Light Interference Plates IP-5N


【Product Description】

This product (Light Interference Plates IP-5N) includes optical flat glass plates specially designed for observing and counting a pattern of interference fringes visible as light and dark bands.

【Overall Advantages to Users】

Each of the glass plates has the flatness high enough to form a series of alternating/contrasting interference fringes visible as dark and light bands with equal spacing.

Another advantage of the glass plate is its sufficient size (50 x 200 mm) that helps a user easily calculate the thickness of a thin material such as a cellophane film or a human hair based on the number of fringes counted and a known frequency of a monochromatic light source (like a sodium lamp).


  • Interference fringe
  • Interference of light
  • Reflection and Refraction
  • Light wavelength
  • Monochromatic light source





【To all users】

  • The high optical flatness on the plates can provide a higher contrast of shades between dark and bright bands so that you observe the clear interference fringes with a pattern of evenly spaced alternating bright and dark bands.
  • The high contrast interference fringes on enough length of the plates enable you to calculate the thickness of a thin material such as a cellophane film or a hair based on the number of lines counted and frequency of a monochromatic source (like a Sodium lamp).
  • Optical flatness glass plate: 2 pcs, 50 x 200 x 6 mm
  • Rubber band: 2 pcs
  • Thin paper: 2 pieces
  • Plastic film: 2 pieces
  • Accessory: a storage box

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