OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 7 — Mar. 1, 2008
  • pp: 957–966

Optimization of freeform lightpipes for light-emitting-diode projectors

Florian Fournier and Jannick Rolland  »View Author Affiliations


Applied Optics, Vol. 47, Issue 7, pp. 957-966 (2008)
http://dx.doi.org/10.1364/AO.47.000957


View Full Text Article

Enhanced HTML    Acrobat PDF (8324 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Standard nonimaging components used to collect and integrate light in light-emitting-diode-based projector light engines such as tapered rods and compound parabolic concentrators are compared to optimized freeform shapes in terms of transmission efficiency and spatial uniformity. We show that the simultaneous optimization of the output surface and the profile shape yields transmission efficiency within the ├ętendue limit up to 90% and spatial uniformity higher than 95%, even for compact sizes. The optimization process involves a manual study of the trends for different shapes and the use of an optimization algorithm to further improve the performance of the freeform lightpipe.

© 2008 Optical Society of America

OCIS Codes
(120.2040) Instrumentation, measurement, and metrology : Displays
(230.3670) Optical devices : Light-emitting diodes
(220.2945) Optical design and fabrication : Illumination design
(220.4298) Optical design and fabrication : Nonimaging optics

ToC Category:
Optical Design and Fabrication

History
Original Manuscript: October 18, 2007
Revised Manuscript: December 10, 2007
Manuscript Accepted: December 14, 2007
Published: February 28, 2008

Citation
Florian Fournier and Jannick Rolland, "Optimization of freeform lightpipes for light-emitting-diode projectors," Appl. Opt. 47, 957-966 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-7-957

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited