Patent · US Expired

Real-time goniospectrophotometer

US7321423B2 · kind B2 · utility

3Cited by
5References
30Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 9, 2004
Grant dateJan 22, 2008
Priority date
Expiry dateMay 5, 2025

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N2021/575
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

In accordance with embodiments of the present invention, a goniospectrophotometer is provided for quickly obtaining a goniospectrum using a goniospectrophotometer. In some embodiments, a parabolic reflector is used to optically transform the angular space of a source at the parabola focus into a linear space and facilitate the use of a single diffracting element and area camera to simultaneously measure the angular spectrum of the source. Spectra corresponding to zenith angles of light reflection by the parabolic reflector can be acquired by a detector and analyzed in a computer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.