High pressure sodium lamp having improved coloring rendition

Details High pressure sodium lamp having improved coloring rendition High pressure sodium lamp having improved coloring rendition

1984-12-17

1986-04-01

Moore, David K.

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

313573, 313572, 313636, 313642, H01J 6118, H01J 6134

Patent

active

045800758

ABSTRACT:
A high pressure sodium lamp operated at increased pressure and having an improved color rendition is disclosed. The improved high pressure sodium lamp has an arc tube which reduces the sodium losses typically experienced by high pressure operation.

REFERENCES:
patent: 3248590 (1966-04-01), Schmidt
patent: 4109175 (1978-08-01), Watarai et al.
patent: 4285732 (1981-08-01), Charles et al.

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