Colored low-polarizing films, colored low-polarizing sheets, and colored low-polarizing lenses, and methods thereof
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United States of America Patent
Stats
-
Oct 10, 2017
Issued Date -
N/A
app pub date -
Jan 21, 2014
filing date -
Jan 25, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A colored low-polarizing film of a desired color is produced by causing a polyvinyl alcohol film to swell with water, stretching, dyeing with an organic dichroic dye, and drying it; a polarizing sheet including the film and transparent sheets attached to both sides of the film by an adhesive; and an injection-molded polarizing lens obtained by causing the sheet to curve to impart spherical or aspherical surfaces to obtain a curved polarizing lens and injecting a transparent resin onto the concave surface of the lens. The dye includes a dichroic organic dye and a coloration organic dye, wherein the dichroic composition includes a combination of dichroic dyes having a dichroic ratio of 13 or higher, wherein the coloration dye composition includes a combination of dyes having an extremely low dichroic ratio, of 4 or less, or substantially having no dichroic ratio.
First Claim
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- B29D Class
- 33.33 % 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 | Apr 10, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 10, 2029 |
