3658403

Information

• Patent Grant
• 3658403

• References
• Source

• Patent Number

  3,658,403

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1972
  53 years ago

• CPC

  • G03H1/00 - Holographic processes or apparatus using light, infra-red or ultra-violet waves for obtaining holograms or for obtaining an image from them Details peculiar thereto
  • G02B5/32 - Birefringent or phase retarding elements
  • G06K9/74 - Arrangements for recognition using optical reference masks
  • G11C13/045 - using photochromic storage elements
  • G03H2223/19 - Micro-optic array
  • Y10S359/90 - Methods
  • Y10S430/146 - Laser beam

• US Classifications

  • 359 - Optical: systems and elements
  • 430 - Radiation imagery chemistry: process, composition, or product thereof