Progressive Ophthalmic Surface
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Feb 26, 2015
app pub date -
Apr 2, 2013
filing date -
Apr 2, 2012
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A progressive lens comprising a progressive ophthalmic surface including a main progression meridian dividing the surface into a nasal portion and a temporal portion and passing through at least one fitting point Py of ordinate Yp in a coordinate system centered on a reference point O(0; 0). For the points located at an ordinate Yp on either side of said fitting point Py, the points of ordinate Yp being contained inside a 50 mm diameter disc centered on the reference point O:
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully