3864028

Information

• Patent Grant
• 3864028

• References
• Source

• Patent Number

  3,864,028

• Date Filed

  Not available

• Date Issued

  Tuesday, February 4, 1975
  51 years ago

• CPC

  • G02B9/20 - the rear component having the compound
  • G02B13/24 - for reproducing or copying at short object distances
  • G02B13/001 - Miniaturised objectives for electronic devices
  • G02B13/02 - Telephoto objectives

• US Classifications

  • 359 - Optical: systems and elements