Corrugated pattern forming sheet, and methods for manufacturing antireflector, retardation plate, original process sheet plate, and optical element
AssigneeOji Holdings Corporation
InventorToshiki Okayasu
Life of this patent
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Abstract
A corrugated pattern forming sheet exhibiting excellent performance when being used as optical elements, such as an antireflector and a retardation plate is provided. A corrugated pattern forming sheet of the invention includes a resin layer, and a hard layer provided at least in a portion of an outer surface of the resin layer. The hard layer is made of a metal or a metallic compound. The hard layer has a wavelike corrugated pattern. The average pitch of the corrugated pattern is 1 μm or less, and the average depth of the bottom of the corrugated pattern is 10% or more given an average pitch of 100%.
Claims13
A corrugated pattern forming sheet comprising a resin layer, and a hard layer provided at least in a portion of an outer surface of the resin layer, the hard layer having a wavelike corrugated pattern,
- wherein the hard layer provided in one whole surface of the resin layer,
- wherein the thickness of the hard layer is 5 nm or less,
- wherein the hard layer is made of at least one metal or at least one metallic compound, and wherein
- the average pitch of the corrugated pattern is 0.4 μm or less, and the average depth of the bottom of the corrugated pattern is 100% or more given an average pitch of 100%.
Dependencies are inferred from the claim text.