Digital image system and method for determining surface reflective and refractive characteristics of objects
US5477332A · kind A · utility
114Cited by
8References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1995 |
| Grant date | Dec 19, 1995 |
| Priority date | — |
| Expiry date | Apr 5, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/255
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A computer controlled system for determining various physical surface characteristics of an object includes a light source array, positioned to illuminate a surface for evaluation, in which individual lights in the array illuminate the object on a mutually exclusive basis, a radiometer, positioned to receive light from the object, producing image data relative to positions of the light pixels and a computer apparatus that, among other functions in the system, interprets the image data and determines at least the surface waviness, radius of curvature and cant angle of the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.