Detection system for birefringence measurement
US8520207B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 17, 2012 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Aug 17, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/23
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for controlling a light beam in an optical setup includes a light source that directs a collimated light beam along a path, through a sample, and toward the active area of a stationary detector. A lens is selectively movable into the path of the light beam for spreading the beam in instances where the path of the beam is altered by the sample between the source and the stationary detector. The detector, therefore, is held stationary. Adjustment mechanisms are provided for increasing the intensity characteristic of the light that reaches the detector to account for a decrease in intensity that occurs when the lens is in the path of the light beam to spread the beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.