Optical element having durability enhancing layer
AssigneeEastman Kodak Company
InventorsJames J. Kosinski, Alfred J. Amell
Life of this patent
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AssigneeEastman Kodak Company
InventorsJames J. Kosinski, Alfred J. Amell
Estimating the term…
An optical element is provide which has a durability enhancing layer. There is provided an optical disk comprising a support having on one surface thereof, in order: a) a recording layer such that said recording layer does not cover the entire surface of said disk but leaves an annular portion at the outer diameter; b) a reflective layer such that said reflective layer does not cover the entire surface of said disk but leaves an annular portion at the outer diameter; c) a first protective layer having a thickness between about 2-20 .mu.m, said protective layer being of a material having good adhesion to said support and covering a portion of the surface of said disk having said reflective layer, including at least a portion of said annular portion; d) a second protective layer having a thickness of at least about 3 .mu.m, said second layer covering at least the area of said surface having the reflective layer and having good adhesion to said first protective layer. In another aspect, there is provided a method wherein the first protective layer is spin coated and the second is screen printed.
An optical disk comprising a support material formed of an optically transparent resin, having thereon:
Dependencies are inferred from the claim text.