prism spectrograph

prism spectrograph

[′priz·əm ′spek·trə‚graf]
(spectroscopy)
Analysis device in which a prism is used to give two different but simultaneous light wavelengths derived from a common light source; used for the analysis of materials by flame photometry.
References in periodicals archive ?
Gutierrez, "Compact prism spectrographs based on aplanatic principles," Optical Engineering, vol.