Patent · US Expired

Spectrophotometer and radiometric measurement apparatus

US5483339A · kind A · utility

29Cited by
36References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 4, 1994
Grant dateJan 9, 1996
Priority date
Expiry dateMay 4, 2014

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N21/25
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A handheld portable spectrophotometer is provided including keys for input of instructions by a user, an illuminator for illuminating a sample, and a spectral analyzer for separating light reflected from the sample into spectral components to produce a signal corresponding to the level of each spectral component. A processor is provided for executing the user instructions and for analyzing the signal. The results of the signal analysis are presented on a display. A power source is provided for providing power for operation of the handheld portable spectrophotometer.

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