scioptics

from The Century Dictionary.

• noun The art of exhibiting luminous images, especially those of external objects, in a darkened room, by means of lenses, etc.

from the GNU version of the Collaborative International Dictionary of English.

• noun The art or process of exhibiting luminous images, especially those of external objects, in a darkened room, by arrangements of lenses or mirrors.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The art or process of exhibiting luminous images, especially those of external objects, in a darkened room, by arrangements of lenses or mirrors.