3498694

Information

• Patent Grant
• 3498694

• References
• Source

• Patent Number

  3,498,694

• Date Filed

  Not available

• Date Issued

  Tuesday, March 3, 1970
  54 years ago

• CPC

  • G02B5/285 - comprising deposited thin solid films
  • G02F1/21 - by interference
  • H01J29/12 - acting as light valves by shutter operation
  • H04N5/7425 - the modulator being a dielectric deformable layer controlled by an electron beam

• US Classifications

  • 359 - Optical: systems and elements
  • 348 - Television
  • 356 - Optics: measuring and testing