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Proceedings Paper

Design of light guide sleeve on hyperspectral imaging system for skin diagnosis
Author(s): Yung-Jhe Yan; Chao-Hsin Chang; Ting-Wei Huang; Hou-Chi Chiang; Jeng-Fu Wu ; Mang Ou-Yang
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Paper Abstract

A hyperspectral imaging system is proposed for early study of skin diagnosis. A stable and high hyperspectral image quality is important for analysis. Therefore, a light guide sleeve (LGS) was designed for the embedded on a hyperspectral imaging system. It provides a uniform light source on the object plane with the determined distance. Furthermore, it can shield the ambient light from entering the system and increasing noise. For the purpose of producing a uniform light source, the LGS device was designed in the symmetrical double-layered structure. It has light cut structures to adjust distribution of rays between two layers and has the Lambertian surface in the front-end to promote output uniformity. In the simulation of the design, the uniformity of illuminance was about 91.7%. In the measurement of the actual light guide sleeve, the uniformity of illuminance was about 92.5%.

Paper Details

Date Published: 23 August 2017
PDF: 8 pages
Proc. SPIE 10375, Current Developments in Lens Design and Optical Engineering XVIII, 1037503 (23 August 2017); doi: 10.1117/12.2273212
Show Author Affiliations
Yung-Jhe Yan, National Chiao Tung Univ. (Taiwan)
Chao-Hsin Chang, National Chiao Tung Univ. (Taiwan)
Ting-Wei Huang, National Chiao Tung Univ. (Taiwan)
Hou-Chi Chiang, National Chiao Tung Univ. (Taiwan)
Jeng-Fu Wu , National Chung-Shan Institute of Science and Technology (Taiwan)
Mang Ou-Yang, National Chiao Tung Univ. (Taiwan)

Published in SPIE Proceedings Vol. 10375:
Current Developments in Lens Design and Optical Engineering XVIII
R. Barry Johnson; Virendra N. Mahajan; Simon Thibault, Editor(s)

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