Scratch masking coatings for optical substrates

Details Scratch masking coatings for optical substrates Scratch masking coatings for optical substrates

2006-06-06

2006-06-06

Schwartz, Jordan M. (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

C351S165000, C351S163000, C359S634000

Reexamination Certificate

active

07055954

ABSTRACT:
This invention relates to a reflective coating for a surface of an optical substrate, the reflective coating including a plurality of layers of alternating higher and lower refractive index, the thickness and/or number of the layers selected to cause the reflective coating to be scratch masking.

REFERENCES:
patent: 6077569 (2000-06-01), Knapp et al.
patent: 6569517 (2003-05-01), McGurran et al.
patent: 6848797 (2005-02-01), Gillich et al.
patent: 6852406 (2005-02-01), Marechal et al.
patent: 62-239103 (1987-10-01), None
patent: 10-170709 (1998-06-01), None
patent: 10-291269 (1998-11-01), None
Hunter et al., “The Measurement of Appearance”, Second Edition, 1987, pp. 145-148, 177-180, Wiley, New York, New York.

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