IEC Spectroscope - Plastic with Calibration Scale

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The IEC compact Direct Vision Spectroscope is a very useful device for measuring the wavelength of light. An adjustable slit allows the light to enter the black chamber and the vie wing eyepiece carries a 600 line/mm grating. The eye sees the incoming light split into its colours or wavelengths that appear to be deflected to the right hand side. The coloured bands appear over a scale calibrated in nanometres (nm) with each digit on the scale representing 100nm.A useful PDF file introduces the principles and explains Angstrom units, nanometres, the spectrum and much more. Show more