reflectogram
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reflectogram — reflecˈtogram or reflecˈtograph noun An image produced by reflectography • • • Main Entry: ↑reflect … Useful english dictionary
infrared reflectography (IR) and reflectogram — Infrared reflectography (IR) is used to examine the surface of the ground layer of any painting, even when it is covered by one or many layers of paint. The result of the IR technique is a black and white photograph called a reflectogram. Such … Glossary of Art Terms
Virgin of the Rocks — Infobox Painting| title=Virgin of the Rocks (Louvre) artist=Leonardo Da Vinci year=1483 1486 type=Oil on panel (transferred to canvas) height=199 width=122 height inch=78.3 width inch=48.0 city=Paris museum=LouvreInfobox Painting| title=Virgin of … Wikipedia
fluorescence and fluorescent lamps — The emission of electromagnetic radiation, especially of visible light, stimulated in a substance by the absorption of incident radiation and persisting only as long as the stimulating radiation is continued. Also, the property of emitting… … Glossary of Art Terms
gradation — A gradual, smoothly nuanced, step by step change from dark to light values or from large to small shapes, or rough to smooth textures, or one color to another. As a principle of design, it refers to any way of combining elements of art by… … Glossary of Art Terms
radiograph — An image produced by radiation other than visible light, especially by x rays passed through an object or by photographing a fluoroscopic image, on a radiosensitive surface, such as a photographic film. Radiographs are sometimes made of art… … Glossary of Art Terms
x-ray — or X ray or x ray or X ray A photon with a wavelength approximately 0.01 to 10 nanometers. photo of an xray of a handMore likely a stream of such photons, also known as roentgen rays (after Wilhelm Konrad Roentgen, the discoverer of x rays… … Glossary of Art Terms
