Detection of the phase and amplitude of electromagnetic waves
US7238927B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2000 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Mar 27, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/89
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a device for detecting electromagnetic waves, especially for also detecting the phase and amplitude of electromagnetic waves, using elements that react sensitively to incident electromagnetic waves. The aim of the invention is to provide a method and a device for detecting the phase and amplitude of electromagnetic waves that are economical as possible and also allow relatively high resolution. To this end, the invention provides that the device has two different pixel types, one pixel type being essentially only sensitive to intensity and the other pixel type being essentially only sensitive to phase. Accordingly, two different pixel types are used in the method, one of which reacts essentially to the intensity of the incoming electromagnetic waves, while the other pixel type is phase-sensitive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.