A BEAM CONVERSION APPARATUS

摘要

A beam conversion device is provided to maximize collection efficiency and illuminance uniformity by converting an irradiated two-dimensional beam as the one-dimension beam. In a beam conversion device, a first lens(110) refracts an inputted two-dimensional beam so that the length of the first axis direction of inputted two dimension beam is expanded. A beam converting lens(130) condenses the two-dimensional beam to one-dimensional beam far from the predetermined intervals in the second axis direction so that the length of the first axis direction is expanded and crossed with the second axis direction. A second lens(120) is at the front side or the backplane of above beam converting lens and controls the divergence angle to which the length of the first axis direction is expanded.