Low-pressure sodium vapor discharge lamp

Details Low-pressure sodium vapor discharge lamp Low-pressure sodium vapor discharge lamp

1983-05-25

1984-04-03

Demeo, Palmer C.

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

313112, 313634, 313638, 313573, H01J 6122, H01J 6134, H01J 6135

Patent

active

044410450

ABSTRACT:
Low-pressure sodium vapor discharge lamp. The lamp comprises a cylindrical discharge tube and an outer bulb enveloping this tube. The outer bulb has a transparent layer which reflects infrared radiation.
According to the invention the resistance per square of the infrared reflecting layer is approximately 5 ohm. A luminous efficacy of 100 lumen per watt can be obtained at a lamp power of 8 watts. The lamp is particularly suitable for security lighting.

REFERENCES:
patent: 2875358 (1959-02-01), Rigden
patent: 3221198 (1965-11-01), Van Der Wal et al.
patent: 4129800 (1978-12-01), Van Benthem et al.

Affiliated with

Also associated with

Rating

Low-pressure sodium vapor discharge lamp does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low-pressure sodium vapor discharge lamp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low-pressure sodium vapor discharge lamp will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-669158