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  2. Costa Del Mar - Wikipedia

    en.wikipedia.org/wiki/Costa_Del_Mar

    Costa Del Mar or simply Costa is an American manufacturer of polarized sunglasses based in Daytona Beach, Florida. [1] It is a wholly owned subsidiary of EssilorLuxottica . Their sunglasses are popular in the sport sunglasses market, and are considered good for outdoor sports practicing, such as Summer activities, recreational fishing and boating .

  3. Luxottica - Wikipedia

    en.wikipedia.org/wiki/Luxottica

    The new entity will be worth around $50bn (£37bn), sell close to a billion pairs of lenses and frames every year, and have a workforce of more than 140,000 people." [ 34 ] On 1 October 2018 the new holding company EssilorLuxottica was founded, resulting in combined market capitalization of approximately €46.3 billion as of the date of the ...

  4. Category:Lens manufacturers - Wikipedia

    en.wikipedia.org/wiki/Category:Lens_manufacturers

    Pages in category "Lens manufacturers" The following 51 pages are in this category, out of 51 total. This list may not reflect recent changes. A. Angénieux; C.

  5. Lens - Wikipedia

    en.wikipedia.org/wiki/Lens

    A burning apparatus consisting of two biconvex lens. A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction.A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (elements), usually arranged along a common axis.

  6. Thin lens - Wikipedia

    en.wikipedia.org/wiki/Thin_lens

    A lens may be considered a thin lens if its thickness is much less than the radii of curvature of its surfaces (d ≪ | R 1 | and d ≪ | R 2 |).. In optics, a thin lens is a lens with a thickness (distance along the optical axis between the two surfaces of the lens) that is negligible compared to the radii of curvature of the lens surfaces.

  7. Orthokeratology - Wikipedia

    en.wikipedia.org/wiki/Orthokeratology

    Orthokeratology lens. Orthokeratology, also referred to as Night lenses, Ortho-K, OK, Overnight Vision Correction, Corneal Refractive Therapy (CRT), Accelerated Orthokeretology, Cornea Corrective Contacts, Eccentricity Zero Molding, and Gentle Vision Shaping System (GVSS), is the use of gas-permeable contact lenses that temporarily reshape the cornea to reduce refractive errors such as myopia ...

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