3890627

Information

• Patent Grant
• 3890627

• References
• Source

• Patent Number

  3,890,627

• Date Filed

  Not available

• Date Issued

  Tuesday, June 17, 1975
  49 years ago

• CPC

  • G03B19/12 - Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror
  • G03B7/0807 - Control circuits
  • G03B7/09976 - the sensor being mounted in, before, or behind the porro-prism
  • G03B7/09978 - Protection against viewer backlight or integration of the viewer light into the measured light

• US Classifications

  • 396 - Photography