Optimized planar micro-optic concentrator design

Jui-Wen Pan, Yu Chung Su, Sheng Yi Lee

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The structural parameters of a planar micro-optic concentrator are optimized. First, the direct-loss is minimized by altering the relationship between the f-number of the lenslet, the angle of the micro-structure and the ray paths in the planar micro-optic concentrator. Second, the size of the micro-structure is made equal to the mini-blur size of the lenslet in order to reduce the non-direct loss. Last, the f-number and the entrance pupil diameter of the lenslet are determined by the relationships among the f-number, the entrance pupil diameter, the optical efficiency, the acceptance angle and the thickness of the planar micro-optic concentrator from the optical simulation results. For an optimized planar micro-optic concentrator with a 300 concentration, the f-number of the lenslet, the EPD of the lenslet, the angle of the micro-structure and the thickness of the planar micro-optic concentrator are 2.6, 1.49 mm, 120 degrees and 5.97 mm, respectively. For micro-structures 28.95 μm, 51.24 μm and 88.29 μm in size, the half acceptance angles of the planar micro-optic concentrator are 0.115 degrees, 0.275 degrees and 0.55 degrees, respectively, and the optical efficiencies are 81.23%, 71.92% and 50.02%, respectively.

Original languageEnglish
Article number065901
JournalJournal of Optics (United Kingdom)
Volume18
Issue number6
DOIs
StatePublished - 1 Jun 2016

Keywords

  • concentrator
  • illumination design
  • nonimaging optics

Fingerprint Dive into the research topics of 'Optimized planar micro-optic concentrator design'. Together they form a unique fingerprint.

Cite this