Optical lens having antireflective structure
US7545583B2 · kind B2 · utility
21Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2006 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | May 21, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical lens in which reflection is suppressed is provided by providing the optical lens with: a convex lens surface having, when the angle between a plane in contact with the lens surface and a direction perpendicular to the optical axis is an inclination angle, a maximum inclination angle of not less than 35 degrees and less than 90 degrees; and an antireflective structure provided on the lens surface and including structural elements that have a predetermined shape and are periodically arranged in an array form with a pitch smaller than the shortest wavelength of the incident light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.