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Proceedings Paper

Construction of a detection system with a wide field of view
Author(s): T. Verker; Naftali Schweitzer; Jack Broder; Naftali Paul Eisenberg
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Paper Abstract

Filters used in communication systems in the atmosphere are usually of interference-filter type or of step-filter type. The major disadvantage of the interference filter is the limitation on the maximum incidence angle. In the step filter, the incidence angle is not limited. However, it has a wide spectral bandwidth. Therefore more background radiation enters the detector and as a result more noise is generated. The aim of this project is to design and fabricate an interference filter with a wide field of view. The filter is fabricated by evaporating thin films of suitable materials onto a transparent hollow hemisphere. The center of the detector will coincide with the center of the hemisphere. In this structure, the incident radiation always hits the filter at small angles independent of the transmitter position, so that the signal will always reach the detector.

Paper Details

Date Published: 22 September 1997
PDF: 5 pages
Proc. SPIE 3110, 10th Meeting on Optical Engineering in Israel, (22 September 1997); doi: 10.1117/12.281359
Show Author Affiliations
T. Verker, Jerusalem College of Technology (Israel)
Naftali Schweitzer, Jerusalem College of Technology (Israel)
Jack Broder, Jerusalem College of Technology (Israel)
Naftali Paul Eisenberg, Jerusalem College of Technology (Israel)

Published in SPIE Proceedings Vol. 3110:
10th Meeting on Optical Engineering in Israel
Itzhak Shladov; Stanley R. Rotman, Editor(s)

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