3205796

Information

• Patent Grant
• 3205796

• References
• Source

• Patent Number

  3,205,796

• Date Filed

  Not available

• Date Issued

  Tuesday, September 14, 1965
  59 years ago

• CPC

  • G01J1/04 - Optical or mechnical part supplementary adjustable parts
  • G01J1/0437 - using masks, aperture plates, spatial light modulators, spatial filters
  • G01J1/0448 - Adjustable
  • G01J1/06 - Restricting the angle of incident light
  • G01J1/28 - using variation of intensity or distance of source
  • G01J1/4214 - specially adapted for view-taking apparatus

• US Classifications

  • 396 - Photography
  • 356 - Optics: measuring and testing