Optical Instrument — definition

1. optical instrument (Noun)

1 definition

optical instrument (Noun) — An instrument designed to aid vision.

1 type of
instrument
16 types
binoculars esophagoscope eyeglasses field glasses glasses jeweler's glass jeweller's glass oesophagoscope opera glasses periscope prism spectroscope projector sights specs spectacles spectroscope
3 parts
lens lens system lense