An adaptive liquid lens with radial interdigitated electrode

    Authors

    M. Xu; D. M. Xu; H. Ren; I. S. Yoo;Q. H. Wang

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    J. Opt.

    Keywords

    adaptive lens; dielectrophoretic force; tunable focus; imaging; MICROLENS; DIELECTROPHORESIS; MANIPULATION; CRYSTAL; DROPLET; VOLTAGE; FORCE; Optics

    Abstract

    A newly patterned electrode is designed for a dielectric liquid lens. The electrode has a radial interdigitated structure which can provide a symmetrical-nonuniform fringing field. This electric field can effectively deform the shape of a dielectric liquid droplet in radial direction, causing the focal length of the liquid droplet to change. For a lens using glycerol as the droplet and optical oil (SL-5267) as the surrounding medium, its focal length (f) can be tuned in the range of similar to -8.28 < = f < = similar to -4.4 mm, when the applied voltage is changed from 0 to 120 V-rms. In contrast to previous approaches, the liquid lens with radial interdigitated electrode has the advantages of scalable aperture size, wide variability of focal length, and good optical characteristics. Moreover, the driving voltage is insensitive to the size of the droplet.

    Journal Title

    Journal of Optics

    Volume

    16

    Issue/Number

    10

    Publication Date

    1-1-2014

    Document Type

    Article

    Language

    English

    First Page

    7

    WOS Identifier

    WOS:000343665200043

    ISSN

    2040-8978

    Share

    COinS