Hyperresolution optical system
US5450237A · kind A · utility
19Cited by
8References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1994 |
| Grant date | Sep 12, 1995 |
| Priority date | — |
| Expiry date | Sep 2, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/1381
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hyper-resolution optical device which can focus a beam of light to a diameter less than the diffraction limit. The optical device has an optical system disposed on a transmissive substrate. One component in the optical system is a hyper-resolution optical component which passes or reflects light and which has a central portion which does not pass or reflect light, respectively. The hyper-resolution optical component can be integrated with the transmissive substrate. Such optical devices are particularly suitable for optical pick-up devices, laser printers, sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.