Efficiency of Instrument excluding filter but including detector for large field objective. Total efficiency including narrow band 2.28 mm filter is 0.362. Total efficiency of red grism with longpass filter in SOFI including optical loss of all components and quantum efficiency of detector. Difference of 2 spectra with blackbody at temperatures 30 C and 60 C and slit of 2 arcseconds were used. Total efficiency of SOFI with narrow band filters in spectroscopy mode including optical loss of all components and quantum efficiency of detector.
Upper curve is efficiency with red grism and longpass filter.
Difference of 2 spectra with blackbody at temperatures 30 C and 60 C and slit of 2 arcseconds were used. Optical quality of objective LF at 11x11 positions within the field expressed in terms of full width half maximum. Optical quality of objective LF at 11x11 positions within the field expressed in terms of Strehl ratio. Image of point source taken with objective LF at center of the array. Image of point source taken with objective LF in upper left corner of the array.