Micro-lens aperture array for enhanced thin-film imaging using luminescent concentrators

Oliver Bimber, Indrajit Kurmi, David Schedl

Research output: Contribution to journalArticlepeer-review

Abstract

We present a 300 μm thick optical Söller collimator realized by X-ray lithography on a PMMA wafer which, when paired with luminescent concentrator films, forms the first complete prototype of a short-distance, flexible, scalable imaging system that is less than 1 mm thick. We describe two ways of increasing the light-gathering ability of the collimator by using hexagonal aperture cells and embedded micro-lenses, evaluate a new micro-lens aperture array (MLAA) for proof of concept, and analyze the optical imaging properties of flexible MLAAs when realized as thin films.
Original languageEnglish
Pages (from-to)29253-29261
Number of pages9
JournalOptics Express
Volume26
Issue number22
DOIs
Publication statusPublished - Oct 2018

Fields of science

  • 102 Computer Sciences
  • 102003 Image processing
  • 102008 Computer graphics
  • 102015 Information systems
  • 102020 Medical informatics
  • 103021 Optics

JKU Focus areas

  • Engineering and Natural Sciences (in general)

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