Continuously Variable Periodic Test Target

P. Andres; J . Ojeda-Castareda; J. C. Barreiro

doi:10.1117/12.967249

1 January 1987 Continuously Variable Periodic Test Target

P. Andres, J . Ojeda-Castareda, J. C. Barreiro

Proceedings Volume 0813, Optics and the Information Age; (1987) https://doi.org/10.1117/12.967249
Event: 14th Congress of the International Commission for Optics, 1987, Quebec, Canada

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.

Citation Download Citation

P. Andres, J . Ojeda-Castareda, and J. C. Barreiro "Continuously Variable Periodic Test Target", Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); https://doi.org/10.1117/12.967249

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