Varifocal optical device

Details Varifocal optical device Varifocal optical device

2008-02-25

2009-11-17

Thompson, Timothy J (Department: 2873)

Optical: systems and elements

Lens

With support

C359S813000

Reexamination Certificate

active

07619837

ABSTRACT:
A varifocal optical device is provided. The varifocal optical device includes an optical lens, an actuator unit connected with the optical lens and having two areas that are bending-deformed in opposite directions to each other when a voltage is applied thereto, and a supporting unit to support the actuator unit, so that a focus of the optical lens is varied by the bending deformation when the voltage is applied to the actuator unit. Thereby, a driving displacement of the varifocal optical lens can be maximized.

REFERENCES:
patent: 6624549 (2003-09-01), Takeuchi et al.
patent: 6703762 (2004-03-01), Okada
patent: 6801493 (2004-10-01), Jang et al.
patent: 6880936 (2005-04-01), Shin
patent: 6943966 (2005-09-01), Konno
patent: 7170665 (2007-01-01), Kaneko et al.
patent: 7202591 (2007-04-01), Arbogast et al.

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