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Beginning in 2000, Edmund Optics offered a variety of experimental grade and stock clearance items via a print catalog and online under a separate business named Anchor Optics, but this operation ceased in 2016, and the current Anchor Optics web site now redirects to a page at Edmund Optics listing clearance items. [5]
When Edmund Scientific introduced the telescope in 1976 they called it "The Edmund Wide-Field Telescope" with a Part Number "2001" [5] Edmund had a public contest which ran until November 15, 1976, to come up with a name. [6] The winning name was "Astroscan 2001". The "2001" part of the name was dropped over time.
Direct surface surveying (no intervening optics, for example Foucault knife-edge test, Ronchi test, Caustic test) Auxiliary optics (null correctors, computer-generated holograms, etc.) Interferometric testing; The Fizeau interferometer is the standard type of interferometer that is used in optical fabrication. [12]
OTC hearing aids like Zepp Clarity use the same basic technology as some prescription hearing aids. They amplify sounds using a microphone, amplifier, and speaker but do not require custom molds ...
The hearing aid market has advanced by leaps and bounds since the FDA's 2022 regulatory change allowing hearing aids to be sold over the counter. The greatly increased competition between ...
David Aikens, director of Optics and Electro-Optics Standards Council, [9] presented a recommended conversion chart that preserves the level of quality control, or percent fall, in ISO scratch & dig testing versus the military standard. For example 5/2x0.40; L 3 x0.010 is a statistically-equivalent standard to 60-40 of the strict military ...
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At least 35 children were killed and six others critically injured in a crowd crush at a funfair in the Nigerian city of Ibadan on Wednesday, police said.