OPTICAL ELEMENT AND DISPLAY DEVICE USING SAME

摘要

PROBLEM TO BE SOLVED: To provide an optical element which is thin in thickness, has a high refractive index and is useful for a camera lens, a shutter or the like. SOLUTION: In the optical element having a transparent magnetic body whose surface has at least a concave or convex shape, a mechanism magnetizing the transparent magnetic body and a polarizer which are provided in this order along an optical path, the transparent magnetic body preferably includes a titania nano-sheet represented by chemical formula:Ti2-XMXO4(wherein M denotes at least one transition metal selected from V, Cr, Mn, Fe, Co, Ni and Cu and x satisfies 0