Confocal coded aperture imaging
US6195412A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1999 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Mar 10, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/295
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for imaging a target volume comprises the steps of: radiating a small bandwidth of energy toward the target volume; focusing the small bandwidth of energy into a beam; moving the target volume through a plurality of positions within the focused beam; collecting a beam of energy scattered from the target volume with a non-diffractive confocal coded aperture; generating a shadow image of said aperture from every point source of radiation in the target volume; and, reconstructing the shadow image into a 3-dimensional image of the every point source by mathematically correlating the shadow image with a digital or analog version of the coded aperture. The method can comprise the step of collecting the beam of energy scattered from the target volume with a Fresnel zone plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.