Optical measuring device
US6970253B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2001 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | Apr 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.