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Proceedings Paper

Iterative correction of holographic lenses
Author(s): Oliver R. Falkenstoerfer; T. Keinonen; Norbert Lindlein; Johannes Schwider; Norbert Streibl
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Paper Abstract

Holographic optical lens elements (HOEs) are volume grating in thick material such as dichromated gelatine (DCG) which suffer from the wavelength mismatch between the recording process and the practical application e.g., at laser diode wavelengths. Wavelength mismatch between recording and reconstruction is caused by the fact that the best recording materials are sensitive only in the blue region of the spectrum. The advantage of volume gratings (thickness 13 micrometers ) is the large angle of deflection of the first diffraction order with a high diffraction efficiency. An optimized recording geometry using only spherical wave fronts allows on the one hand for the elimination of one of the third order aberrations (predominantly: astigmatism) or on the other hand for the fulfillment of the Bragg condition. To optimize the properties of holographic optical lens elements with one aspheric recording wave a kind of iterative procedure for the manufacturing is proposed. Each iteration consists of three different steps.

Paper Details

Date Published: 12 October 1994
PDF: 2 pages
Proc. SPIE 2169, Nonconventional Optical Imaging Elements, (12 October 1994); doi: 10.1117/12.190229
Show Author Affiliations
Oliver R. Falkenstoerfer, Univ. Erlangen-Nuernberg (Germany)
T. Keinonen, Univ. Erlangen-Nuernberg (Germany)
Norbert Lindlein, Univ. Erlangen-Nuernberg (Germany)
Johannes Schwider, Univ. Erlangen-Nuernberg (Germany)
Norbert Streibl, Univ. Erlangen-Nuernberg (Germany)


Published in SPIE Proceedings Vol. 2169:
Nonconventional Optical Imaging Elements
Jerzy Nowak; Marek Zajac, Editor(s)

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