Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Novel free-form optical surface design with spiral symmetry
Year:2011
Research Areas
  • Engineering
Information
Abstract
Manufacturing technologies as injection molding or embossing specify their production limits for minimum radii of the vertices or draft angle for demolding, for instance. These restrictions may limit the system optical efficiency or affect the generation of undesired artifacts on the illumination pattern when dealing with optical design. A novel manufacturing concept is presented here, in which the optical surfaces are not obtained from the usual revolution symmetry with respect to a central axis (z axis), but they are calculated as free-form surfaces describing a spiral trajectory around z axis. The main advantage of this new concept lies in the manufacturing process: a molded piece can be easily separated from its mold just by applying a combination of rotational movement around axis z and linear movement along axis z, even for negative draft angles. The general designing procedure will be described in detail.
International
Si
Congress
Novel Optical Systems Design and Optimization XIV, SPIE Optics + Photonics 2011
960
Place
San Diego, EEUU
Reviewers
Si
ISBN/ISSN
0277-786X
http://dx.doi.org/10.1117/12.893707
Start Date
22/08/2011
End Date
22/08/2011
From page
1
To page
10
PROCEEDINGS OF SPIE Volume 8129 Proceedings of SPIE, 0277-786X, v. 8129 Novel Optical Systems Design and Optimization XIV
Participants
  • Autor: Pablo Zamora Herranz (UPM)
  • Autor: Pablo Benitez Gimenez (UPM)
  • Autor: Juan Carlos Miñano Dominguez (UPM)
  • Autor: Juan F. Villaplana (Externo)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Ingeniería Óptica
  • Centro o Instituto I+D+i: Centro de Domótica Integral, CEDINT
  • Departamento: Electrónica Física
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)