Patent · US Expired

Arrangement for sensing the geometric characteristics of an object

US4145991A · kind A · utility

10Cited by
1References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 14, 1977
Grant dateMar 27, 1979
Priority date
Expiry dateMar 14, 1997

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01B11/2536
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An arrangement for locating points on a surface, in which the surface is irradiated selectively and subdivided into a number of sections. The subdivided sections are made to overlap so that a region of one section overlaps the region of a neighboring section. Images of the irradiated sections are recorded, and then scanned for purposes of defining the location of predetermined points within overlapping regions of the subdivided sections. The location of the points within overlapping regions is dependent on a predetermined relationship of irradiated intensities of the points obtained during the scanning procedure.

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