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projection optical device

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  • Projection keyboard — A projection keyboard is a virtual keyboard that can be projected and touched on any surface. The keyboard watches finger movements and translates them into keystrokes in the device. Most systems can also function as a virtual mouse or even as a… …   Wikipedia

  • Optical printer — A 35 mm optical printer with two projector heads, used in producing movie special effects. Starting from the left, you can see light shining from the lamp house, then at A is the first projector s film gate, at B a lens that projects the film in… …   Wikipedia

  • Digital micromirror device — DLP chip A digital micromirror device, or DMD, is an optical semiconductor that is the core of DLP projection technology[1], and was invented by Dr. Larry Hornbeck and Dr. William E. Ed Nelson of Texas Instruments (TI) in 1987. The DMD project… …   Wikipedia

  • eye, human — ▪ anatomy Introduction  specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit       The eye is protected from mechanical injury… …   Universalium

  • Mirror — looking glass redirects here. For other uses, see Looking Glass (disambiguation). This article is about wave reflectors (mainly, specular reflection of visible light). For other uses, see Mirror (disambiguation). A mirror, reflecting a vase A… …   Wikipedia

  • printing — /prin ting/, n. 1. the art, process, or business of producing books, newspapers, etc., by impression from movable types, plates, etc. 2. the act of a person or thing that prints. 3. words, symbols, etc., in printed form. 4. printed material. 5.… …   Universalium

  • Liquid crystal display — LCD redirects here. For other uses, see LCD (disambiguation). Reflective twisted nematic liquid crystal display. Polarizing filter film with a vertical axis to polarize light as it enters. Glass substrate with ITO electrodes. The shapes of these… …   Wikipedia

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  • image — 1. Representation of an object made by the rays of light emanating or reflected from it. 2. Representation produced by x rays, ultrasound, tomography, thermography, radioisotopes, etc. 3. To produce such representations. [L. imago, likeness]… …   Medical dictionary

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