OPTICAL ELEMENT, METHOD FOR MANUFACTURING OPTICAL ELEMENT, DUPLICATED PRODUCT OF OPTICAL ELEMENT AND METHOD FOR MANUFACTURING DUPLICATED PRODUCT OF OPTICAL ELEMENT

摘要

PROBLEM TO BE SOLVED: To provide an optical element in which an excellent refraction effect or diffraction effect can be obtained by recesses and projections formed on the surface and a method for manufacturing the element, and to provide an optical element in which a light beam in an optional profile can be obtained by the refraction effect or diffraction effect and a method for manufacturing the optical element.;SOLUTION: A rugged pattern 24 functioning as lenticular lenses is formed on the surface 10a of an azopolymer carrier 10, and fine recesses and projections are formed on the surface of the rugged pattern 24. When incident light 26 enters the optical element through the face where the rugged pattern 24 is formed, diffused light divided in three directions (+1st order light 34, -1st order light 36 and 0-order light 38) is formed.;COPYRIGHT: (C)2002,JPO