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  2. Optical manufacturing and testing - Wikipedia

    en.wikipedia.org/wiki/Optical_manufacturing_and...

    Optical manufacturing and testing is the process of manufacturing and testing optical components. It spans a wide range of manufacturing procedures and optical test configurations. The manufacture of a conventional spherical lens typically begins with the generation of the optic's rough shape by grinding a glass blank. [1]

  3. Herc Rentals - Wikipedia

    en.wikipedia.org/wiki/Herc_Rentals

    Herc Rentals is an equipment rental company, owned by Herc Holdings. It was formerly a subsidiary of The Hertz Corporation before being spun-off as a separate company in 2016. The company provides rentals of heavy equipment , [ 3 ] tools, power generators and pumps, [ 4 ] as well as sales of used equipment.

  4. Hakim Optical - Wikipedia

    en.wikipedia.org/wiki/Hakim_Optical

    On May 1, 2011, Hakim Optical opened its new flagship location at Yonge–Dundas Square in Toronto which is two blocks away from the original 1967 location.. In November 2017, Hakim Optical partnered with virtual reality and augmented reality agency VusionVR Inc. to expand the in-store service by offering an app that would take a customer's selfie and apply a Snapchat-like filter of the ...

  5. Precision glass moulding - Wikipedia

    en.wikipedia.org/wiki/Precision_glass_moulding

    Transition from the optical surface to the lens outside diameter requires a minimum radius value of 0.3 mm. Volume: Volume of the lens (including flanges), V <= 4/3 π r 3 , where r is the smallest local convex radius.

  6. Equipment rental - Wikipedia

    en.wikipedia.org/wiki/Equipment_rental

    Equipment rental was first developed in Anglo-Saxon countries. It emerged in the UK after the First World War and has now become a multi-billion euro business providing a wide range of construction and industrial equipment for customers globally.The American Rental Association was founded as early as 1955, [1] and the first waves of consolidation took place in the 1970s in North America ...

  7. Battelle Memorial Institute - Wikipedia

    en.wikipedia.org/wiki/Battelle_Memorial_Institute

    Optical digital recorder - Algorithms and coatings that led to the first optical digital recorder developed by James Russell, which paved the way for the first compact disc, and the first generation jet engines using titanium alloys. [9] Armor plating for tanks in World War II. Correction fluid - Snopake, the first correction fluid, developed ...

  8. Essilor - Wikipedia

    en.wikipedia.org/wiki/Essilor

    After many years as rivals, Essel and Silor merged on 1 January 1972 to form Essilor, then the world's third-largest ophthalmic optical firm. [1] Its first year of existence was marked by the creation of Valoptec, a non-trading company composed of stockholder managers who held half the company's capital stock, and the purchase of Benoist-Bethiot, a French lens manufacturer specializing in ...

  9. Optical time-domain reflectometer - Wikipedia

    en.wikipedia.org/wiki/Optical_time-domain...

    Fiber break locators are intended to be low-cost instruments specifically designed to determine the location of a catastrophic fiber event, e.g., fiber break, point of high reflectance, or high loss. The fiber break locator is an opto-electronic tape measure designed to measure only distance to catastrophic fiber events.