1) Optical device
Found on
https://www.crosswordclues.com/clue/megalethoscope
The megalethoscope is an optical apparatus designed by Carlo Ponti of Venice before 1867. The megalethoscope is the evolution of the alethoscope, invented by Ponti between 1859 and 1862. In it, photographs are viewed through a large lens, which creates the optical illusion of depth and perspective. The albumen photographs are either backlit by an ...
Found on
http://en.wikipedia.org/wiki/Megalethoscope
• (n.) An optical apparatus in which pictures are viewed through a large lens with stereoptical effects. It is often combined with the stereoscope.
Found on
http://thinkexist.com/dictionary/meaning/megalethoscope/
Meg`a·leth'o·scope noun [
Mega- +
alethoscope .] An optical apparatus in which pictures are viewed through a large lens with stereoptical effects. It is often combined with the stereoscope.
Found on
http://www.encyclo.co.uk/webster/M/41
No exact match found.
