EP 0464446 B1 19961016 - Electric lamp having a light reflecting layer
Title (en)
Electric lamp having a light reflecting layer
Title (de)
Elektrische Lampe mit lichtreflektierender Schicht
Title (fr)
Lampe électrique ayant une couche réflectrice
Publication
Application
Priority
DE 4020595 A 19900628
Abstract (en)
[origin: EP0464446A2] In order to avoid problematic process steps in the manufacture of reflector lamps, the production of the light-reflecting layer (6) is carried out by plasma-supported vacuum coating of the exterior bulb surface using, for example, titanium nitride, instead of by thermal vapour-deposition of the internal bulb surface using aluminium or aluminium-bronze. The light-reflecting layer (6) applied in this way has high adhesive strength and is very resistant to scratching and is also resistant to oxidation and moisture attack at an elevated temperature. <IMAGE>
IPC 1-7
IPC 8 full level
H01J 9/20 (2006.01); H01J 61/35 (2006.01); H01K 1/32 (2006.01)
CPC (source: EP)
H01J 9/20 (2013.01); H01J 61/35 (2013.01); H01K 1/325 (2013.01)
Designated contracting state (EPC)
DE DK FR GB IT SE
DOCDB simple family (publication)
EP 0464446 A2 19920108; EP 0464446 A3 19921021; EP 0464446 B1 19961016; DE 4020595 A1 19920109; DE 59108277 D1 19961121; HU T57946 A 19911230
DOCDB simple family (application)
EP 91109916 A 19910617; DE 4020595 A 19900628; DE 59108277 T 19910617; HU 216891 A 19910627