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Opt Lett. 2016 Jun 15;41(12):2751-4. doi: 10.1364/OL.41.002751.

F-number matching method in light field microscopy using an elastic micro lens array.

Abstract

In light field microscopy (LFM), the F-number of the micro lens array (MLA) should be matched with the image-side F-number of the objective lens to utilize full resolution of an image sensor. We propose a new F-number matching method that can be applied to multiple objective lenses by using an elastic MLA. We fabricate an elastic MLA with polydimethylsiloxane (PDMS) using a micro contact printing method and address the strain for the F-number variation. The strain response is analyzed, and the LFM system with the elastic MLA is demonstrated. Our proposed system can increase the F-number up to 27.3% and can be applied to multiple objective lenses.

PMID:
27304280
DOI:
10.1364/OL.41.002751

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