| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 739951 | Sensors and Actuators A: Physical | 2011 | 8 Pages |
Abstract
A simple and novel hermetic sealing method for an electrowetting-based tunable lens is presented in this paper. The proposed method utilizes the Laplace pressure disparity (LPD) induced by heterogeneous surface energy intentionally prepared on a lens-cover glass. An amorphous fluoropolymer is a suitable material for inducing a large LPD because of its extremely low surface energy. The liquid lens sealed by the proposed method shows outstanding hermeticity as well as long-term stability against the generation and growth of bubble. Moreover, it provides high bond strength by preventing the adhesive used for bonding from coexisting with the lens liquid.
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Authors
June Kyoo Lee, Hak-Rin Kim, Seong Ho Kong,