Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 8, 2011
Patent Application Number
11754848
Date Filed
May 29, 2007
Patent Primary Examiner
Patent abstract
An optical coating on a transparent substrate is provided with a temporary layer of carbon as protection during manufacturing against scratches and corrosive environments. When the optical coating and/or substrate are tempered in an atmosphere reactive to carbon, such as air, the layer of carbon is removed as a carbon-containing gas. For an optical coating with a brittle, glassy, outermost layer furthest from the substrate, additional protection is provided by a scratch propagation blocker layer between the outermost layer and the carbon protective layer.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
