High-intensity-discharge lamp with improved color rendition of i

Details High-intensity-discharge lamp with improved color rendition of i High-intensity-discharge lamp with improved color rendition of i

1980-06-12

1982-07-27

Demeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313229, H01J 6120, H01J 6144

Patent

active

043419780

ABSTRACT:
High-intensity-discharge lamp is fabricated in a fashion generally similar to a standard high-pressure-mercury lamp which has a red-emitting phosphor coated on the outer envelope. In the present lamp, the discharge-sustaining filling in the arc tube is modified to include a small, predetermined proportion of cadmium which adds radiations of a wavelength of about 490 nm to the composite lamp emission. The resulting composite emission has greatly improved color-rendering properties as compared to a similar lamp which does not incorporate the cadmium addition to the arc tube filling.

REFERENCES:
patent: 2103038 (1937-12-01), Moers
patent: 3263111 (1966-07-01), Doering
patent: 3630946 (1971-12-01), Ropp et al.
patent: 3657590 (1972-04-01), Johnson
patent: 3778662 (1973-12-01), Johnson
patent: 4065688 (1977-12-01), Thornton

Affiliated with

Also associated with

Rating

High-intensity-discharge lamp with improved color rendition of i does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High-intensity-discharge lamp with improved color rendition of i, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-intensity-discharge lamp with improved color rendition of i will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2026756