3405269

Information

• Patent Grant
• 3405269

• References
• Source

• Patent Number

  3,405,269

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1968
  56 years ago

• CPC

  • G01J5/061 - using cooling or thermostating of parts of the apparatus
  • G01J5/08 - Optical features
  • G01J5/0834 - using shutters or modulators
  • G01J5/0859 - using a sighting arrangement, or a camera for the same purpose
  • G01J5/0862 - using optical filters
  • G01J5/0865 - using means for replacing an element by another
  • G01J5/0893 - Arrangements to attach devices to a pyrometer, i.e. attaching an optical interface; Spatial relative arrangement of optical elements
  • G01J5/62 - using means for chopping the light Compensation for background radiation of chopper element

• US Classifications

  • 250 - Radiant energy
  • 356 - Optics: measuring and testing
  • 374 - Thermal measuring and testing