Patent · US Expired

Apparatus for optically scanning a surface

US4195223A · kind A · utility

2Cited by

3References

4Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Udo Bergmann · Darmstadt, DE
Karl W. Klose · Findlay, US

Key dates

Filing date	Jan 30, 1978
Grant date	Mar 25, 1980
Priority date	—
Expiry date	Jan 30, 1998

Classification

Technology area (CPC G)Physics
CPC primaryG09F3/00
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Apparatus for optically scanning a surface, the radiation path between the light source and light detector including a wedge for correcting undesired intensity variations which occur when a homogeneous non-textured surface is scanned.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.