ANALYSIS OF SPECTRA BY CORRELATION OF INTERFERENCE PATTERNS

• US 3,563,663 A
• Filed: 07/13/1967
• Issued: 02/16/1971
• Est. Priority Date: 07/13/1966
• Status: Expired due to Term

• Current Assignee: Barringer Anthony Rene
• Original Assignee: Barringer Anthony Rene
• Inventors: BARRINGER ANTHONY RENE
• Application Number:
  US04/653,228
• Time in Patent Office: 1,314 Days
• US Class Current: 356/451
• CPC Class Codes: G01J 3/02 Details
• CPC Class Codes: G01J 3/021 using plane or convex mirrors, parallel phase plates, or particular reflectors
• CPC Class Codes: G01J 3/0229 using masks, aperture plates, spatial light modulators or spatial filters, e.g. reflective filters
• CPC Class Codes: G01J 3/453 by correlation of the amplitudes

Abstract

A SCANNING INTERFEROMETER OF THE MICHELSON TYPE WHEREIN THE PATH LENGTH DIFFERENCE OF THE TWO INTERFERING BEAMS IN THE INTERFEROMETER IS CONTINUOUSLY VARIED IN A PREDETERMINED MANNER, AND A ROTATABLE MIRROR IS PROVIDED FOR SCANNING OR DISPERSING THE EMERGENT, INTENSITY MODULATED LIGHT SYNCHRONOUSLY WITH THE VARYING PATH LENGTH DIFFERENCE ACROSS A MASK CONTAINING A SERIES OF LINES CORRESPONDING TO A PATTERN PRODUCED BY INTENSITY MODULATED LIGHT OF KNOWN SPECTRAL CONTENT.

Claims