Phase compensated zone plate photodetector
US4016416A · kind A · utility
9Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1976 |
| Grant date | Apr 5, 1977 |
| Priority date | — |
| Expiry date | Mar 23, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/021
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radiation transparent base having a number of coincentric Fresnel rings mounted on one face, and one-quarter wavelength in thickness and a reflective coating covering the face and rings and a detector mounted on the opposite face to collect reflected in phase radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.