Spectral and spatial calibration illuminator and system using the same
US10060793B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2016 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Jan 19, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2003/2806
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of spatially and spectrally calibrating a spectrophotometer including: a) emitting a white light illumination output from a full width illumination source; b) illuminating a test patch with the white light illumination output; c) reflecting a portion of the white light illumination output from the test patch to form a white light reflected illumination output; d) receiving the white light reflected illumination output at first, second and third rows of photosensitive elements to form a first calibration data set; e) emitting a cyan light illumination output from the full width illumination source; f) illuminating the test patch with the cyan light illumination output; g) reflecting a portion of the cyan light illumination output from the test patch to form a cyan light reflected illumination output; and, h) receiving the cyan light reflected illumination output at the second and third rows of photosensitive elements to form a second calibration data set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.