Crossword puzzle clue "optical devices"

Here are the possible solutions for optical devices clue

Answer
Clue
Relevancy
lenses
Clue
Devices in optical instruments
Definition
LENS, to make a film of
prisms
Clue
Optical devices
Definition
PRISM, (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, ___?"
Optical illusion query, “Which is longer, ___?”
'Which is longer, --?' (optical illusion question)
aperture
Clue
Optical opening
Definition
an opening
apertures
Clue
Optical openings
Definition
APERTURE, an opening

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