Crossword puzzle clue "optical instrument"

Here are the possible solutions for optical instrument clue

Answer
Clue
Relevancy
eyepiece
Clue
Optical-instrument part
Definition
the lens nearest the eye in an optical instrument
laser
Clue
Optical instrument
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-instrument part
Definition
a piece of transparent matter with one or both surfaces curved to cause regular convergence or divergence of rays passing through it
reticle
Clue
Grid of fine lines in an optical instrument's focus
Grid in the eyepiece of an optical instrument
Definition
a network of lines in the eyepiece of an optical instrument
tethysscope
Clue
Optical instrument pointed at a moon of Saturn?
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, ___?"

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