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olympus-global.com. Olympus Corporation ( Japanese: オリンパス株式会社, Hepburn: Orinpasu Kabushiki-gaisha) is a Japanese manufacturer of optics and reprography products. Olympus was established on 12 October 1919, initially specializing in microscopes and thermometers. [ 4] Olympus holds roughly a 70 percent share of the global ...
Website. www .fei .com. FEI Company ( Field Electron and Ion Company, FEI) was an American company that designed, manufactured, and supported microscope technology. Headquartered in Hillsboro, Oregon, FEI had over 2,800 employees and sales and service operations in more than 50 countries around the world. Formerly listed on the NASDAQ, it is ...
Edmund Scientific Corporation, based in Barrington, New Jersey, was founded in 1942 as a retailer of surplus optical parts like lenses. It later branched out into complete systems like telescopes and microscopes, and in the 1960s, a wide variety of science toys and kits. Through the 1970s and 80s they were best known for their mail order sales ...
Dark-field microscopy (also called dark-ground microscopy) describes microscopy methods, in both light and electron microscopy, which exclude the unscattered beam from the image. Consequently, the field around the specimen (i.e., where there is no specimen to scatter the beam) is generally dark. In optical microscopes a darkfield condenser lens ...
The optical microscope, also referred to as a light microscope, is a type of microscopethat commonly uses visible lightand a system of lensesto generate magnified images of small objects. Optical microscopes are the oldest design of microscope and were possibly invented in their present compound form in the 17th century.
Phase-contrast microscope. Phase-contrast microscopy (PCM) is an optical microscopy technique that converts phase shifts in light passing through a transparent specimen to brightness changes in the image. Phase shifts themselves are invisible, but become visible when shown as brightness variations.
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