| 摘要 |
PROBLEM TO BE SOLVED: To obtain a variable focus lens capable of preventing performance degradation due to air bubbles by forming a protrusion at one end of a chamber. SOLUTION: The variable focus lens includes: a fluid chamber having a protrusion formed at one opened end thereof as a cylindrically shaped body to house first and second non-miscible fluids which have different refractive indices respectively; a transparent plate hermetically coupled with one end of the chamber with a predetermined gap from the protrusion of the chamber; and first electrode disposed inside the chamber to act on the first fluid and a second electrode insulated from the first fluid. COPYRIGHT: (C)2007,JPO&INPIT
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