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  2. Unpolarized light - Wikipedia

    en.wikipedia.org/wiki/Unpolarized_light

    Conversely, a polarizer acts on an unpolarized beam or arbitrarily polarized beam to create one which is polarized. Unpolarized light can be described as a mixture of two independent oppositely polarized streams, each with half the intensity. Light is said to be partially polarized when there is more power in one of these streams than the other ...

  3. They Live - Wikipedia

    en.wikipedia.org/wiki/They_Live

    The sunglasses function like a critique of ideology. They allow you to see the real message beneath all the propaganda, glitz, posters and so on. … When you put the sunglasses on, you see the dictatorship in democracy, the invisible order which sustains your apparent freedom. [26]

  4. Glasses - Wikipedia

    en.wikipedia.org/wiki/Glasses

    Typical sunglasses lenses are tinted for protection against bright light or polarized to remove glare; photochromic glasses are clear or lightly tinted in dark or indoor conditions, but turn into sunglasses when they come into contact with ultraviolet light. Most over-the-counter sunglasses do not have corrective power in the lenses; however ...

  5. Polaroid Corporation - Wikipedia

    en.wikipedia.org/wiki/Polaroid_Corporation

    Polaroid Corporation was an American company best known for its instant film and cameras, which now survives as a brand for consumer electronics. The company was founded in 1937 by Edwin H. Land, to exploit the use of his Polaroid polarizing polymer. [1]

  6. Anaglyph 3D - Wikipedia

    en.wikipedia.org/wiki/Anaglyph_3D

    This technology eliminates the expensive silver screens required for polarized systems such as RealD, which is the most common 3D display system in theaters. It does, however, require much more expensive glasses than the polarized systems. Dolby 3D uses this principle. The filters divide the visible color spectrum into six narrow bands – two ...

  7. Polarizing filter (photography) - Wikipedia

    en.wikipedia.org/wiki/Polarizing_filter...

    Circular polarizer/linear analyzer [1] filtering unpolarized light and then circularly polarizing the result. A polarizing filter or polarising filter (see spelling differences) is a filter that is often placed in front of a camera lens in photography in order to darken skies, manage reflections, or suppress glare from the surface of lakes or the sea.

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