3424863

Information

• Patent Grant
• 3424863

• References
• Source

• Patent Number

  3,424,863

• Date Filed

  Not available

• Date Issued

  Tuesday, January 28, 1969
  55 years ago

• CPC

  • G02F1/17 - based on variable absorption elements
  • H01J29/12 - acting as light valves by shutter operation

• US Classifications

  • 348 - Television
  • 313 - Electric lamp and discharge devices
  • 359 - Optical: systems and elements