ray tracing
optically
spectroscope
prism spectroscope
optostimulation
optical
optically active
spectropolarimeter
optical condenser
catoptrics
condenser
fiber-optic
fiberoptic
fibre-optic
fibreoptic
refract
auxetometer
dioptometer
binoculars
field glasses
opera glasses
fibre optic
retinoscope
glass
optical bench
eyepiece
optic axis
ocular
optics
serial time-encoded amplified microscopy
auxometer
optic
autorefractor
opticopneumatic
prescription
Wollaston's doublet
astigmometer
quasioptical
optosensing
opticity
optical glass
catadioptric
Nicol prism
dynactinometer
optospectroscopic
spectrogoniometer
phototuning
chromatoscanner
heteroptics
dioptrics