a film printer used in making optical effects, consisting basically of a camera that photographs the image with special lenses to enlarge, reduce, distort, etc., and a projector that transfers the image to the print stock, as distinguished from a contact printer.

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    noun, Physics, Optics. 1. a method for increasing the number of atoms or molecules occupying higher energy levels by irradiating them with light of the proper frequencies to raise them to those levels.

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    noun 1. See pyrometer

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    noun, Physical Chemistry. 1. the angle at which the plane of polarized light is rotated when passed through an optically active substance. noun 1. the angle through which plane-polarized light is rotated in its passage through a substance exhibiting optical activity optical rotation n. The change or rotation in the plane of polarization that occurs […]

  • Optical-scanning

    noun 1. the process of interpreting data in printed, handwritten, bar-code, or other visual form by a device (optical scanner or reader) that scans and identifies the data.

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