text: C O R N I N G T E C H N O L O G I E S 
  
  Environmental Technologies is another growth business for us, 
  and one in which we are focusing a significant portion of our 
  overall R&D investment. We have helped shape this industry since 
  our invention of the ceramic catalytic converter substrate in the 
  1970s. Today, we are working globally with the automotive 
  and truck industries to develop and manufacture innovative new 
  substrate and filter products to further reduce emissions from 
  both gasoline- and diesel-powered vehicles. By around 2008, the 
  diesel emission control business could be as big as our automotive 
  emission control business is today. Our new clean-air products plant 
  in Erwin, N.Y., is expected to be up and running by mid-decade 
  in support of this great diesel opportunity. 
  
  Our Semiconductor Optics business — with some exciting new 
  developments in the production of calcium fluoride crystals 
  and continued breakthroughs in the creation of HPFS® fused silica 
  — is helping the semiconductor industry develop faster and 
  more powerful integrated circuits. Our long-standing leadership 
  in optical materials composition and optics design continues to be 
  based on our unique set of skills in basic materials science, glass 
  chemistry and metrology. 