Surface cleaning and modifying method and surface cleaning and modifying apparatus

Abstract

A self-cleaning step for cleaning an elastic abrasive body 231 itself by pressing the rotating elastic abrasive body 231 against a pressing member 221 to deform the elastic body 231 while supplying slurry L containing abrasive to the elastic abrasive body 231 so as to clean the elastic abrasive body 231 is added to a scrub cleaning step in which a plastic optical component 1 is rotated and the rotating elastic abrasive body 231 is pressed against a surface of the plastic optical component 1 while supplying slurry L containing abrasive between the surface of the plastic optical component 1 and the elastic abrasive body 231 so as to clean the plastic optical component 1.

1 . A surface cleaning and modifying method, comprising: 
 scrub cleaning a plastic optical component, including: 
 rotating the plastic optical component,  
 pressing a rotating elastic abrasive body against a surface of said plastic optical component, and  
 during the pressing, supplying a liquid between the surface of said plastic optical component and said elastic abrasive body, wherein the liquid is a slurry comprising dispersed abrasive; and  
   self-cleaning said elastic abrasive body, including: 
 deforming said elastic abrasive body, and  
 during the deforming, supplying a liquid, to said elastic abrasive body, the liquid being a slurry comprising dispersed abrasive.  
   
   
   
       2 . The surface cleaning and modifying method as set forth in  claim 1 , wherein said self-cleaning further comprises placing said elastic abrasive body and a pressing member in contact to deform said elastic abrasive body.  
   
   
       3 . The surface cleaning and modifying method as set forth in  claim 1 , further comprising alternately performing said scrub cleaning and said self-cleaning.  
   
   
       4 . A surface cleaning and modifying method, comprising: 
 scrub cleaning a plastic optical component, including: 
 rotating the plastic optical component,  
 pressing a rotating elastic abrasive body against a surface of said plastic optical component, the elastic abrasive body comprising dispersed abrasive, and  
 during the pressing, supplying a liquid comprising water between the surface of said plastic optical component and said elastic abrasive body; and  
   self-cleaning said elastic abrasive body, including: 
 deforming said elastic abrasive body, and  
 during the deforming, supplying a liquid comprising water to said elastic abrasive body.  
   
   
   
       5 . The surface cleaning and modifying method as set forth in  claim 4 , wherein said self-cleaning further comprises placing said elastic abrasive body and a pressing member in contact to deform said elastic abrasive body.  
   
   
       6 . The surface cleaning and modifying method as set forth in  claim 4 , further comprising alternately performing said scrub cleaning and said self-cleaning.  
   
   
       7 . A surface cleaning and modifying apparatus, comprising: 
 an optical component holder holding and rotating a plastic optical component;    a pressing member separate from said optical component holder;    an abrasive body holder holding and rotating an elastic abrasive body;    an operation section operating one or more of said optical component holder and said abrasive body holder so as to perform operations, including: 
 a cleaning action of pressing said elastic abrasive body against said plastic optical component, and  
 a self-cleaning action of placing said elastic abrasive body in contact with said pressing member; and  
   a liquid supply member for supplying liquid to said elastic abrasive body during said cleaning action and said self-cleaning action.    
   
   
       8 . The surface cleaning and modifying apparatus as set forth in  claim 7 , wherein said operation section alternately conducts said cleaning action and said self-cleaning action.  
   
   
       9 . The surface cleaning and modifying apparatus as set forth in  claim 7 , wherein said liquid is a slurry comprising dispersed abrasive.  
   
   
       10 . The surface cleaning and modifying apparatus as set forth in  claim 7 , wherein said elastic abrasive body comprises dispersed abrasive.  
   
   
       11 . The surface cleaning and modifying apparatus as set forth in  claim 10 , wherein said liquid comprises water.