Telescope Parameters
Telescope F/# Plate Scale Image of Primary
to Focal Plane
CSO 4.48 4.6 arcsec/mm 5.6"
Viper 2.1 2.3 arcsec/mm 57.5"
Viper2 3.5 1.4 arcsec/mm 96.4"
Lenses
Instrument lens material fRD (clear)D (physical) Thickness (center)
SPARO Field quartz 4.65"5.15"0.75" .10"
SPARO Pupil quartz 2.53"2.802"1.75" .23"
SPARO Pupil
biconvex
quartz 2.53"5.604"1.75" .18"
SPARO Array quartz 5.25"5.815"0.75" ?
Hertz Field quartz 2.86"3.17"1.5"1.75" .20"
Hertz Pupil quartz 2.75"3.05"1.5"1.75" .20"
Hertz Array polyethylene 5.19"2.81"
(warm)
1.5"1.70" .15"
Winston Cones
Instrument F/# Acceptance Angle Entrance AperatureExit Aperature
Stokes 3.5 8.2°3.05mm0.43mm

Contact jdotson@nwu.edu. Last updated May 21, 1997.