3649101

Information

• Patent Grant
• 3649101

• References
• Source

• Patent Number

  3,649,101

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1972
  52 years ago

• CPC

  • G03B7/006 - setting of both diaphragm and distance
  • G02B15/14 - by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
  • G03B19/18 - Motion-picture cameras

• US Classifications

  • 359 - Optical: systems and elements