3640604

Information

• Patent Grant
• 3640604

• References
• Source

• Patent Number

  3,640,604

• Date Filed

  Not available

• Date Issued

  Tuesday, February 8, 1972
  53 years ago

• CPC

  • G03H1/0005 - Adaptation of holography to specific applications
  • G02B27/46 - Systems using spatial filters
  • G03H1/02 - Details of features involved during the holographic process; Replication of holograms without interference recording
  • G03H1/16 - using Fourier transform
  • G03H2001/0066 - for wavefront matching wherein the hologram is arranged to convert a predetermined wavefront into a comprehensive wave
  • G03H2260/36 - Dynamic material where the lifetime of the recorded pattern is quasi instantaneous, the holobject is simultaneously reconstructed
  • G03H2260/52 - Photochromic reactivity wherein light induces a reversible transformation between two states having different absorption spectra

• US Classifications

  • 359 - Optical: systems and elements