Confocal microspectrometer system
US5864139A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1997 |
| Grant date | Jan 26, 1999 |
| Priority date | — |
| Expiry date | Feb 13, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/0032
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A microscope for use in transmissive and reflective infrared spectral analysis of a sample positioned on a sample plane. The microscope uses a collimated beam for infinity correction. A collimated irradiating beam of infrared energy is input to the microscope and focused through a single confocal aperture whereupon the beam is re-collimated and provided to a focusing lens. The focusing lens focuses the beam on a subject sample which generates a resulting image beam. The resulting image beam is re-collimated and provided to an optical element which focuses the resulting image beam back through the single confocal aperture and to an infrared detector. In a preferred embodiment, the size of the single confocal aperture is adjustable and a dichroic element is included for providing simultaneous viewing and infrared measurement of a measured sample. Also in a preferred embodiment, a detector mounting apparatus is included for facilitating orientation of a detector at an infrared output of the microscope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.