Optical recording medium and method for producing the same

Abstract

A method for producing an optical recording medium of the present invention includes: a first step of laminating a substrate and a transfer stamper with a not cured ultraviolet-curable resin interposed therebetween, the transfer stamper having, on at least one of surfaces thereof, recesses/projections that provide information to be transferred; a second step of transferring the information to be transferred of the transfer stamper onto a surface of the ultraviolet-curable resin; a third step of detaching the transfer stamper from the ultraviolet-curable resin at an interface therebetween after the ultraviolet-curable resin is cured; and a fourth step of forming a thin film layer on the information-transferred surface of the ultraviolet-curable resin, the thin film layer including at least one of a recording film and a reflection film. In this method, at least one of a weight of the transfer stamper and a viscosity of the ultraviolet-curable resin is set so that a surface roughness of the information-transferred surface of the ultraviolet-curable resin is smaller than a surface roughness of the surface of the transfer stamper on which the information to be transferred is provided.

1 - 15 . (canceled)  
   
   
       16 . An optical recording medium produced by the method for producing an optical recording medium comprising: 
 a first step of laminating a substrate and a transfer stamper with a not cured ultraviolet-curable resin interposed therebetween, the transfer stamper having, on at least one of surfaces thereof recesses/projections that provide information to be transferred;    a second step of transferring the information to be transferred of the transfer stamper onto a surface of the ultraviolet-curable resin;    a third step of detaching the transfer stamper from the ultraviolet-curable resin at an interface therebetween after the ultraviolet-curable resin is cured, and    a fourth step of forming a thin film layer on the information-transferred surface of the ultraviolet-curable resin the thin film layer including at least one of a recording film and a reflection film,    wherein at least one of a weight of the transfer stamper and a viscosity of the ultraviolet-curable resin is set so that a surface roughness of the information-transferred surface of the ultraviolet-curable resin is smaller than a surface roughness of the surface of the transfer stamper on which the information to be transferred is provided.