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1979•Optica Acta International Journal of OpticsRequires access

A Study of the Possibility of Image Optimization by Apodization Filters in Optical Systems with Residual Aberrations

Marı́a J. Yzuel, F. Calvo

Open publisher page 32 citations

Abstract

A systematic study to optimize the image in real optical systems, by fitting the filter transmission function on the exit pupil to different polynomial types is developed. The systems we have treated, whose residual aberrations are larger than the tolerance values, could be carried to tolerance by the use of an adequate filter, making the Strehl ratio higher than 0·8. The influence of the apodization filter on the optical transfer function is also studied.

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What this paper is about

A systematic study to optimize the image in real optical systems, by fitting the filter transmission function on the exit pupil to different polynomial types is developed. The systems we have treated, whose residual aberrations are larger than the tolerance values, could be carried to tolerance by the use of an adequate filter, making the Strehl ratio higher than 0·8. The influence of the apodization filter on the optical transfer function is also studied.

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Available abstract

A systematic study to optimize the image in real optical systems, by fitting the filter transmission function on the exit pupil to different polynomial types is developed. The systems we have treated, whose residual aberrations are larger than the tolerance values, could be carried to tolerance by the use of an adequate filter, making the Strehl ratio higher than 0·8. The influence of the apodization filter on the optical transfer function is also studied.

Key concepts: Apodization, Strehl ratio, Residual, Optical transfer function, Filter (signal processing), Pupil function, Point spread function, Optics

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