Solar Laboratory Spectrograph (SLS) 


M1, M2 - mirrors of celostat; M3 - primary mirror of colar teleskope; M4 - secondary mirror of solar teleskope; S- slit; M5 -colimator; G - grating; F1 - Coronado filter 0.7 A; F2 - a narrow band Fabry Perrot 1 A; F - red filter; O (1 - 4) - objectives; CCD1 - slit-jaw, CCD2 - H-alpha, CCD3 - Ca 8542 A, CCD4 - D3.