3327600

Information

• Patent Grant
• 3327600

• References
• Source

• Patent Number

  3,327,600

• Date Filed

  Not available

• Date Issued

  Tuesday, June 27, 1967
  57 years ago

• CPC

  • G03B7/09978 - Protection against viewer backlight or integration of the viewer light into the measured light
  • G03B7/09976 - the sensor being mounted in, before, or behind the porro-prism

• US Classifications

  • 396 - Photography