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:
Feb. 25, 2020
Filed:
Oct. 10, 2018
Rolls-royce Plc, London, GB;
Murukeshan Vadakke Matham, Singapore, SG;
Kelvin H K Chan, Singapore, SG;
Guru Prasad Arudi Subbarao, Singapore, SG;
Prabhathan Patinharekandy, Singapore, SG;
Aswin Haridas, Singapore, SG;
Pulkit Kapur, Singapore, SG;
Rolls-Royce plc, , GB;
Abstract
An imaging probe () for use in measuring surface roughness by angular speckle correlation is shown. The imaging probe comprises a first illumination fibre () to illuminate a sample location () on a surface, and having an input end for coupling of coherent light into the fibre, and an output end cleaved at an angle θ, a second illumination fibre () to illuminate the sample location on the surface, and having an input end for coupling of coherent light into the fibre, and an output end cleaved at an angle θthat is different from θ, and an image transmission system () for transmission of a speckle pattern caused by illumination of the sample location on the surface by coherent light from either the first illumination fibre or the second illumination fibre.