Skip navigation
Skip navigation

Fabricating low cost and high performance elastomer lenses using hanging droplets

Lee, W. M.; Upadhya, A.; Reece, P. J.; Phan, Tri Giang

Description

Existing methods for low cost lenses using parallel mold stamping and high temperature reflow requires complex engineering controls to produce high quality lenses. These manufacturing techniques rely on expensive equipment. In this paper, we propose a low cost (< $ 0.01 per pc) flexible moldless lens fabrication method based on curing a hanging transparent polydimethylsiloxane (PDMS) elastomer droplet on a curved substrate. Additional deposition of hanging droplets in the same manner led to a...[Show more]

dc.contributor.authorLee, W. M.
dc.contributor.authorUpadhya, A.
dc.contributor.authorReece, P. J.
dc.contributor.authorPhan, Tri Giang
dc.date.accessioned2016-06-15T01:42:34Z
dc.date.available2016-06-15T01:42:34Z
dc.identifier.issn2156-7085
dc.identifier.urihttp://hdl.handle.net/1885/104113
dc.description.abstractExisting methods for low cost lenses using parallel mold stamping and high temperature reflow requires complex engineering controls to produce high quality lenses. These manufacturing techniques rely on expensive equipment. In this paper, we propose a low cost (< $ 0.01 per pc) flexible moldless lens fabrication method based on curing a hanging transparent polydimethylsiloxane (PDMS) elastomer droplet on a curved substrate. Additional deposition of hanging droplets in the same manner led to a substantial increase in the lens curvature and concomitant decrease in the focal length of the PDMS lenses down to ~2 mm. The shortest focal length lenses were shown to collimate light from a bare light emitting diode (LED) and image microscopic structures down to around 4 µm with 160x magnification. Our hanging droplet lens fabrication technique heralds a new paradigm in the manufacture of low cost, high performance optical lenses for the masses. Using these lenses, we were able to transform an ordinary commercial smartphone camera into a low-cost digital dermascope (60x magnification) that can readily visualize microscopic structures on skin such as sweat pores.
dc.format10 pages
dc.publisherOptical Society of America
dc.rights© 2014 Optical Society of America
dc.sourceBiomedical Optics Express
dc.subjectimaging systems
dc.subjectinstrumentation, measurement, and metrology
dc.subjectmicroscopy
dc.subjectoptical fabrication
dc.titleFabricating low cost and high performance elastomer lenses using hanging droplets
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume5
dcterms.dateAccepted2014-04-05
dc.date.issued2014-05-01
local.identifier.absfor090606
local.identifier.ariespublicationU5431022xPUB143
local.publisher.urlhttp://www.osa.org/
local.type.statusPublished Version
local.contributor.affiliationLee, Woei Ming (Steve), College of Engineering and Computer Science, College of Engineering and Computer Science, Research School of Engineering, The Australian National University
local.contributor.affiliationUpadhya, Avinash, College of Engineering and Computer Science, College of Engineering and Computer Science, Research School of Engineering, The Australian National University
local.contributor.affiliationReece, Peter, University of New South Wales, Australia
local.contributor.affiliationPhan, Tri Giang , University of New South Wales, Australia
local.identifier.essn2156-7085
local.bibliographicCitation.issue5
local.bibliographicCitation.startpage1626
local.bibliographicCitation.lastpage1635
local.identifier.doi10.1364/BOE.5.001626
local.identifier.absseo970109
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

Download

There are no files associated with this item.


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  19 May 2020/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator