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Optical Engineering • Open Access

Design and optimization for total internal reflection collimators based on slope-error tolerance analysis
Author(s): Tao Luo; Gang Wang

Paper Abstract

This work provides a design and optimization method for total internal reflection (TIR) lenses based on slope-error tolerance analysis. This work focuses on how the slope error impacts the central luminous intensity (CLI) of a TIR lens. The concentration standard index (CSI) is introduced as a metric for analyzing the CLI, both locally and globally. A unique design method for improved manufacturing tolerance is introduced, and a way of optimizing the TIR lens design in order to achieve a better slope-error tolerance is presented by evaluating the CSI. Using the design method, a TIR lens is fabricated and this theoretical approach is then demonstrated by a comparison between the tested contours of the TIR surfaces.

Paper Details

Date Published: 2 February 2016
PDF: 8 pages
Opt. Eng. 55(2) 025103 doi: 10.1117/1.OE.55.2.025103
Published in: Optical Engineering Volume 55, Issue 2
Show Author Affiliations
Tao Luo, Sun Yat-Sen Univ. (China)
Gang Wang, Sun Yat-Sen Univ. (China)

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