Half-millimeter-range vertically scanning microlenses for microscopic focusing applications

Ankur Jain, Huikai Xie

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

14 Citations (Scopus)

Abstract

This paper presents the design, fabrication and operation of a new class of microlens scanners that can generate large vertical piston motion at low actuation voltages. These scanners are needed by endoscopic bio-imaging applications such as optical coherence microscopy (OCM) which require microlenses to axially scan their focal planes by 0.5 to 2 mm. Photoresist reflow technique was used to form microlenses on lens holders that are integrated with large-vertical-displacement (LVD) microactuators. The lens holders are fabricated using a modified post-CMOS micromachining process which can provide additional thermal isolation to the polymer microlens and form a transparent oxide mesh within the hollow lens-holders to enable formation of larger polymer microlenses. These scanners have demonstrated a maximum vertical displacement of 0.71 mm at an actuation voltage of 23 V.

Original languageEnglish
Title of host publication2006 Solid-State Sensors, Actuators, and Microsystems Workshop, Hilton Head 2006
EditorsLeland Spangler, Thomas W. Kenny
PublisherTransducer Research Foundation
Pages74-77
Number of pages4
ISBN (Electronic)0964002469, 9780964002463
Publication statusPublished - 2006
Externally publishedYes
Event13th Solid-State Sensors, Actuators, and Microsystems Workshop, Hilton Head 2006 - Hilton Head Island, United States
Duration: 4 Jun 20068 Jun 2006

Publication series

NameTechnical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop

Conference

Conference13th Solid-State Sensors, Actuators, and Microsystems Workshop, Hilton Head 2006
Country/TerritoryUnited States
CityHilton Head Island
Period4/06/068/06/06

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