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2. Aviator sunglasses - Wikipedia

   en.wikipedia.org/wiki/Aviator_sunglasses

   F.W. Hunter, Army test pilot, with AN 6531 sunglasses (1942) Aviator sunglasses are a style of sunglasses that was developed by a group of American firms. The original Bausch & Lomb design is now commercially marketed as Ray-Ban Aviators, although other manufacturers also produce aviator-style sunglasses.

3. Ray-Ban - Wikipedia

   en.wikipedia.org/wiki/Ray-Ban

   Ray-Ban is a brand of luxury sunglasses and eyeglasses created in 1936 by Bausch & Lomb. The brand is best known for its Wayfarer and Aviator lines of sunglasses. In 1999, Bausch & Lomb sold the brand to Italian eyewear conglomerate Luxottica Group for a reported $640 million.

4. Sunglasses - Wikipedia

   en.wikipedia.org/wiki/Sunglasses

   The Ray-Ban Wayfarer is a (mostly) plastic-framed design for sunglasses produced by the Ray-Ban company. Introduced in 1952, the trapezoidal lenses are wider at the top than the bottom (inspired by the Browline eyeglasses popular at the time), and were famously worn by James Dean , Roy Orbison , Elvis Presley , Bob Marley , The Beatles and ...

5. Birefringence - Wikipedia

   en.wikipedia.org/wiki/Birefringence

   Comparison of positive and negative birefringence : In positive birefringence (figure 1), the ordinary ray (p-polarisation in this case w.r.t. magenta-coloured plane of incidence), perpendicular to optic axis A is the fast ray (F) while the extraordinary ray (s-polarisation in this case and parallel to optic axis A) is the slow ray (S).

6. Radial polarization - Wikipedia

   en.wikipedia.org/wiki/Radial_polarization

   A radially polarized beam can be used to produce a smaller focused spot than a more conventional linearly or circularly polarized beam, [8] and has uses in optical trapping. [ 9 ] It has been shown that a radially polarized beam can be used to increase the information capacity of free space optical communication via mode division multiplexing ...

7. Bluespotted stingray - Wikipedia

   en.wikipedia.org/wiki/Bluespotted_stingray

   Bluespotted stingray or blue-spotted stingray may refer to several species: Neotrygon australiae , Australian bluespotted maskray Neotrygon bobwardi , Bob Ward's maskray