Now showing items 1-3 of 3

    • Stent optical inspection system calibration and performance 

      Bermúdez Porras, Carlos; Laguarta Bertran, Ferran; Cadevall Artigues, Cristina; Matilla, Aitor; Ibañez Ayala, Sergi; Artigas Pursals, Roger (Optical Society of American (OSA), 2017-03-20)
      Article
      Open Access
      Implantable medical devices, such as stents, have to be inspected 100% so no defective ones are implanted into a human body. In this paper, a novel optical stent inspection system is presented. By the combination of a high ...
    • Step height standards based on self-assembly for 3D metrology of biological samples 

      Järvinen, Hannu; Kassamakov, I.; Viitala, T.; Bermúdez Porras, Carlos; Artigas Pursals, Roger; Martínez Marin, Pol (2020-09-01)
      Article
      Open Access
      Modern microscopes and profilometers such as the coherence scanning interferometer (CSI) approach sub-nm precision in height measurements. Transfer standards at all measured size scales are needed to guarantee traceability ...
    • Three-dimensional measurements with a novel technique combination of confocal and focus variation with a simultaneous scan 

      Matilla, Aitor; Mariné, Jordi; Perez, J.; Cadevall Artigues, Cristina; Artigas Pursals, Roger (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2016)
      Conference report
      Open Access
      The most common optical measurement technologies used today for the three dimensional measurement of technical surfaces are Coherence Scanning Interferometry (CSI), Imaging Confocal Microscopy (IC), and Focus Variation ...