3621340

Information

• Patent Grant
• 3621340

• References
• Source

• Patent Number

  3,621,340

• Date Filed

  Not available

• Date Issued

  Tuesday, November 16, 1971
  53 years ago

• CPC

  • G02F2/02 - Frequency-changing of light
  • C09K11/777 - Oxyhalogenides
  • C09K11/7773 - with alkali or alkaline earth metal
  • F21K2/005 - excited by infra-red radiation using up-conversion

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 252 - Compositions
  • 307 - Electrical transmission or interconnection systems
  • 359 - Optical: systems and elements
  • 372 - Coherent light generators