Comparison of continuous and discrete frequency-versus-radius frequency-modulated reticles

James S. Taylor; Ronald G. Driggers; Carl E. Halford; Jeffrey S. Sanders; Steven T. Griffin; Michael Wellfare

doi:10.1364/AO.31.001638

Comparison of continuous and discrete frequency-versus-radius frequency-modulated reticles

James S. Taylor, Ronald G. Driggers, Carl E. Halford, Jeffrey S. Sanders, Steven T. Griffin, Michael Wellfare

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

We present a general expression for the transmission function of the discrete frequency-versus-radius reticle and compare such a reticle with the more common continuous reticle. A discrete form of the frequency-versus-radius reticle has an integer number of chopping cycles on a single radius. The discrete form limits the resolution of the reticle in the radial direction, but this limit is not severe for small-target images. However, since no phase reversal occurs, electronic processing is simplified.

Original language	English (US)
Pages (from-to)	1638-1640
Number of pages	3
Journal	Applied optics
Volume	31
Issue number	10
DOIs	https://doi.org/10.1364/AO.31.001638
State	Published - Apr 1992
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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10.1364/AO.31.001638

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AU - Taylor, James S.

AU - Driggers, Ronald G.

AU - Halford, Carl E.

AU - Sanders, Jeffrey S.

AU - Griffin, Steven T.

AU - Wellfare, Michael

PY - 1992/4

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AB - We present a general expression for the transmission function of the discrete frequency-versus-radius reticle and compare such a reticle with the more common continuous reticle. A discrete form of the frequency-versus-radius reticle has an integer number of chopping cycles on a single radius. The discrete form limits the resolution of the reticle in the radial direction, but this limit is not severe for small-target images. However, since no phase reversal occurs, electronic processing is simplified.

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Comparison of continuous and discrete frequency-versus-radius frequency-modulated reticles

Abstract

ASJC Scopus subject areas

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