3815977

Information

• Patent Grant
• 3815977

• References
• Source

• Patent Number

  3,815,977

• Date Filed

  Not available

• Date Issued

  Tuesday, June 11, 1974
  50 years ago

• CPC

  • H01J40/02 - Details
  • G01J1/04 - Optical or mechnical part supplementary adjustable parts
  • G01J1/0407 - Optical elements not provided otherwise
  • G02B5/04 - Prisms
  • G02B17/04 - using prisms only
  • G02B19/0019 - having reflective surfaces only (
  • G02B19/0076 - for use with a detector
  • H01L31/0232 - Optical elements or arrangements associated with the device
  • G01J1/0209 - Monolithic

• US Classifications

  • 359 - Optical: systems and elements
  • 257 - Active solid-state devices
  • 356 - Optics: measuring and testing