Collection of ophthalmic lens pairs and ophthalmic lenses...

Details Collection of ophthalmic lens pairs and ophthalmic lenses... Collection of ophthalmic lens pairs and ophthalmic lenses...

2007-01-05

2008-11-18

Sugarman, Scott J (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

C351S044000

Reexamination Certificate

active

07452076

ABSTRACT:
Each lens of a pair of lenses is provided on at least one of its faces with an antireflection coating having a luminous reflection factor Rvthat is 2.5% or less, having residual reflections exhibiting the same perceived color, the hue angle (h) for the antireflection coating of one lens varying by not more than 60° as compared to the antireflection coating of the other lens, and:the antireflection coating of one of the lens having an intensely colored residual reflection, a mean reflection factor Rm1≧1.20% and a chroma value C*1≧15,the antireflection coating of the second lens having a weakly colored residual reflection, a mean reflection factor Rm2≦1.65% and a chroma value C*2≦15, and|Rm1−Rm2|≦2.2% and C*1−C*2>5.The invention can be applied to spectacle glasses.

REFERENCES:
patent: 3799653 (1974-03-01), Ikeda
patent: 4609267 (1986-09-01), Deguchi et al.
patent: 6777069 (2004-08-01), Ito et al.
patent: 0928977 (1999-07-01), None
patent: 2182079 (1973-12-01), None

Affiliated with

Also associated with

Rating

Collection of ophthalmic lens pairs and ophthalmic lenses... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Collection of ophthalmic lens pairs and ophthalmic lenses..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Collection of ophthalmic lens pairs and ophthalmic lenses... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4051061