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Additional
polarizer
English Wikipedia - The Free Encyclopedia
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Polarizer
A
polarizer
or
polariser
is an
optical filter
that passes light of a specific
polarization
and blocks waves of other polarizations. It can convert a beam of light of undefined or mixed polarization into a beam with well-defined polarization,
polarized light
. The common types of polarizers are
linear polarizers
and
circular polarizers
. Polarizers are used in many
optical
techniques and
instruments
, and
polarizing filters
find applications in
photography
and
liquid crystal display
technology. Polarizers can also be made for other types of
electromagnetic waves
besides light, such as
radio waves
,
microwaves
, and
X-rays
.
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