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  2. Haidinger's brush - Wikipedia

    en.wikipedia.org/wiki/Haidinger's_brush

    Orientation varies with that of polarization of light source. Haidinger's brush, more commonly known as Haidinger's brushes is an image produced by the eye, an entoptic phenomenon, first described by Austrian physicist Wilhelm Karl von Haidinger in 1844. Haidinger saw it when he looked through various minerals that polarized light. [1][2]

  3. Bagolini Striated Glasses Test - Wikipedia

    en.wikipedia.org/wiki/Bagolini_Striated_Glasses_Test

    Bagolini Striated Glasses Test. Purpose. extent of binocular functions. Bagolini striated glasses test, or BSGT, is a subjective clinical test to detect the presence or extent of binocular functions and is generally performed by an optometrist or orthoptist or ophthalmologist (medical/surgical eye doctor). It is mainly used in strabismus clinics.

  4. Polarized 3D system - Wikipedia

    en.wikipedia.org/wiki/Polarized_3D_system

    Polarized 3D system. Circularly polarized 3D glasses in front of an LCD (Liquid Crystal Display) tablet with a quarter-wave retarder on top of it; the λ/4 plate at 45° produces a definite handedness, which is transmitted by the left filter but blocked by the right filter. A polarized 3D system uses polarization glasses to create the illusion ...

  5. Polarized light microscopy - Wikipedia

    en.wikipedia.org/wiki/Polarized_light_microscopy

    Polarized light microscopy can mean any of a number of optical microscopy techniques involving polarized light. Simple techniques include illumination of the sample with polarized light. Directly transmitted light can, optionally, be blocked with a polariser oriented at 90 degrees to the illumination. More complex microscopy techniques which ...

  6. Polarizer - Wikipedia

    en.wikipedia.org/wiki/Polarizer

    A polarizer or polariser is an optical filter that lets light waves of a specific polarization pass through while blocking light waves of other polarizations. [1][2][3][4] It can filter a beam of light of undefined or mixed polarization into a beam of well-defined polarization, known as polarized light.

  7. Optical rotation - Wikipedia

    en.wikipedia.org/wiki/Optical_rotation

    Optical rotation, also known as polarization rotation or circular birefringence, is the rotation of the orientation of the plane of polarization about the optical axis of linearly polarized light as it travels through certain materials. Circular birefringence and circular dichroism are the manifestations of optical activity.

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