Lighting device

Abstract

To further utilize a liquid crystal lens array.SOLUTION: A lighting device comprises: a liquid crystal layer which is formed between a first substrate and a second substrate; a pattern electrode layer which is disposed between the first substrate and the liquid crystal layer and is formed by arranging a plurality of electrodes in a predetermined pattern; a ground electrode layer which is disposed between the second substrate and the liquid crystal layer; a controller which controls voltage applied to the pattern electrode layer; a liquid crystal lens array in which each electrode of the pattern electrode layer forms each liquid crystal lens and which is formed by an aggregate of a plurality of liquid crystal lenses; and a light source which irradiates the liquid crystal lens array with light and causes light to be transmitted through the liquid crystal lens array. The controller controls voltage to each electrode to control a transmission state of light through the liquid crystal lens array, and the liquid crystal lens array is disposed so as to radiate light transmitted through the liquid crystal lens array as illumination light onto a predetermined object.SELECTED DRAWING: Figure 1

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