Browsing by Author "Arasa, Josep"

Now showing items 1-5 of 5

    • Dispositivo para la medida de frentes de onda muy aberrados y con gran apertura 

      Caum Aregay, Jesús; Arasa, Josep; Royo Royo, Santiago (2009)
      Conference report
      Restricted access - publisher's policy
      En la comunicación presentamos un dispositivo basado en la deflectometría ronchi digital adaptado para el control de calidad de lentes oftálmicas de adición progresiva, en una sola exposición y a campo completo. Las ...

    • Micrometric noncontact profiler for optical quality surfaces 

      Royo Royo, Santiago; Arasa, Josep; Caum Aregay, Jesús (2001-12-01)
      Article
      Restricted access - publisher's policy
      A non-contact technique for obtaining accurate profiles of optical qualitysurfaces with micrometric accuracy has been developed. The technique isbased on the Ronchi test principle, that is, on the study of the interaction ...

    • New cost-effective sensor for the characterization of automotive headlamps by measurements in the near field 

      Royo Royo, Santiago; Arranz, María Jesús; Arasa, Josep; Cattoen, Michel; Bosch, Thierry (Elsevier, 2006-12-01)
      Article
      Open Access
      Nowadays, European Normative regarding headlamp validation evaluates the photometric distribution of the source as a series of illumination values measured at a plane placed 25 m away from the light source. An innovative ...

    • Nociones básicas de deflectometría 

      Arasa, Josep; Royo Royo, Santiago (2002-06-01)
      Article
      Restricted access - publisher's policy

    • Submicrometric profilometry of nonrotationally symmetrical surfaces using the Ronchi test 

      Royo Royo, Santiago; Arasa, Josep; Caum Aregay, Jesús (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2000)
      Conference report
      Restricted access - publisher's policy
      The Ronchi test is a widely used tool in the optical shop, because of its capability of measuring wide-field profiles of optical quality surfaces through its important ray slope dynamic range. Although many applications ...