Polarizing Filters for Teachers

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.
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  • Mica Demo Kit

    Mica Demo Kit
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    When one polarizing filter is rotated, the colors change!
    $8.75
  • Polarizing Cellophane Tape

    Polarizing Cellophane Tape
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    This tape exhibits brilliant colors when placed between two polarizing filters.
    $1.95–$8.75
  • Polarizing Filters

    Polarizing Filters
    Review star icon Review star icon Review star icon Review star icon Review star icon (14 reviews)
    These high quality plastic polarizing filters are perfect for all kinds of experimentation.
    $3.75–$129.95
  • Polarizing Filter Demo Kit

    Polarizing Filter Demo Kit
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    Conduct experiments and demonstrations using polarized light.
    $5.95–$15.95