Design of a variable diffractive zoom lens for interferometric purposes

Alexander Bielke; Christof Pruss; Wolfgang Osten

doi:10.1117/1.OE.56.1.014104

9 January 2017 Design of a variable diffractive zoom lens for interferometric purposes

Alexander Bielke, Christof Pruss, Wolfgang Osten

Author Affiliations +

Optical Engineering, Vol. 56, Issue 1, 014104 (January 2017). https://doi.org/10.1117/1.OE.56.1.014104

Abstract

We present the design of a compact zoom-lens for the realization of a space-limited interferometer objective with a large range of possible sphere radii. Based on the idea of Alvarez to change the lens-power by shifting two glass plates with cubic surface functions along their lateral axis and the implementation with diffractive optical elements by Lohmann, we realized a focal shift between 200 and 360 mm with two elements in a single shift setup. Additionally, astigmatism can be compensated by moving the plates in the related orthogonal direction as required for the measurement of anamorphic, aspheric, or freeform lenses.

Citation Download Citation

Alexander Bielke, Christof Pruss, and Wolfgang Osten "Design of a variable diffractive zoom lens for interferometric purposes," Optical Engineering 56(1), 014104 (9 January 2017). https://doi.org/10.1117/1.OE.56.1.014104

Received: 27 October 2016; Accepted: 13 December 2016; Published: 9 January 2017

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