Dialytic telescope


  • Webster's Revised Unabridged Dictionary
    • Dialytic telescope an achromatic telescope in which the colored dispersion produced by a single object lens of crown glass is corrected by a smaller concave lens, or combination of lenses, of high dispersive power, placed at a distance in the narrower part of the converging cone of rays, usually near the middle of the tube.
    • Dialytic telescope See under Dialytic.
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