Patent ID: 9594288
Date: 2017-03-14
CPC Classifications: G02B,G02F

Claim:
1. A tunable acoustic gradient index of refraction lens, comprising: a sealed enclosure comprising a casing, a first window disposed on a first side of the casing and sealed to the casing and a second window disposed on a second side of the casing opposite the first side and sealed to the casing, the first and second windows arranged to pass a light beam therethrough; a refractive liquid disposed in the sealed enclosure that selectively changes its refractive index responsively to electrically controlled vibrational energy applied thereto; and at least one vibrating element enclosed in the sealed enclosure in vibrational communication with the refractive liquid that delivers controlled vibrational energy to the refractive liquid to selectively alter the refractive index of the refractive liquid responsively to an electrical signal applied to the vibrating element.