ACOUSTO-OPTIC DEVICE, AND LIGHT MODULATOR, OPTICAL SCANNER AND DISPLAY APPARATUS USING THE ACOUSTO-OPTIC DEVICE

摘要

The present invention relates to an acousto-optic device, a light modulator, an optical scanner, and a display apparatus using the same. The acousto-optic device according to the embodiment of the present invention includes an elastic medium, a meta structure layer which includes a first layer which is formed on a first surface of the elastic medium and a second layer which is formed on the first layer and includes a preset repetitive pattern, and an acoustic wave generating unit which applies an acoustic wave to the elastic medium.