This goniometer is used for exact measurement of optical data on prisms. It can also be used as a spectroscope for qualitative examination and measurement of emission and absorption spectra. Various accessories are available.
Observation tube: With combined coarse and fine drives, infinitely variable, cross-hairs, eyepiece vernier accuracy, 1 minute of arc objective: 18 mm / 160 mm
Prism: Flint glass (60°); Dispersion Angle C-F=2°; Base Length 33 mm; Height 22 mm
Scale Tube: Symmetric precision slit of hardened steel, ocular: 18 mm / 160 mm