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2. Ray-Ban - Wikipedia

   en.wikipedia.org/wiki/Ray-Ban

   Website. ray-ban .com. 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. [1] [2]

3. 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 ...

4. History of optics - Wikipedia

   en.wikipedia.org/wiki/History_of_optics

   History of optics. Modern ophthalmic lens making machine. Optics began with the development of lenses by the ancient Egyptians and Mesopotamians, followed by theories on light and vision developed by ancient Greek philosophers, and the development of geometrical optics in the Greco-Roman world. The word optics is derived from the Greek term ...

5. Circle of confusion - Wikipedia

   en.wikipedia.org/wiki/Circle_of_confusion

   Circle of confusion. In optics, a circle of confusion (CoC) is an optical spot caused by a cone of light rays from a lens not coming to a perfect focus when imaging a point source. It is also known as disk of confusion, circle of indistinctness, blur circle, or blur spot . In photography, the circle of confusion is used to determine the depth ...

6. Amazon Prime Day 2018: Ray-Ban Sunglasses - AOL

   www.aol.com/article-slideshow-899865.html

   Amazon Prime Day 2018: Ray-Ban Sunglasses. Amazon Prime Day 2018: Ray-Ban Sunglasses. Marah Alindogan. July 16, 2018 at 3:53 PM.

7. Snell's law - Wikipedia

   en.wikipedia.org/wiki/Snell's_law

   Snell's law. Refraction of light at the interface between two media of different refractive indices, with n 2 > n 1. Since the velocity is lower in the second medium (v 2 < v 1 ), the angle of refraction θ 2 is less than the angle of incidence θ 1; that is, the ray in the higher-index medium is closer to the normal.