noun, Television.
a camera tube, more sensitive than the orthicon, in which an electron image generated by a photocathode is focused on one side of a target that is scanned on its other side by a beam of low-velocity electrons to produce the output signal.
a television camera tube in which electrons, emitted from a photoemissive surface in proportion to the intensity of the incident light, are focused onto the target causing secondary emission of electrons


Read Also:

  • Image printer

    noun 1. (computing) a printer which uses optical technology to produce an image of a complete page from digital input

  • Image processing

    noun 1. the manipulation or modification of a digitized image, esp in order to enhance its quality graphics Computer manipulation of images. Some of the many algorithms used in image processing include convolution (on which many others are based), FFT, DCT, thinning (or skeletonisation), edge detection and contrast enhancement. These are usually implemented in software […]

  • Imager

    [im-ij] /ˈɪm ɪdʒ/ noun 1. a physical likeness or representation of a person, animal, or thing, photographed, painted, sculptured, or otherwise made visible. 2. an optical counterpart or appearance of an object, as is produced by reflection from a mirror, refraction by a lens, or the passage of luminous rays through a small aperture and […]

  • Image recognition

    graphics, artificial intelligence The identification of objects in an image. This process would probably start with image processing techniques such as noise removal, followed by (low-level) feature extraction to locate lines, regions and possibly areas with certain textures. The clever bit is to interpret collections of these shapes as single objects, e.g. cars on a […]

Disclaimer: Image-orthicon definition / meaning should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website is for informational purposes only.