Spectrometer - Intermediate (STE 10247)

Spectrometer - Intermediate (STE 10247)

This is a robust instrument designed specifically for student use, which, nevertheless if capable of very high performance.  The main structure is of heavy cast metal.  The complete instrument is mounted on  a base board which fits into a wooden case.

Scale - The 150mm diameter circle with protective shield is fixed to the telescope movement and the table is attached to the double ended vernier which reeds to 1 minute of arc.

Collimator - Mounted on a fixed pillar and fitted with 178mm focus acrhomatic objective, 25mm clear aperture .  There are also independent adjustable slits 7mm long.

Telescope - Mointed on a moveable pillar fitted with 178mm focus acrromatic objective, 25mm clear aperture.  Also fitted is an x8 Ramsden eyepiece and a glass croccline graticule.  Both the telescope and collimator have rack and pinion focusing.  Means are provided for levelling the axes of both optical units and for squaring them to the acis of rotation.  

Prism table - The tale is marked with lines to assist placing the prism with respect to the table levelling screws.  Total mss: 11kg.

Complete with: Prism Clamp, Diffraction grating holder, Wacthmakers eyeglass, Tommy bar for adjusting optical axes, Wooden Storage Box.