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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 29 — Oct. 10, 2014
  • pp: H35–H43

Innovative design of light collimator based on a freeform microlens array

Kung-Jeng Wang, Hsi-Chi Chen, Xiao-Rong Wu, Pao-Hung Lin, Yi-Yung Chen, Chia-Min Lin, Yin-Ti Chen, Allen Jong-Woei Whang, and Chun-Han Chou  »View Author Affiliations


Applied Optics, Vol. 53, Issue 29, pp. H35-H43 (2014)
http://dx.doi.org/10.1364/AO.53.000H35


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Abstract

In developing a daylighting system, the overall system efficiency is crucial. In the daylighting system, whether the light propagates parallel strongly affects the efficiency. In this paper, we simulate a multicurvature lens to collimate rays propagated from different angles. We describe a method based on a freeform microlens array, which increases transmission efficiency. Results show that with the freeform microlens array collimator, the light propagates provide at least 50.26% parallel and the efficiency increases by 24.76%, enhancing the core values of the daylighting system in building illumination.

© 2014 Optical Society of America

OCIS Codes
(220.2740) Optical design and fabrication : Geometric optical design
(230.3990) Optical devices : Micro-optical devices
(080.4225) Geometric optics : Nonspherical lens design

History
Original Manuscript: May 2, 2014
Manuscript Accepted: June 9, 2014
Published: July 29, 2014

Citation
Kung-Jeng Wang, Hsi-Chi Chen, Xiao-Rong Wu, Pao-Hung Lin, Yi-Yung Chen, Chia-Min Lin, Yin-Ti Chen, Allen Jong-Woei Whang, and Chun-Han Chou, "Innovative design of light collimator based on a freeform microlens array," Appl. Opt. 53, H35-H43 (2014)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-53-29-H35

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