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Photodefinition of optical devices

  • US 20010031122A1
  • Filed: 12/01/2000
  • Published: 10/18/2001
  • Est. Priority Date: 12/02/1999
  • Status: Active Grant
First Claim
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1. A radiation-definable material comprising a first layer, a second layer above said first layer, and a third layer above said second layer, wherein said first, second and third layers each comprise polymers containing unactivated first photosensitive molecules which activate polymerization in response to incident optical energy of a first wavelength, and wherein said polymer in said second layer further contains a greater concentration by volume of unactivated second photosensitive molecules than does said first and third layers, said second photosensitive molecules activating polymerization in response to incident optical energy of a second wavelength, said first photosensitive molecules being less susceptible to activating polymerization in response to incident optical energy of said second wavelength than are said second photosensitive molecules, and said second photosensitive molecules being less susceptible to activating polymerization in response to incident optical energy of said first wavelength than are said first photosensitive molecules.

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