Method of producing an ultra-violet or near ultra-violet light source for non-destructive inspection or testing
US7145649B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 2001 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Dec 19, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/91
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is provided an apparatus having at least one LED capable of emitting near ultraviolet or ultraviolet radiation to excite a luminescent material for non-destructive fault testing. The radiation may also be focused using a lens. There is also provided a method for detecting a fault in a body, comprising the steps of applying a luminescent material to the body in a manner to concentrate the luminescent material in a pattern indicative of the location of a fault in the body; activating an LED to emit ultraviolet radiation; shining the radiation transmitted from the LED onto the body to excite the luminescent material; and detecting a fault by the fluorescence of the luminescent material indicative of the location of the fault in the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.