OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 35 — Dec. 10, 2009
  • pp: 6627–6634

Freeform surface lens for LED uniform illumination

Zheng Zhenrong, Hao Xiang, and Liu Xu  »View Author Affiliations


Applied Optics, Vol. 48, Issue 35, pp. 6627-6634 (2009)
http://dx.doi.org/10.1364/AO.48.006627


View Full Text Article

Enhanced HTML    Acrobat PDF (1170 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

A method using a freeform surface lens for LED secondary optic design is proposed in this paper. By Snell’s Law, the differential equations are given to build the relationship between the normal direction of a freeform surface and its input/output ray vectors. Runge–Kutta formulas are used to calculate the differential equations to design the freeform surface. Moreover, the optical model for uniform illumination is simulated and optical performance is analyzed. A practical freeform surface lens for LED uniform illumination is fabricated using an injection molding method. By the process, our system demonstrates a uniform illumination with a divergence half-angle of 6 ° and an efficiency of 78.6%.

© 2009 Optical Society of America

OCIS Codes
(220.4610) Optical design and fabrication : Optical fabrication
(220.2945) Optical design and fabrication : Illumination design

ToC Category:
Optical Design and Fabrication

History
Original Manuscript: August 20, 2009
Revised Manuscript: October 27, 2009
Manuscript Accepted: October 27, 2009
Published: December 1, 2009

Citation
Zheng Zhenrong, Hao Xiang, and Liu Xu, "Freeform surface lens for LED uniform illumination," Appl. Opt. 48, 6627-6634 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-35-6627

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