optically
optofluidics
mirrorlike
anaclastics
view finder
optic
hand-basher
glass
viewfinder
finder
crown glass
projector
Wood's glass
photoplotter
optically active
Wollaston's doublet
optical crown glass
optical crown
organic electroluminescent display
viewer
ring flash
light microscope
binoculars
television pickup tube
auxometer
grating
magnascope
reflecting
television-camera tube
pair of binoculars
pharyngometer
biocular
diffraction grating
diascopic
jeweler's glass
goniometer
ray tracing
uviol glass
optophone
optics
speculum
optical glass
collimator
prisoptometer
optical bench
Vitaglass
autocollimator
phototunable