F - Mech Eng,Light,Heat,Weapons – 21 – V
Patent
F - Mech Eng,Light,Heat,Weapons
21
V
F21V 7/22 (2006.01) H01J 9/20 (2006.01) H01J 61/02 (2006.01) H01J 61/34 (2006.01) H01J 61/35 (2006.01) H01J 61/40 (2006.01)
Patent
CA 2137585
An interference filter or coating is provided in a predetermined pattern on a lamp envelope. The coating is comprised of alternating layers of high and low index of refraction materials applied to a vitreous outer surface of a lamp envelope. The coating may be geometrically symmetric or asymmetric, continuous or discontinuous with respect to the coating itself or the envelope to which it has been applied. The envelope can be masked prior to deposition of the coating so that removal of the mask leaves the filter in the desired pattern. The preferred process for forming the coating includes forming a boric oxide mask on a portion of the envelope, applying the coating over the mask and removing the coating from masked areas of the envelope by dissolving the mask in an aqueous solution.
Ahlgren Frederic F.
Allen Gary R.
Bergman Rolf S.
Davenport John M.
Duffy Mark E.
Company General Electric
Craig Wilson And Company
LandOfFree
Patterned optical interference coatings for electric lamps does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Patterned optical interference coatings for electric lamps, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Patterned optical interference coatings for electric lamps will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1849029