Patent ID: 9030643
Filing Date: 2015-05-12
Classification: G02B,G02F

Abstract:
1. A liquid crystal optical element comprising: a first prism array; a second prism array arranged so as to face the first prism array; and a liquid crystal layer provided between the first and second prism arrays, wherein the first prism array is composed of a plurality of first prisms that have ridge lines extending in a first direction and are arranged so as to be spaced apart from each other at predetermined intervals in a second direction perpendicular to the first direction, the second prism array is composed of a plurality of second prisms that have ridge lines extending in the first direction and are arranged so as to be spaced apart from each other at predetermined intervals in the second direction, each of the first prisms has a first inclined outer surface facing a center plane that is perpendicular to the second direction and passes through a center line of the liquid crystal optical element, and each of the second prisms has a second inclined outer surface facing the center plane.