optical instrument
Lens-based viewing tool
An optical instrument is a device that uses lenses, mirrors, or other components to manipulate light for viewing, measuring, or recording: microscopes, telescopes, binoculars, cameras.
The term covers tools that magnify distant or tiny objects, correct vision, or capture images.
- lensLight-focusing curved glass
- magnifying glassHandheld lens for enlargement
- telescopeInstrument magnifying faraway objects
- microscopeInstrument for viewing minute objects
- binocularsHandheld dual-lens magnifier
field of view · magnifying · prism · eyepiece · lens cap · focus · viewfinder · aperture · refraction · scope · spectacles · reading glasses · monocle · looking glass · periscope · kaleidoscope · zoom · glass
sensory modality of instrument
optical instrumentacoustic instrument
Music device needing no power
sonar · radar · radio telescope · Geiger counter · seismograph
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