Spectacle lens
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 21, 2015
Grant Date -
Feb 27, 2014
app pub date -
Feb 20, 2012
filing date -
Feb 23, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A progressive power lens 10 for spectacles has a distance portion 11 and a near portion 12 of different powers. A surface power OMHP in a horizontal direction on an object-side surface along a principal meridian 14 or a vertical reference line passing through a fitting point Pe, a surface power OMVP(y) in a vertical direction of the object-side surface, the absolute value IMHP of a surface power on an eye-side surface, and the absolute value IMVP of a surface power in a vertical direction on the eye-side surface satisfy the following condition. OMHP(y)>OMVP(y) IMHP(y)>IMVP(y) OMHP(y)−OMVP(y)=IMHP(y)−IMVP(y) In the conditions, y is a coordinate along the principal meridian or the vertical reference line.
First Claim
Other Claims data not available
Family
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
- 2 Citation Count
- G02C Class
- 9.13 % this patent is cited more than
- 10 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 | Oct 21, 2026 |
