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Proceedings Paper

Study of 3D printing method for GRIN micro-optics devices
Author(s): P. J. Wang; J. A. Yeh; W. Y. Hsu; Y. C. Cheng; W. Lee; N. H. Wu; C. Y. Wu
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Paper Abstract

Conventional optical elements are based on either refractive or reflective optics theory to fulfill the design specifications via optics performance data. In refractive optical lenses, the refractive index of materials and radius of curvature of element surfaces determine the optical power and wavefront aberrations so that optical performance can be further optimized iteratively. Although gradient index (GRIN) phenomenon in optical materials is well studied for more than a half century, the optics theory in lens design via GRIN materials is still yet to be comprehensively investigated before realistic GRIN lenses are manufactured. In this paper, 3D printing method for manufacture of micro-optics devices with special features has been studied based on methods reported in the literatures. Due to the additive nature of the method, GRIN lenses in micro-optics devices seem to be readily achievable if a design methodology is available. First, derivation of ray-tracing formulae is introduced for all possible structures in GRIN lenses. Optics simulation program is employed for characterization of GRIN lenses with performance data given by aberration coefficients in Zernike polynomial. Finally, a proposed structure of 3D printing machine is described with conceptual illustration.

Paper Details

Date Published: 14 March 2016
PDF: 7 pages
Proc. SPIE 9759, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics IX, 975910 (14 March 2016); doi: 10.1117/12.2207957
Show Author Affiliations
P. J. Wang, National Tsing Hua Univ. (Taiwan)
J. A. Yeh, National Tsing Hua Univ. (Taiwan)
W. Y. Hsu, National Applied Research Labs. (Taiwan)
Y. C. Cheng, National Tsing Hua Univ. (Taiwan)
W. Lee, National Tsing Hua Univ. (Taiwan)
N. H. Wu, National Tsing Hua Univ. (Taiwan)
C. Y. Wu, National Tsing Hua Univ. (Taiwan)

Published in SPIE Proceedings Vol. 9759:
Advanced Fabrication Technologies for Micro/Nano Optics and Photonics IX
Georg von Freymann; Winston V. Schoenfeld; Raymond C. Rumpf, Editor(s)

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