Patent ID: 9291874
Filing Date: 2016-03-22
CPC Classification: G02B,G02F

Claim Text:
1. An optical deflection element, comprising: a substrate; an optical waveguide film made of an electro-optic medium, and constituting an optical waveguide formed on the substrate; a first electrode pair disposed on an incident side of the optical waveguide film at a position facing a film thickness direction of the optical waveguide film, and configured to deflect a light beam transmitting through the optical waveguide film in an in-plane direction of the optical waveguide film in accordance with a first applied voltage; and a second electrode pair disposed on an output side of the optical waveguide film at a position facing the film thickness direction of the optical waveguide film, and configured to deflect the light beam deflected in the in-plane direction of the optical waveguide film by the first electrode pair in the film thickness direction of the optical waveguide film in accordance with a second applied voltage, wherein the second electrode pair includes a first electrode and a second electrode, and the first electrode and the second electrode are formed to have lengths different from each other in a direction of travel of the light beam transmitting through the optical waveguide film.