Optical member and method for manufacturing the same
AssigneeCanon Kabushiki Kaisha
InventorsTomonari Nakayama, Kenji Makino
Life of this patent
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Abstract
This invention provides an optical member having a high antireflection effect also on a base material with a low refractive index. This invention relate to an optical member in which a laminated body is formed on a base material surface, in which the laminated body has a porous layer or a layer having an uneven structure on the surface and having a polymer layer has a thickness of 10 nm or more and 150 nm or less and containing a maleimide copolymer between the porous layer or the layer having an uneven structure and the base material.
Claims12
An optical member comprising:
- a laminated body being formed on a base material surface and having a porous layer or a layer having an uneven structure on a surface, wherein
- the laminated body has a polymer layer having a layer thickness of 10 nm or more and 150 nm or less and containing a maleimide copolymer between the porous layer or the layer having an uneven structure and the base material, and
- the maleimide copolymer has a meleimide copolymerization ration of 0.5 or more and 0.97 or less.
(canceled)
A method for manufacturing an optical member in which a laminated body is formed on a base material surface, the method comprising:
- applying a polymer solution containing a maleimide copolymer onto the base material or a thin film provided on the base material, wherein the maleimide copolymer has a maleimide copolymerization ratio of 0.5 or more and 0.97 or less;
- drying and/or baking the applied polymer solution at 23° C. or more and 180° C. or less to form a polymer layer containing the maleimide copolymer;
- and
- forming a porous layer or a layer having an uneven structure on the polymer layer.
(canceled)
Dependencies are inferred from the claim text.