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Proceedings Paper

Continuously Variable Periodic Test Target
Author(s): P. Andres; J . Ojeda-Castareda; J. C. Barreiro
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Paper Abstract

The modulus of the optical transfer function (MTF) of the eye or any other optical system is usually evaluated by imaging either several gratings each with different spatial frequency, or a single test target having patterns with different frequencies (USAF resolution chart). In any of these two usual procedures, the measurement of the MTF is made at discrete values of the spatial frequency. Here we describe a method based on the self-imaging phenomenon for producing periodic patterns with a continuous variation, within a certain interval, of the spatial frequency.

Paper Details

Date Published: 1 January 1987
PDF: 2 pages
Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); doi: 10.1117/12.967249
Show Author Affiliations
P. Andres, Universidad de Valencia (Spain)
J . Ojeda-Castareda, INAOE (Spain)
J. C. Barreiro, Universidad de Valencia (Spain)


Published in SPIE Proceedings Vol. 0813:
Optics and the Information Age

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