\Sci*op"tic\, a. [Gr. ? shadow + ? belonging to sight:
cf. F. scioptique. See {Optic}.] (Opt.)
Of or pertaining to an optical arrangement for forming images
in a darkened room, usually called scioptic ball.
{Scioptic ball} (Opt.), the lens of a camera obscura mounted
   in a wooden ball which fits a socket in a window shutter
   so as to be readily turned, like the eye, to different
   parts of the landscape.