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Proceedings Paper

Liquid lens enabling real-time focus and tilt compensation for optical image stabilization in camera modules
Author(s): Eric Simon; Pierre Craen; Hilario Gaton; Olivier Jacques-Sermet; Frédéric Laune; Julien Legrand; Mathieu Maillard; Nicolas Tallaron; Nicolas Verplanck; Bruno Berge
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Paper Abstract

A new generation of liquid lenses based on electrowetting has been developed, using a multi-electrode design, enabling to induce optical tilt and focus corrections in the same component. The basic principle is to rely on a conical shape for supporting the liquid interface, the conical shape insuring a restoring force for the liquid liquid interface to come at the center position. The multi-electrode design enables to induce an average tilt of the liquid liquid interface when a bias voltage is applied to the different electrodes. This tilt is reversible, vanishing when voltage bias is cancelled. Possible application of this new lens component is the realization of miniature camera featuring auto-focus and optical image stabilization (OIS) without any mobile mechanical part. Experimental measurements of actual performances of liquid lens component will be presented : focus and tilt amplitude, residual optical wave front error and response time.

Paper Details

Date Published: 13 May 2010
PDF: 7 pages
Proc. SPIE 7716, Micro-Optics 2010, 77160I (13 May 2010); doi: 10.1117/12.859080
Show Author Affiliations
Eric Simon, Varioptic SA (France)
Pierre Craen, Varioptic SA (France)
Hilario Gaton, Varioptic SA (France)
Olivier Jacques-Sermet, Varioptic SA (France)
Frédéric Laune, Varioptic SA (France)
Julien Legrand, Varioptic SA (France)
Mathieu Maillard, Varioptic SA (France)
Nicolas Tallaron, Varioptic SA (France)
Nicolas Verplanck, Varioptic SA (France)
Bruno Berge, Varioptic SA (France)


Published in SPIE Proceedings Vol. 7716:
Micro-Optics 2010
Hugo Thienpont; Peter Van Daele; Jürgen Mohr; Hans Zappe, Editor(s)

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