Electrically modulatable thermal radiant source with specific filament
First Claim
1. An electrically modulatable thermal radiant source with a multilayer structure comprising:
- a substrate,a first insulating layer formed onto said substrate,a radiant surface layer formed onto said first insulating layer,a second insulating layer formed on said radiant surface layer,a first metallization layer formed on said second insulating layer,a third insulating layer formed on said first metallization layer,a second metallization layer for contacting formed on said third insulating layer,wherein said first metallization layer forms a planar plate of thin, incandescent filaments, said incandescent filaments being surrounded by said first insulating layer, said radiant layer, said second insulating layer, and said third insulating layer and said incandescent filaments being spaced from each other over an area of said planar plate, a spacing between adjacent incandescent filaments near edges of said planar plate of incandescent filaments being closer than a spacing between adjacent incandescent filaments near a midportion of said planar plate of incandescent filaments.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention is related to an electrically modulatable thermal radiant source with a multilayer structure. The radiant source includes a substrate, a first insulating layer formed onto the substrate, a radiant surface layer formed onto the first insulating layer, a second insulating layer formed on the radiant surface layer, a first metallization (incandescent filament) layer formed on the second insulating layer, a third insulating layer formed on the first metallization layer, and a second metallization layer for contacting formed on the third insulating layer. According to the invention, very thin incandescent filaments are formed from the first metallization layer and surrounded by the other elements of the multilayer structure as a uniform, planar plate.
69 Citations
20 Claims
-
1. An electrically modulatable thermal radiant source with a multilayer structure comprising:
-
a substrate, a first insulating layer formed onto said substrate, a radiant surface layer formed onto said first insulating layer, a second insulating layer formed on said radiant surface layer, a first metallization layer formed on said second insulating layer, a third insulating layer formed on said first metallization layer, a second metallization layer for contacting formed on said third insulating layer, wherein said first metallization layer forms a planar plate of thin, incandescent filaments, said incandescent filaments being surrounded by said first insulating layer, said radiant layer, said second insulating layer, and said third insulating layer and said incandescent filaments being spaced from each other over an area of said planar plate, a spacing between adjacent incandescent filaments near edges of said planar plate of incandescent filaments being closer than a spacing between adjacent incandescent filaments near a midportion of said planar plate of incandescent filaments. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification