Spiral optical designs for nonimaging applications

Zamora Herranz, Pablo and Benitez Gimenez, Pablo and Miñano Dominguez, Juan Carlos and Vilaplana, J. and Buljan, Marina (2011). Spiral optical designs for nonimaging applications. In: "Illumination Optics II", 07/09/2011 - 08/09/2011, Marsella, Francia. pp. 1-12.


Title: Spiral optical designs for nonimaging applications
  • Zamora Herranz, Pablo
  • Benitez Gimenez, Pablo
  • Miñano Dominguez, Juan Carlos
  • Vilaplana, J.
  • Buljan, Marina
Item Type: Presentation at Congress or Conference (Article)
Event Title: Illumination Optics II
Event Dates: 07/09/2011 - 08/09/2011
Event Location: Marsella, Francia
Title of Book: Proceedings of Illumination Optics II
Date: 2011
Volume: 8170
Faculty: Centro de Domótica Integral (CeDInt) (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Manufacturing technologies as injection molding or embossing specify their production limits for minimum radii of the vertices or draft angle for demolding, for instance. In some demanding nonimaging applications, these restrictions may limit the system optical efficiency or affect the generation of undesired artifacts on the illumination pattern. 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. Some of these spiral symmetry examples will be shown here, as well as their simulated results.

More information

Item ID: 12828
DC Identifier: http://oa.upm.es/12828/
OAI Identifier: oai:oa.upm.es:12828
Deposited by: Memoria Investigacion
Deposited on: 13 Nov 2012 11:15
Last Modified: 21 Apr 2016 12:07
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