Patent ID: 6898011
Filing Date: 2005-05-24
Classification: B82Y,G02B,G21K

Abstract:
1. A method for manufacturing a multi-layered film reflective mirror, comprising: depositing, on an obverse surface of a substrate, a multi-layered film comprising superposed layers of at least two types of substances having mutually different respective refractive indices, the layers being superimposed in an alternating manner with a constant period length to form a reflective surface of the mirror; in a region of the reflective surface requiring phase correction of a wavefront of light reflected from the multi-layered film, locally scraping the multi-layered film in the region to correct the phase; and on a reverse surface of the substrate, depositing a film of a substance that imparts a deformation to the substrate serving to cancel at least a portion of substrate deformation caused by the scraping of the multi-layered film.