Resin precursor composition for optical materials, optical element obtained from the composition, and diffractive optical element configured using the optical element

Abstract

Low refractive index and high dispersion material which can produce a bonded-multilayer DOE having an excellent optical performance is obtained, and the optical member using this is obtained. The resin precursor for optical materials obtained through the addition reaction of the composite containing a di (meth) acrylate shown in the following Chemical Expression 1. where, R═H or CH 3 , and m+n=1 to 10.

1 . A resin precursor composite for optical material comprising the following a bisphenol AF ethyleneoxide modified di (meth) acrylate: 
       
         
           
           
               
               
           
         
         where, R═H or CH 3 , and m+n=1 to 10. 
       
     
     
         2 . The resin precursor composite for optical material according to  claim 1 , wherein m=1, and n=1. 
     
     
         3 . The resin precursor composite for optical material according to  claim 1 , further comprising 0.05 to 3 wt % of a polymerization initiator against the bisphenol AF ethyleneoxide modified di (meth) acrylate. 
     
     
         4 . The resin precursor composite for optical material according to  claim 1 , further comprising 0.07 to 0.7 wt % of a polymerization initiator against the bisphenol AF ethyleneoxide modified di (meth) acrylate. 
     
     
         5 . An optical member obtained by curing the resin precursor composite according to  claim 1 . 
     
     
         6 . A diffractive optical element, wherein the optical member according to  claim 5  is laminated with an optical member having higher refractive index and lower dispersion than the optical member with a diffraction grating formed at a boundary surface. 
     
     
         7 . The diffractive optical element according to  claim 6 , wherein the optical member having higher refractive index and lower dispersion is obtained by curing a composite containing the following thiol and a di (meth) acrylate: 
       
         
           
           
               
               
           
         
         where, m+n=1 to 6. 
       
     
     
         8 . The diffractive optical element according to  claim 7 , wherein the di (meth) acrylate is: 
       
         
           
           
               
               
           
         
         where, R═H or CH 3 , and m+n=1 to 10. 
       
     
     
         9 . An optical member obtained by curing the resin precursor composite according to  claim 2 . 
     
     
         10 . An optical member obtained by curing the resin precursor composite according to  claim 3 . 
     
     
         11 . An optical member obtained by curing the resin precursor composite according to  claim 4 .