Polarizing Filters

When two Polarizing Filters are placed atop one another, they can be transparent or opaque to light. By rotating one of the filters, the transmitted light passing through the filters may be turned "on" or "off". When the filters do not transmit light, the polarizing filters are said to be "crossed polarizers". Certain materials such as cellophane tape, mica, Plexiglas, corn syrup, and stretched polyethylene exhibit beautiful colors when placed between two crossed polarizing filters.
  • list off, grid on  list on or off
  • Mica Demo Kit

    Mica Demo Kit

    Review star icon Review star icon Review star icon Review star icon Review star icon (1 review)
    When one polarizing filter is rotated, the colors change!
    $8.75
  • Mica

    Mica

    Review star icon Review star icon Review star icon Review star icon Review star icon (3 reviews)
    When placed between two crossed polarizing filters, beautiful colors can be observed.
    $10.95
  • Polarizing Cellophane Tape

    Polarizing Cellophane Tape

    Review star icon Review star icon Review star icon Review star icon Review star icon (3 reviews)
    This tape exhibits brilliant colors when placed between two polarizing filters.
    $1.95–$8.75
  • Polarizing Filter Demo Kit

    Polarizing Filter Demo Kit

    Conduct experiments and demonstrations using polarized light.
    $5.95–$15.95
  • Polarizing Filters

    Polarizing Filters

    Review star icon Review star icon Review star icon Review star icon Review star icon (10 reviews)
    These high quality plastic polarizing filters are perfect for all kinds of experimentation.
    $3.75–$129.95
  • Calcite Crystal - Iceland Spar

    Calcite Crystal - Iceland Spar

    Review star icon Review star icon Review star icon Review star icon Review star icon (1 review)
    If you look at the words on a printed page through this crystal, you see double.
    $6.95