| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical element capable of being manufactured at the manufacturing cost lower than before and a method therefor. <P>SOLUTION: The method for manufacturing the optical element being a multilayer grating 11 having a phase plate includes: a layering step of layering a grating 20, the phase plate 30 and a ply metal 40; an integration step of integrating the layered grating 20, phase plate 30 and ply metal 40 to obtain an integrated material 10; and a separation step of cutting/separating the integrated material 10 into a plurality of the multilayer gratings 11 each having the phase plate. <P>COPYRIGHT: (C)2008,JPO&INPIT |
