Design of light guide sleeve on hyperspectral imaging system for skin diagnosis

Yung Jhe Yan, Chao Hsin Chang, Ting Wei Huang, Hou Chi Chiang, Jeng Fu Wu, Yang-Mang Ou

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

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%.

Original languageEnglish
Title of host publicationCurrent Developments in Lens Design and Optical Engineering XVIII
EditorsVirendra N. Mahajan, Simon Thibault, R. Barry Johnson
PublisherSPIE
ISBN (Electronic)9781510612075
DOIs
StatePublished - 1 Jan 2017
EventCurrent Developments in Lens Design and Optical Engineering XVIII 2017 - San Diego, United States
Duration: 7 Aug 20178 Aug 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10375
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceCurrent Developments in Lens Design and Optical Engineering XVIII 2017
Country/TerritoryUnited States
CitySan Diego
Period7/08/178/08/17

Keywords

  • Hyperspectral image
  • Light guide
  • Uniform illumination

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