Polarimeter to simultaneously measure the stokes vector components of light
US7038776B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2005 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | Mar 25, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J4/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A polarimeter simultaneously measures the Stokes vectors of a light beam using an optics unit with a slit with a slit axis, a foreoptics that focuses the light beam from the point location through the slit, a collimator that receives the light beam from the slit and collimates the light beam, a cylinder lens that receives the light beam from the collimator, wherein the cylinder lens has a cylindrical axis parallel to the slit axis, a re-imaging lens that images the light beam from the cylinder lens onto a focal plane, and a set of polarizing filters including three polarization filters having three different polarizations. The polarization filters are adjacent to each other in a direction perpendicular to the slit axis and lie between the cylinder lens and the focal plane so that the light beam is directed onto the set of polarizing filters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.