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Proceedings Paper

Zoom lens principles and types
Author(s): Ellis Betensky
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Paper Abstract

Relaxation of various restrictions has led to new zoom lens types which include multiple zooming groups and advanced concepts for focusing. New designs can now rival fixed focal length lenses for most applications, and with the use of aspherics can be low cost. Gaussian optics and primary aberrations are used to obtain good starting design types.

Paper Details

Date Published: 1 July 1992
PDF: 29 pages
Proc. SPIE 10263, Lens Design: A Critical Review, 1026307 (1 July 1992); doi: 10.1117/12.131970
Show Author Affiliations
Ellis Betensky, Opcon Associates, Inc. (Canada)

Published in SPIE Proceedings Vol. 10263:
Lens Design: A Critical Review
Warren J. Smith, Editor(s)

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