Newt is a newtonian telescope design
program. It ray traces the telescope checking for vignetting, optimizes
diagonal size, calculates baffle size and position, and a lot more. It
allows you to easily and quickly change any of the design parameters of
the telescope and to see the results immediately.
NEWT features:
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Display a side view of a Newtonian telescope.
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Modify parameters like mirror diameter, diagonal minor axis, focuser height,
focuser inside diameter, tube inside diameter and thickness, and many more.
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Use inches, centimeters, or millimeters as the unit of measure.
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Calculate baffle size and placement.
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Calculate diagonal offset.
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Calculate fields of 100% and 75% illumination.
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Load and Save files.
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Eyepiece table includes focal length, power, exit pupil, apparent field,
and true field.
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Check for minimum useable diagonal minor axis.
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Check for vignetting at the focuser.
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Check for vignetting of true field by top of tube.
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Calculate obstruction percentages for light loss and contrast reduction.
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Cast three rays through telescope - an on-center ray, a 100% light zone
ray, and a 75% light zone ray. Use these to check for vignetting at focuser,
true field cutoff, etc.
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Print specifications and dimensions to a printer.
Newt version 2.5 runs under Windows 3.1, 95, 98, ME, NT, or 2000. |