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A microscopy slide scanner. Whole slide image quality comparison, with a slide scanned with a 20x objective and about 0.8 gigabytes (GB) in size to the left, and a 40x objective and approximately 1.2 GB in size to the right. Each image shows a red blood cell. Digital slides are created from glass slides using specialized scanning machines.
Digital slides can be retrieved from a storage system, and viewed on a computer screen, by running image management software on a standard web browser, and assessed in exactly the same way as on a microscope. [1] Digital slides can be used as an alternative to traditional viewing for the purpose of teleconsultation. [2]
Typically, nitrocellulose slides have a thin, opaque film of nitrocellulose on a standard 25mm × 75 mm glass microscope slide. The film is extremely sensitive to contact, and to foreign material; contact causes deformation and deposition of material, especially liquids. [citation needed]
A flying-spot scanner (FSS) uses a scanning source of a spot of light, such as a high-resolution, high-light-output, low-persistence cathode ray tube (CRT), to scan an image. Usually the image to be scanned is on photographic film, such as motion picture film, or a slide or photographic plate. The output of the scanner is usually a television ...
1967 The Flying Spot Color Slide Scanner made, with two slides with manual changeover. 1975 The Model Mk III used a new system called jump scan Analog. 1977 The first Rank Cintel Flying Spot Scanner was introduced into North America by MPV, (Motion Picture Video Corporation, Toronto) and the first colorist and pan & scan operator was the then ...
The stepper was itself replaced by the step-and-scan systems (scanners) which offered an additional order of magnitude resolution advance. Step-and-scan systems work by scanning only a small portion of the mask for an individual IC, and thus require much longer operation times than the original steppers.
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Alexander Murray and Richard Morse invented and patented the first analog color scanner at Eastman Kodak in 1937. Intended for color separation at printing presses, their machine was an analog drum scanner that imaged a color transparency mounted in the drum, with a light source placed underneath the film, and three photocells with red, green, and blue color filters reading each spot on the ...
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