Apparatus and method for inspection
US5118193A · kind A · utility
11Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1990 |
| Grant date | Jun 2, 1992 |
| Priority date | — |
| Expiry date | Mar 19, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/8806
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and method for inspecting coatings on the surface of an object includes a light source of a ring light to uniformly light an object that is placed inside a diffusing view chamber. A video system measures the reflected light intensity from the surface of the object to determine if there are voids in the surface coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.