Progressive ophthalmic lens
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Sep 27, 2016
Grant Date -
Jan 16, 2014
app pub date -
Mar 22, 2012
filing date -
Mar 22, 2012
priority date (Note) -
Withdrawn
status (Latency Note)
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Abstract
Disclosed is a progressive ophthalmic lens including a front surface and a rear surface, each surface having in each point an altitude, a mean sphere value and a cylinder value, the front surface of the lens including: —a far vision zone having a far vision reference point; —a near vision zone having a near vision reference point; —a main meridian, wherein the front surface is regressive and has: —a sphere gradient normalized value of less than 7.50·10−1 mm−1 at any point in a central portion of the lens including a portion of the main meridian (32), the far vision reference point (FV) and the near vision reference point (NV); —a cylinder gradient normalized value of less than 1.45 mm−1 at any point in the central portion of the lens.
First Claim
Other Claims data not available
Family
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International Classification(s)
- 2012 Application Filing Year
- G02C Class
- 394 Applications Filed
- 337 Patents Issued To-Date
- 85.54 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- G02C Class
- 0 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 3, 2027 |