Ophthalmic color-enhancing lenses and materials
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 22, 2017
Grant Date -
Aug 17, 2017
app pub date -
May 5, 2017
filing date -
Jan 19, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An ophthalmic spectacle lens having transmittance properties that block UV and violet light and partially block certain cyan wavelengths to enhance contrast between blue versus green and partially block certain yellow wavelengths to enhance contrast between green versus red, and keep in accordance with the tristimulus values. Adding wavelength-selective organic dyes provides the entire functional attributes of the current invention or improves the contrast-enhancing attributes provided by a glass wafer having functional rare-earth oxides, either of which improve multi-band spectrum that is balanced in blocking UV light, and adding contrast between the primary colors to optimize color-enhancing functions. When using organic dyes for all functional attributes it is possible to integrate these dyes into plastic ophthalmic materials. Some lenses are polarized. Unlike other color-enhancing sunglass lenses, this invention may help protect the eyes from over-exposure to some high-energy visible blue light, which may lead to age-related macular degeneration (AMD).
First Claim
Other Claims data not available
Family
International Classification(s)
- 2017 Application Filing Year
- G02C Class
- 702 Applications Filed
- 498 Patents Issued To-Date
- 70.95 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 8 Citation Count
- G02C Class
- 21.26 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Feb 22, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 22, 2029 |
