Electroluminescent ring light adapter for aircraft instruments

Details Electroluminescent ring light adapter for aircraft instruments Electroluminescent ring light adapter for aircraft instruments

1980-08-11

1981-10-27

Pitts, Harold I.

Communications: electrical

Audible indication

Percussion-type sound producer

362 23, 362 29, G01D 1128

Patent

active

042976812

ABSTRACT:
An electroluminescent (EL) ring lamp for illuminating dial indicia, pointers and the like of aircraft instruments is disclosed. The EL ring lamp comprises a flat split-ring arranged in a recess in an adapter plate removably mounted in front of the transparent instrument cover. The ring lamp is formed with microencapsulated phosphor particles applied in a polymeric binder to the illuminating surface of the lamp. In an alternate embodiment, the ring lamp has a frusto-conical illuminating surface.

REFERENCES:
patent: 2721808 (1955-10-01), Roberts
patent: 3027668 (1962-04-01), Hardesty
patent: 3875449 (1975-04-01), Byler
patent: 4181925 (1980-01-01), Burrows

Affiliated with

Also associated with

Rating

Electroluminescent ring light adapter for aircraft instruments does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electroluminescent ring light adapter for aircraft instruments, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electroluminescent ring light adapter for aircraft instruments will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-282020