3281604

Information

• Patent Grant
• 3281604

• References
• Source

• Patent Number

  3,281,604

• Date Filed

  Not available

• Date Issued

  Tuesday, October 25, 1966
  58 years ago

• CPC

  • G02B27/281 - used for attenuating light intensity
  • G01J1/24 - using electric radiation detectors
  • Y10S65/01 - Lens envelope

• US Classifications

  • 250 - Radiant energy
  • 065 - Glass manufacturing
  • 359 - Optical: systems and elements