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In DVD authoring, a write strategy is a set of low-level parameters that enables an optical disc drive to write on a specific type of blank media according to its optimum specifications. [1] The media type is identified by the manufacturer and media ID, which is often unrelated to the brand of the media due to rebadging .
Modern compact discs support a writing speed of 52× and higher, with some modern DVDs supporting speeds of up to 24×. [4] Writing a DVD at 1× (1 385 000 bytes per second) [5] is approximately 9 times faster than writing a CD at 1× (153 600 bytes per second). [6] However, the actual speeds depend on the type of data being written to the disc ...
An optical waveguide is a physical structure that guides electromagnetic waves in the optical spectrum.Common types of optical waveguides include optical fiber waveguides, transparent dielectric waveguides made of plastic and glass, liquid light guides, and liquid waveguides.
Video of the process of scanning and real-time optical character recognition (OCR) with a portable scanner. Optical character recognition or optical character reader (OCR) is the electronic or mechanical conversion of images of typed, handwritten or printed text into machine-encoded text, whether from a scanned document, a photo of a document, a scene photo (for example the text on signs and ...
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In laser physics, numerical aperture is defined slightly differently.Laser beams spread out as they propagate, but slowly. Far away from the narrowest part of the beam, the spread is roughly linear with distance—the laser beam forms a cone of light in the "far field".
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Optics Letters is a biweekly peer-reviewed scientific journal published by Optica (formerly known as Optical Society of America). It was established in July 1977. The editor-in-chief is Miguel Alonso (University of Rochester). [1]