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Tunable Liquid Optical Devices with Thermoelectric and Electrohydrodynamic Actuators.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Tunable Liquid Optical Devices with Thermoelectric and Electrohydrodynamic Actuators./
Author:	Ousati Ashtiani, Alireza.
Description:	1 online resource (148 pages)
Notes:	Source: Dissertation Abstracts International, Volume: 78-12(E), Section: B.
Contained By:	Dissertation Abstracts International78-12B(E).
Subject:	Electrical engineering. -
Online resource:	click for full text (PQDT)
ISBN:	9780355106411

Tunable Liquid Optical Devices with Thermoelectric and Electrohydrodynamic Actuators.
Ousati Ashtiani, Alireza.

Tunable Liquid Optical Devices with Thermoelectric and Electrohydrodynamic Actuators. - 1 online resource (148 pages)

Source: Dissertation Abstracts International, Volume: 78-12(E), Section: B.

Thesis (Ph.D.)

Includes bibliographical references

The advent of affordable miniaturized digital imaging devices has revolutionized many aspects of modern life. Most of these imaging devices still rely on old fashioned voice coil motors to displace the lens and form a sharp image. In order to decrease size and power consumption and increase focusing speed of small cameras, liquid tunable microlens alternatives have been proposed. Here, two types of focus tunable liquid microlenses are studied. The first type is a thermoelectrically actuated liquid microlens, and the second type uses an electrohydrodynamic actuator to move and center a liquid microlens. The first design demonstrates a sub-second response time, which makes it an agile device among thermally actuated microlenses. The second design harnesses an easy to fabricate, planar structure to realize a tunable microlens and center the liquid droplet. In both designs, focal length of the microlens has been measured. Moreover, optical aberrations of the thermally actuated microlens have been evaluated.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355106411Subjects--Topical Terms:

596380
Electrical engineering.
Index Terms--Genre/Form:

554714
Electronic books.

Tunable Liquid Optical Devices with Thermoelectric and Electrohydrodynamic Actuators.
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100 1 $a Ousati Ashtiani, Alireza. $3 1178888
245 1 0 $a Tunable Liquid Optical Devices with Thermoelectric and Electrohydrodynamic Actuators.
264 0 $c 2016
300 $a 1 online resource (148 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
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500 $a Source: Dissertation Abstracts International, Volume: 78-12(E), Section: B.
500 $a Adviser: Hongrui Jiang.
502 $a Thesis (Ph.D.) $c The University of Wisconsin - Madison $d 2016.
504 $a Includes bibliographical references
520 $a The advent of affordable miniaturized digital imaging devices has revolutionized many aspects of modern life. Most of these imaging devices still rely on old fashioned voice coil motors to displace the lens and form a sharp image. In order to decrease size and power consumption and increase focusing speed of small cameras, liquid tunable microlens alternatives have been proposed. Here, two types of focus tunable liquid microlenses are studied. The first type is a thermoelectrically actuated liquid microlens, and the second type uses an electrohydrodynamic actuator to move and center a liquid microlens. The first design demonstrates a sub-second response time, which makes it an agile device among thermally actuated microlenses. The second design harnesses an easy to fabricate, planar structure to realize a tunable microlens and center the liquid droplet. In both designs, focal length of the microlens has been measured. Moreover, optical aberrations of the thermally actuated microlens have been evaluated.
520 $a In addition to liquid microlenses, a novel liquid tunable optical phase shifter is introduced. In this design, with the aid of an embedded electrowetting actuator, two liquid layers with different refractive indices are intermingled to create a tunable optical phase shifter that could be very useful in various optical imaging and instrumentation devices.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Electrical engineering. $3 596380
650 4 $a Mechanical engineering. $3 557493
650 4 $a Engineering. $3 561152
655 7 $a Electronic books. $2 local $3 554714
690 $a 0544
690 $a 0548
690 $a 0537
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a The University of Wisconsin - Madison. $b Electrical Engineering. $3 1178889
773 0 $t Dissertation Abstracts International $g 78-12B(E).
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10248187 $z click for full text (PQDT)