Novel free-form optical surface design with spiral symmetry

Zamora Herranz, Pablo and Benitez Gimenez, Pablo and Miñano Dominguez, Juan Carlos and Vilaplana, J. (2011). Novel free-form optical surface design with spiral symmetry. In: "Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VIII", 21/08/2011 - 22/08/2011, San Diego, EEUU. pp. 1-10. https://doi.org/10.1117/12.893707.

Description

Title: Novel free-form optical surface design with spiral symmetry
Author/s:
  • Zamora Herranz, Pablo
  • Benitez Gimenez, Pablo
  • Miñano Dominguez, Juan Carlos
  • Vilaplana, J.
Item Type: Presentation at Congress or Conference (Article)
Event Title: Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VIII
Event Dates: 21/08/2011 - 22/08/2011
Event Location: San Diego, EEUU
Title of Book: Proceedings of Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VIII
Date: 2011
Subjects:
Faculty: Centro de Domótica Integral (CeDInt) (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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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

More information

Item ID: 12841
DC Identifier: http://oa.upm.es/12841/
OAI Identifier: oai:oa.upm.es:12841
DOI: 10.1117/12.893707
Deposited by: Memoria Investigacion
Deposited on: 13 Nov 2012 10:37
Last Modified: 21 Apr 2016 12:10
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