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Appl Opt. 2002 Mar 1;41(7):1236-40.

Compact beam expander with linear gratings.

Author information

  • 1Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot, Israel. ferevita@wisemail.weizmann.ac.il

Abstract

Novel compact beam expanders that could be useful for applications such as providing light to flat panel displays are presented. They are based on a planar configuration in which three spatially linear gratings are recorded on one transparent substrate, so as to expand a narrow incoming beam in two dimensions. We present the design and recording procedures along with results, showing a relatively uniform intensity of the wide output beam. Such expanders can serve for illuminating flat panel displays.

PMID:
11899997
[PubMed - indexed for MEDLINE]
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