The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 27, 2014
Filed:
Dec. 06, 2012
Renishaw Plc, Gloucestershire, GB;
Geoffrey McFarland, Wotton-under-Edge, GB;
Kevyn Barry Jonas, Bristol, GB;
Renishaw PLC, Wotton-Under-Edge, GB;
Abstract
A surface sensing device for use in position determining apparatus has an elongate stylus () with a tip () for scanning the surface of a workpiece to be measured. Lateral displacements of the stylus tip are detected by a light beam which passes along the stylus from a light source () to a retroreflector (). This reflects the beam back via a beamsplitter () to a position sensitive detector (). The stylus is mounted for longitudinal displacement on a carriage (). The longitudinal displacement is measured by another light beam projected by the beamsplitter () onto a second position sensitive detector ().