Miniaturization of zoom lenses with a single moving element

We present an analysis of single-moving-element zoom lenses in the thin-lens limit and show how the length of these zoom lenses is determined by the zoom-factor, sensor-dimension and the depth-of-focus. By decreasing the sensor size and extending the depth-of-focus, the lengths of these zoom lenses...

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Bibliographic Details
Published in:Optics express 2009-04, Vol.17 (8), p.6118-6127
Main Authors: Demenikov, Mads, Findlay, Ewan, Harvey, Andrew R
Format: Article
Language:English
Subjects:
Computer-Aided Design
Equipment Design
Equipment Failure Analysis
Image Enhancement - instrumentation
Lenses
Miniaturization
Motion
Photography - instrumentation
Reproducibility of Results
Sensitivity and Specificity
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Summary:We present an analysis of single-moving-element zoom lenses in the thin-lens limit and show how the length of these zoom lenses is determined by the zoom-factor, sensor-dimension and the depth-of-focus. By decreasing the sensor size and extending the depth-of-focus, the lengths of these zoom lenses can be reduced significantly. As an example we present a ray-traced design of a miniaturized single-moving-element zoom lens with a 2.3 x zoom-factor and show how the exploitation of modern miniaturized detector array combined with wavefront coding enables a reduction in length of almost three orders-of-magnitude to 10mm.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.17.006118