Blue edge filter optical lens
US9885885B2 · kind B2 · utility
3Cited by
24References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2013 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Mar 3, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical lenses are described and include a polymeric interference filter disposed on a curved polymeric substrate. The optical lens has an average light transmission of less than 2% across a band of blue light from 400 nm to at least 420 and up to 440 nm and substantially transmits blue light greater than 450 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.