Spectacle lens

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10908436
APP PUB NO 20180067339A1
SERIAL NO

15807126

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Provided is a spectacle lens (1) comprising one multilayer film (3a, 3b) on each surface of a plastic lens base material (2), wherein by setting an average reflection rate in at least the 530-570 nm wavelength range to 2.5-5.5% in at least one of the multilayer films (3a, 3b) disposed on a surface of the plastic lens base material, it is possible to attain, in dim environments, an improvement in vividness and brightness in visibility of objects, particularly those that are red in color, as well as an improvement in visibility of the white in white computer screens and the like, and the lens is thereby suitable for the eyes of elderly people.

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Patent Owner(s)

Patent OwnerAddress
NIKON-ESSILOR CO LTDJAPAN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miyamoto, So Kawasaki, JP 4 74

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Maintenance Fees

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7.5 Year Payment $3600.00 $1800.00 $900.00 Aug 2, 2028
11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 2, 2032
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Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00