@inproceedings{ac12df8636c14de8827ffcb9ef24791e,
title = "Non-planar illumination sources for deflectometry",
abstract = "We introduce the design of a highly compact, non-planar illumination source for deflectometry. The source emits uniform and Lambertian light from a curved area resembling the inner bore of a cylinder. When equipped with motion hardware, the ring source behaves like a spatially modulated screen with a pixel pitch comparable to that of a typical LCD monitor. If this source, a detector, and test optic are coaxially aligned, then on-axis deflectometry measurements are possible for axicons and centrally obscured, convex optics. This paper highlights the illumination design behind a cylindrical ring source and its implementation as a prototype in the visible spectrum.",
keywords = "Convex Optics, Deflectometry, Ray Recirculation",
author = "Henry Quach and Hyukmo Kang and Heejoo Choi and Kim, {Dae Wook}",
note = "Publisher Copyright: {\textcopyright} 2020 SPIE.; Optical Manufacturing and Testing XIII 2020 ; Conference date: 24-08-2020 Through 04-09-2020",
year = "2020",
doi = "10.1117/12.2568168",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Kim, {Dae Wook} and Rolf Rascher",
booktitle = "Optical Manufacturing and Testing XIII",
}