Resin product, method of making resin product, interchangeable lens, and optical device
AssigneeCanon Kabushiki Kaisha
InventorsToshimitsu Nagoya, Makoto Kojima, Kei Oikawa, Yukiya Enokida, Takashi Endo, Osamu Morisaki
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Abstract
A resin product including an antireflection surface includes a plurality of first concave portions, a plurality of second concave portions, and a component surface. The first concave portions have opening widths equal to or larger than 1 μm and equal to or smaller than 300 μm. The second concave portions are formed on each of the plurality of first concave portions and have opening widths equal to or larger than 10 nm and equal to or smaller than 1 μm. The component surface is configured to surround each of the plurality of first concave portions.
Claims20
A resin product comprising an antireflection surface comprising:
- a plurality of first concave portions having opening widths of 1 μm to 300 μm;
- a plurality of second concave portions formed on each of the plurality of first concave portions and having opening widths of 10 nm to 1 μm, and
- a component surface configured to surround each of the plurality of first concave portions,
- wherein the component surface includes a saddle-shaped convex portion on which no concave portions having opening widths of 10 nm to 1 μm are formed.
A method of making a resin product comprising an antireflection surface, the method comprising:
- preparing a mold having a molding surface, which comprises a plurality of first convex portions and a plurality of second convex portions formed on surfaces of the plurality of first convex portions, the plurality of first convex portions having diameters equal to or larger than 1 μm, the plurality of second convex portions having diameters of 10 nm to 1 μm;
- and
- forming a plurality of first concave portions on a resin material and forming a plurality of second concave portions on inner surfaces of the plurality of first concave portions by causing the resin material to contact the mold, the plurality of first concave portions of the resin material having opening widths of 1 μm to 300 μm, and the plurality of second concave portions of the resin material having opening widths of 10 nm to 1 μm,
- wherein a component surface surrounds each of the plurality of first concave portions of the resin material, the component surface including a saddle-shaped convex portion on which no concave portions having opening widths of 10 nm to 1 μm are formed.
Dependencies are inferred from the claim text.