optical spectroscope

optical spectroscope

[′äp·tə·kəl ′spek·trə‚skōp]
(spectroscopy)
An optical instrument, consisting of a slit, collimator lens, prism or grating, and a telescope or objective lens, which produces an optical spectrum arising from emission or absorption of radiant energy by a substance, for visual observation.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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The spectroscopy data was taken by optical spectroscope connected with computer and its lens was fitted at three different position from anode (1, 2 and 3) cm as shown in Fig.
Investigation of intensity distribution by image analysis for DC discharge

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