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Optical Engineering

Novel, lightweight, and low-cost illumination system for line-scan cameras
Author(s): Simon C. Webster; H. T. Brown
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Paper Abstract

A novel optical system designed as an illuminator for line-scan cameras is described. This system produces a linear illumination pattern on a planar surface and uses plastic Fresnel lenses to reduce the system cost and dimensions. A custom-made optical fiber array, which acts as a 1-D diffuser, forms part of a high numerical aperture projection system providing a half-angle cone of illumination in excess of 35 deg. This wide range of incident angles allows the imaging of surfaces ranging from near-specular to Lambertian diffusers.

Paper Details

Date Published: 1 August 1992
PDF: 4 pages
Opt. Eng. 31(8) doi: 10.1117/12.58845
Published in: Optical Engineering Volume 31, Issue 8
Show Author Affiliations
Simon C. Webster, GEC Marconi Ltd. (United Kingdom)
H. T. Brown, Marconi Instruments Ltd. (United Kingdom)

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