6D40.27 - Lloyd's Mirror - Optical Version

See paragraph one in the procedure section.
Code Number:
Demo Title:
Lloyd's Mirror - Optical Version
Area of Study:
Laser with diffusing lens, front surface mirror, screen.

Put the diffusing lens on the laser and point toward the screen.  Bring the front surface mirror in at a 90 degree angle to the beam and adjust to a very small grazing angle.  When the proper adjustments are made a number of interference lines should be seen on the screen. 

NOTE:  The farther away the screen is from the mirror the easier the lines are to see.

  • O-410:  "Fresnel Biprism-Lloyd's Mirror",  DICK and RAE Physics Demo Notebook.
  • Wallace A. Hilton, "I-2 Lloyd's Mirror", Experiments in Optical Physics, p. 20.
  • Gordon McComb,  "Build a Michelson Interferometer",  Lasers, Ray Guns, & Light Cannons - Projects from the Wizard's Workbench, p. 153.
  • C. Harvey Palmer, "Experiment B3: Demonstration of Lloyd's Mirror Fringes and Their Achromatization",  Optics - Experiments and Demonstrations, John Hopkins Press, 1962.
  • "24, Lloyd's Experiment on Interference", Experiments in Optics, Part 1, J. Klinger Scientific Apparatus Corp., Bulletin 101.
  • W. Bolton, "Lloyd's Mirror With Water Waves", Book 2 - Waves and Particles, Physics Experiments and Projects, 1968, p. 70-71.

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