Electric lamp having optical interference filter of alternating

Details Electric lamp having optical interference filter of alternating Electric lamp having optical interference filter of alternating

1998-04-08

2000-04-11

Patel, Vip

Electric lamp and discharge devices

With gas or vapor

Envelope with particular structure

313493, 313634, 313112, H01J 1716

Patent

active

060491698

ABSTRACT:
Thin film interference filter consists of alternating first and second layers, the first layers being silica, the second layers being a mixture of tantala and niobia. The filter may be used on a high temperature lamp in an inert atmosphere if the niobia in the mixture is less than 40% by weight. For higher percentages a partial pressure of oxygen has been found to prevent blackening of the layers.

REFERENCES:
patent: 4663557 (1987-05-01), Martin, Jr. et al.
patent: 4734614 (1988-03-01), Kuus
patent: 4904636 (1990-02-01), Brock et al.
patent: 5138219 (1992-08-01), Krisl et al.
patent: 5493442 (1996-02-01), Bucholz et al.
patent: 5552671 (1996-09-01), Parham et al.
patent: 5646472 (1997-07-01), Horikoshi

Affiliated with

Also associated with

Rating

Electric lamp having optical interference filter of alternating does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electric lamp having optical interference filter of alternating , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric lamp having optical interference filter of alternating will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1179169