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Optical glass refers to a quality of glass suitable for the manufacture of optical systems such as optical lenses, prisms or mirrors.Unlike window glass or crystal, whose formula is adapted to the desired aesthetic effect, optical glass contains additives designed to modify certain optical or mechanical properties of the glass: refractive index, dispersion, transmittance, thermal expansion and ...
CEO Wendell Weeks talks about Corning Inc.’s innovations—ranging from Edison’s lightbulb to the face of your smartphone—and how its fiber-optic cables are powering the AI revolution.
This list covers optical lens designs grouped by tasks or overall type. The field of optical lens designing has many variables including the function the lens or group of lenses have to perform, the limits of optical glass because of the index of refraction and dispersion properties, and design constraints including realistic lens element center and edge thicknesses, minimum and maximum air ...
The new Jena optical glass also opened up the possibility of increased performance of photographic lenses. The first use of Jena glass in a photographic lens was by Voigtländer, but as the lens was an old design its performance was not greatly improved.
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n November 1954, 29-year-old Sammy Davis Jr. was driving to Hollywood when a car crash left his eye mangled beyond repair. Doubting his potential as a one-eyed entertainer, the burgeoning performer sought a solution at the same venerable institution where other misfortunate starlets had gone to fill their vacant sockets: Mager & Gougelman, a family-owned business in New York City that has ...
Hakim Optical in Richmond Hill. Karim Hakimi, a native of Iran, learned to make lenses from old window glass as a child. After a stint in the navy, Hakimi worked in the optical industry in Switzerland. [1] He then migrated to Canada and opened an optical laboratory in the former Elmwood Hotel (now the Elmwood Spa) in downtown Toronto, Ontario. [2]
Optical toys form a group of devices with some entertainment value combined with a scientific, optical nature. Many of these were also known as " philosophical toys " when they were developed in the 19th century.