Apparatus and method for examining spectral characteristics of transmitted light through an object
US7646478B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2007 |
| Grant date | Jan 12, 2010 |
| Priority date | — |
| Expiry date | Dec 6, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/255
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for examining spectral characteristics of an object may include a chuck configured to support and releasably fix the object, wherein the chuck is larger than the object, a first light source assembly integral with the chuck and configured to illuminate a bottom surface of the object with light having a predetermined spectrum and intensity, and a transmission analysis unit for collecting and analyzing light transmitted through the object. The first light source assembly may include multiple and/or adjustable light sources. A second light source assembly may illuminate a top surface of the object, and a reflection analysis unit may collect resultant reflected light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.