- photoelectric meter
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an exposure meter using a photocell for the measurement of light intensity.
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Universalium. 2010.
photoelectric meter
Look at other dictionaries:
photoelectric meter — /ˌfoʊtoʊəˌlɛktrɪk ˈmitə/ (say .fohtohuh.lektrik meetuh) noun an exposure meter using a photoelectric cell for the measurement of light intensity …
photoelectric meter — Photog. an exposure meter using a photocell for the measurement of light intensity … Useful english dictionary
photoelectric exposure meter — photoelectric exposure meter, Photography. a type of exposure meter in which the light on a subject is measured by a photoelectric cell … Useful english dictionary
photoelectric effect — Physics. the phenomenon in which the absorption of electromagnetic radiation, as light, of sufficiently high frequency by a surface, usually metallic, induces the emission of electrons from the surface. Also called photoemission. [1890 95] * * *… … Universalium
Photoelectric exposure-meter — Фотоэлектрический экспозиметр … Краткий толковый словарь по полиграфии
Light meter — A light meter is a device used to measure the amount of light. In photography, a light meter is often used to determine the proper exposure for a photograph. Typically a light meter will include a computer, either digital or analogue, which… … Wikipedia
Selenium meter — A selenium meter is a light measuring instrument based photoelectric properties of selenium. The most common usage of such light meters is measuring the exposure value for photography. The electric parts of such a meter are an electromagnetic… … Wikipedia
radiation measurement — ▪ technology Introduction technique for detecting the intensity and characteristics of ionizing radiation, such as alpha, beta, and gamma rays or neutrons, for the purpose of measurement. The term ionizing radiation refers to those… … Universalium
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Film speed — is the measure of a photographic film s sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ISO system. A closely related ISO system is used to measure the sensitivity of digital… … Wikipedia
