ID:
1557
Maker's Name:
Hilger
Where made:
England
Dimensions:
6.5 × 4 × 3.5 cm
This prism is used in a spectrometer with fixed objective and eyepiece tubes. The prism sits on a rotating table between the tubes. As it rotates, it sweeps the spectral lines across the field of the eyepiece. A calibrated cylinder is part of the rotating mechanism, and displays the wavelength of the observed line.
