PLASTIC SPECTACLE LENS AND SPECTACLES

Number of patents in Portfolio can not be more than 2000

United States of America

SERIAL NO

16542755

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A plastic spectacle lens includes at least a plastic base. In the plastic spectacle lens, a difference between a highest transmittance and a lowest transmittance for light in a range of wavelengths of not less than 400 nm and not greater than 780 nm, is not greater than 10 points, and an internal transmittance of the base for light in a range (visible range) of wavelengths of not less than 380 nm and not greater than 780 nm is not less than 80% over the entirety of the range of the wavelengths.

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Patent Owner(s)

Patent OwnerAddress
TOKAI OPTICAL CO LTDOKAZAKI-SHI AICHI 444-2192

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
IMAI, Koji Okazaki-Shi, JP 74 629
TAKAHASHI, Hirotoshi Okazaki-shi, JP 25 152
UENO, Hiroshi Okazaki-shi, JP 367 3899

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