Patent · US Expired

Optical measuring device

US6970253B2 · kind B2 · utility

9Cited by
8References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 6, 2001
Grant dateNov 29, 2005
Priority date
Expiry dateApr 17, 2022

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B13/06
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An optical measuring device includes a 3-D measuring set-up for measuring the shapes of test object surfaces in three dimensions, and projection optics including an objective optics, the test object being illuminated by a light source via an illuminating beam using an illuminating optics. A rapid, highly resolving measurement of surface shapes which are nearly radially symmetric is provided by configuring the objective optics as image-flattening optics for covering (measuring) and flattening a curved surface area or as panoramic optics for measuring a radially symmetric surface area that encircles 360°.

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