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Proceedings Paper

Modeling of diffractive optical elements for lens design
Author(s): Juan L. Rayces; Lan Lebich
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Paper Abstract

The use of a standard aspheric profile to describe conventional optical elements in lens design programs has advantages such as independent verification of lens system performance by different individuals, ease of interpretation by different manufacturers, etc. A model of diffractive optical element is proposed for consideration as a standard form to have similar benefits. Diffractive elements are characterized here by (1) the equation of the supporting surface (substrate), and (2) the phase function. The phase function itself consists of two terms: (a) the stigmatic phase term, and (b) the astigmatic phase term. The stigmatic phase term is a rotationally symmetric function and is related to the property of the diffraction element to image free from aberration one axial point onto another, as in holograms, at a specific (reference) wavelength. The astigmatic phase term is an arbitrary function of the space coordinates, it takes several forms: it can impart aspheric deformations (or corrections) to incident wave fronts or it can be used to model different types of gratings.

Paper Details

Date Published: 25 November 1993
PDF: 10 pages
Proc. SPIE 2000, Current Developments in Optical Design and Optical Engineering III, (25 November 1993); doi: 10.1117/12.163660
Show Author Affiliations
Juan L. Rayces, OCA Applied Optics, Inc. (United States)
Lan Lebich, OCA Applied Optics, Inc. (United States)

Published in SPIE Proceedings Vol. 2000:
Current Developments in Optical Design and Optical Engineering III
Robert E. Fischer; Warren J. Smith, Editor(s)

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