Non-contacting infrared temperature thermometer detector apparatus
US5653537A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1995 |
| Grant date | Aug 5, 1997 |
| Priority date | — |
| Expiry date | Mar 17, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J5/90
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A light detector is disclosed for measuring the temperature of an object. The light detector includes a lens assembly for accepting light emitted from the object, an aperture, and a mirror for reflecting the infrared energy of the object into a fiber optic cable. The fiber optic cable is connected to a depolarizing element to which pressure is externally applied. The depolarization element relays the infrared energy into a detection portion and a signal processing portion for calculating temperature. Before the infrared light enters the fiber optic cable, a chopper, controlled by a driving circuit, chops the infrared energy reflected by the mirror.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.