The optical layout of the echelle spectrometer PFES

• 1- the first lenses group of the TV viewer
• 2 -the first mirror of the TV viewer
• 3 - the second mirror of the TV viewer
• 4 - the second lenses group of the TV viewer
• 5 - calibrated fiber
• 6 - comparison lamp's unit
• 7 - slit unit
• 8 - collimator's flat
• 9 - collimator's mirror
• 10 - echelle
• 11 - cross dispersion grating
• 12 - camera
• 13 - CCD.
• 14 - TV slit viewer
• 15 - filter