Patents by Inventor Guru Prasad ARUDI SUBBARAO

Guru Prasad ARUDI SUBBARAO has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Measuring surface roughness
    Patent number: 10571244
    Abstract: An imaging probe (102) for use in measuring surface roughness by angular speckle correlation is shown. The imaging probe comprises a first illumination fibre (201) to illuminate a sample location (103) on a surface, and having an input end for coupling of coherent light into the fibre, and an output end cleaved at an angle ?1, a second illumination fibre (202) 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 ?2 that is different from ?1, and an image transmission system (204) 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.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: February 25, 2020
    Assignee: Rolls-Royce plc
    Inventors: Murukeshan Vadakke Matham, Kelvin H K Chan, Guru Prasad Arudi Subbarao, Prabhathan Patinharekandy, Aswin Haridas, Pulkit Kapur
  • MEASURING SURFACE ROUGHNESS
    Publication number: 20190145755
    Abstract: An imaging probe (102) for use in measuring surface roughness by angular speckle correlation is shown. The imaging probe comprises a first illumination fibre (201) to illuminate a sample location (103) on a surface, and having an input end for coupling of coherent light into the fibre, and an output end cleaved at an angle ?1, a second illumination fibre (202) 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 ?2 that is different from ?1, and an image transmission system (204) for transmission of a to 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.
    Type: Application
    Filed: October 10, 2018
    Publication date: May 16, 2019
    Applicant: ROLLS-ROYCE plc
    Inventors: Murukeshan VADAKKE MATHAM, Kelvin H K CHAN, Guru Prasad ARUDI SUBBARAO, Prabhathan PATINHAREKANDY, Aswin HARIDAS, Pulkit KAPUR