

1990-07-03

Wieder, Kenneth

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

313113, 313573, 313634, 313642, H01J 6134

Patent

active

049394088

ABSTRACT:
A high pressure sodium discharge reflector lamp having a blown glass outer envelope. The outer envelope contains a rare gas having a fill pressure slightly less than one atmosphere and a pressure at lamp operating temperature of approximately one atmosphere for implosion protection.

REFERENCES:
patent: 4481446 (1984-11-01), Tsuchihashi et al.
patent: 4622485 (1986-11-01), Miyashita et al.
patent: 4758759 (1988-07-01), Scholz et al.

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