Here are the possible solutions for optical device clue
Answer
Clue
Relevancy
bifocal
Clue
Optical device
Definition
having two focal points
laser
Clue
Optical device
Definition
a source of high-intensity optical, infrared, or ultraviolet radiation produced as a result of stimulated emission maintained within a solid, liquid, or gaseous medium
lens
Clue
Optical device
Definition
a piece of transparent matter with one or both surfaces curved to cause regular convergence or divergence of rays passing through it
prism
Clue
Optical device
Female character in The Importance of Being Earnest — optical device
Definition
(Greek) a solid figure of which the two ends are similar, equal, and parallel rectilineal figures, and the sides parallelograms
aas
Clue
Batteries in optical mice
Definition
AA, (Hawaiian) a volcanic rock consisting of angular blocks of lava with a very rough surface
aorb
Clue
Optical illusion question, "Which is longer, ___?"
