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In March 2023, the Abu Dhabi Investment Authority invested $500 million in Lenskart at a valuation of $4.5 billion. [2] In June 2023, the company raised $100 million from ChrysCapital. [26] In June 2024, Lenskart secured $200 million from Temasek and Fidelity in a secondary deal at $5 billion valuation. [27] [28]
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 ...
In 2010, under Valyoo Technologies, he began an eyewear retail website named Lenskart along with co-founder Amit Chaudhary. [10] In 2011, they were joined by Sumeet Kapahi, who was working for another eyewear brand.
On Jan 9, 2012 Sigma announced its first two lenses for Micro Four Thirds, the "30mm f / 2.8 EX DN and the 19mm f / 2.8 EX DN lenses in Micro Four Thirds mounts". [58] In a press release posted on January 26, 2012, Olympus and Panasonic jointly announced that "ASTRODESIGN, Inc., Kenko Tokina Co., Ltd. and Tamron Co., Ltd. join[ed] the Micro ...
This is a list of autofocus prime lenses designed for mirrorless cameras that measure less than 30 millimeters in length — limit one per brand and focal length combination. In 2024, Viltrox released the thinnest autofocus pancake lens ever produced for full-frame sensors: a 28mm F4.5 lens that is only 15mm thick.
Elmar lenses have a maximum aperture ranging between f/2.8 and f/4. Current Elmar lenses have a maximum aperture of f/3.8 or f/4, as in the Elmar-M 24 mm f/3.8 and Tri-Elmar-M 16-18-21 mm f/4. [1] The term Elmar is sometimes combined with: Super, Tele, APO, Macro or Vario. Leica also uses the name Elmarit for some lenses.
Optical lens design is the process of designing a lens to meet a set of performance requirements and constraints, including cost and manufacturing limitations. Parameters include surface profile types (spherical, aspheric, holographic, diffractive, etc.), as well as radius of curvature, distance to the next surface, material type and optionally tilt and decenter.
This is for companies who exclusively or predominantly create optical lenses for still and film photography. Subcategories This category has the following 10 subcategories, out of 10 total.