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  2. Pellicle mirror - Wikipedia

    en.wikipedia.org/wiki/Pellicle_mirror

    Splitting the beam allows its use for multiple purposes simultaneously. The thinness of the mirror practically eliminates beam or image doubling due to a non-coincident weak second reflection from the nominally non-reflecting surface, a problem with mirror-type beam splitters. [1] The name pellicle is a diminutive of pellis, a skin or film.

  3. Beam splitter - Wikipedia

    en.wikipedia.org/wiki/Beam_splitter

    A diffractive beam splitter can generate either a 1-dimensional beam array (1xN) or a 2-dimensional beam matrix (MxN), depending on the diffractive pattern on the element. The diffractive beam splitter is used with monochromatic light such as a laser beam, and is designed for a specific wavelength and angle of separation between output beams.

  4. Mirror support cell - Wikipedia

    en.wikipedia.org/wiki/Mirror_support_cell

    This is a multiple beam and truss system which in turn supports a temperature maintenance and air flow system, six position actuators and the 160 pneumatic actuators which work its active optics system. This results in a huge assembly structure weighing about 28 tons without its mirrors.

  5. Reflector sight - Wikipedia

    en.wikipedia.org/wiki/Reflector_sight

    The reticle image in this sight is produced by an optical collimator bounced off a beam splitter. The dot remains on the target even though the viewer's head is moved side to side A reflector sight or reflex sight is an optical sight that allows the user to look through a partially reflecting glass element and see an illuminated projection of ...

  6. Diffractive beam splitter - Wikipedia

    en.wikipedia.org/wiki/Diffractive_beam_splitter

    A diffractive beam splitter can generate either a 1-dimensional beam array (1xN) or a 2-dimensional beam matrix (MxN), depending on the diffractive pattern on the element. The diffractive beam splitter is used with monochromatic light such as a laser beam, and is designed for a specific wavelength and angle of separation between output beams.

  7. Dichroism - Wikipedia

    en.wikipedia.org/wiki/Dichroism

    The original meaning of dichroic, from the Greek dikhroos, two-coloured, refers to any optical device which can split a beam of light into two beams with differing wavelengths. Such devices include mirrors and filters , usually treated with optical coatings , which are designed to reflect light over a certain range of wavelengths and transmit ...

  8. Michelson interferometer - Wikipedia

    en.wikipedia.org/wiki/Michelson_interferometer

    As shown in Fig. 3a and 3b, the observer has a direct view of mirror M 1 seen through the beam splitter, and sees a reflected image M' 2 of mirror M 2. The fringes can be interpreted as the result of interference between light coming from the two virtual images S' 1 and S' 2 of the original source S .

  9. Fiber-optic splitter - Wikipedia

    en.wikipedia.org/wiki/Fiber-optic_splitter

    The FBT splitter is one of the most common. FBT splitters are widely accepted and used in passive networks, especially for instances where the split configuration is smaller (1×2, 1×4, 2×2, etc.). [1] The PLC is a more recent technology. PLC splitters offer a better solution for larger applications.

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