pho·tom·e·ter /foˈtɑmətɚ/
光度計,曝光計
pho·tom·e·ter /foˈtɑmətɚ/ 名詞
光度計,分光計
photometer
光度計
photometer
*光度計
Pho·tom·e·ter n. Physics An instrument for measuring the intensity of light, or, more especially, for comparing the relative intensities of different lights, or their relative illuminating power.
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photometer
n 1: measuring instrument for measuring the luminous intensity of
a source by comparing it (visually or photoelectrically)
with a standard source
2: photographic equipment that measures the intensity of light
[syn: light meter, exposure meter]