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Pneumatically Actuated Thin Glass Microlens for On-Chip Multi-Magnification Observations

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dc.contributor.author Aishan, Yusufu
dc.contributor.author Yalikun, Yaxiaer
dc.contributor.author Tanaka, Yo
dc.date.accessioned 2020-12-04T09:14:37Z
dc.date.available 2020-12-04T09:14:37Z
dc.date.issued 2020-08-23
dc.identifier.uri http://hdl.handle.net/10061/14167
dc.description.abstract This paper presents a self-contained micro-optical system that is magnification-controlled by adjusting the positions of the microlens in the device via pneumatic air pressure. Unlike conventional dynamic microlenses made from a liquid or polydimethylsiloxane (PDMS) that change their shapes via external actuation, this system combines a fixed-curvature glass microlens, an inflatable PDMS layer, and the external pneumatic air pressure supply as an actuator. This device showed several advantages, including stable inflation, firm structure, and light weight; it achieved a larger displacement using the glass microlens structure than has been reported before. This fixed-curvature microlens was made from 120 µm-thick flat thin glass slides, and the system magnification was manipulated by the deflection of a 100 µm-thick PDMS layer to alter the distance from the microlens to the microfluidic channel. The system magnification power was proportional to the air pressure applied to the device, and with a 2.5 mbar air pressure supply, a 2.2X magnification was achieved. This optical system is ideal for combining with high resolving power microscopy for various short working distance observation tasks, and it is especially beneficial for various chip-based analyses. ja_JP
dc.language.iso en ja_JP
dc.publisher MDPI ja_JP
dc.relation.isreplacedby https://www.mdpi.com/2076-0825/9/3/73 ja_JP
dc.rights © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). ja_JP
dc.subject multi-magnification ja_JP
dc.subject thin glass microlens ja_JP
dc.subject pneumatic actuation ja_JP
dc.subject microfluidic ja_JP
dc.title Pneumatically Actuated Thin Glass Microlens for On-Chip Multi-Magnification Observations ja_JP
dc.type.nii Journal Article ja_JP
dc.textversion none ja_JP
dc.identifier.eissn 2076-0825
dc.identifier.jtitle Actuators ja_JP
dc.identifier.volume 9 ja_JP
dc.identifier.issue 3 ja_JP
dc.relation.doi 10.3390/act9030073 ja_JP
dc.identifier.NAIST-ID 74654880 ja_JP

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