Special Features:

W/direct reading head; w/20 in. Camera; capable of 2650.0 angstroms of first order spectra w/5a/mm dispersion using 15000.0 gpi grating; gratings may be rotated 0.0 to 60.0 deg

Properties:

An optical instrument designed to break up the light from a source into its constituent wave lengths and to provide a means of qualitative or quantitative study of the spectrum line formed. The instrument essentially consists of four parts; the slit, the lenses, the dispersion system and photographic or photoelectric system. The instrument may incorporate a prism or grating system for the dispersion of light.