DIFFRACTION OPTICAL ELEMENT AND METHOD OF MANUFACTURING DIFFRACTION OPTICAL ELEMENT

摘要

A diffraction optical element disclosed in the present application comprises: a base body (102) formed from a first optical material including a first resin, further comprising a surface (102a) including a first region (105) whereon a diffraction grating (104) is disposed and a second region (106) which is located external to the first region; an optical adjustment layer (103) formed from a second optical material including a second resin, which is disposed upon the base body covering at least a portion of the second region (106) of the base body surface and the first region; and a binder interface part (109) including a binding material being binding for the second optical material, at least a portion of which is located below the optical adjustment layer (103) and is located at least inward from the surface in the base body surface second region (106).