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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 4 — Feb. 13, 2012
  • pp: 4583–4602

3D scanning characteristics of an amorphous silicon position sensitive detector array system

Javier Contreras, Luis Gomes, Sergej Filonovich, Nuno Correia, Elvira Fortunato, Rodrigo Martins, and Isabel Ferreira  »View Author Affiliations

Optics Express, Vol. 20, Issue 4, pp. 4583-4602 (2012)

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The 3D scanning electro-optical characteristics of a data acquisition prototype system integrating a 32 linear array of 1D amorphous silicon position sensitive detectors (PSD) were analyzed. The system was mounted on a platform for imaging 3D objects using the triangulation principle with a sheet-of-light laser. New obtained results reveal a minimum possible gap or simulated defect detection of approximately 350 μm. Furthermore, a first study of the angle for 3D scanning was also performed, allowing for a broad range of angles to be used in the process. The relationship between the scanning angle of the incident light onto the object and the image displacement distance on the sensor was determined for the first time in this system setup. Rendering of 3D object profiles was performed at a significantly higher number of frames than in the past and was possible for an incident light angle range of 15 ° to 85 °.

© 2012 OSA

OCIS Codes
(040.1240) Detectors : Arrays
(110.6880) Imaging systems : Three-dimensional image acquisition
(150.6910) Machine vision : Three-dimensional sensing
(160.2750) Materials : Glass and other amorphous materials
(280.4788) Remote sensing and sensors : Optical sensing and sensors
(310.6845) Thin films : Thin film devices and applications

ToC Category:

Original Manuscript: November 10, 2011
Revised Manuscript: January 6, 2012
Manuscript Accepted: January 16, 2012
Published: February 9, 2012

Javier Contreras, Luis Gomes, Sergej Filonovich, Nuno Correia, Elvira Fortunato, Rodrigo Martins, and Isabel Ferreira, "3D scanning characteristics of an amorphous silicon position sensitive detector array system," Opt. Express 20, 4583-4602 (2012)

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