(under the class definition) Process wherein etching is used in forming or treating of an article which is either responsive to light, e.g., visible, UV, etc. or which is intended to transmit, modify, or otherwise alter light, e.g., visible, UV, etc.
SEE OR SEARCH CLASS
65, Glass Manufacturing,
37+, for lens making.
264, Plastic and Nonmetallic Article Shaping or Treating: Processes,
1.1+, for optical article shaping or treating.
430, Radiation Imagery Chemistry: Process, Composition, or Product Thereof, 321, for optical device manufacturing using an imaging technique.
