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RDV-2 |
A compact visible spectroscope which allows the direct reading
of spectral length and employs a prism for dispersion. It is
also useful for flame test of basic radicals (sodium, strontium,
potassium, copper etc.) There is a single eyepiece and independent
focussing tube for the graticule, which carries an index at 590mm.
with "D", marked right below the scale, (corresponding
to the wave length of sodium light) can be calibrated to a known
light source by adjustment of knurled screw. The amount of light
admitted to the spectroscope can be regulated by a variable slit,
adjusted by a knurled ring round the rating tube. |
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RDV-2 |
