red flashlight
Ruby-colored portable lamp
A red flashlight emits red light instead of white, used to preserve night vision in astronomy, military operations, and photography darkrooms.
Red light doesn't trigger the eye's full adaptation response, so you can see what you're doing without losing the ability to see in darkness: Astronomers use red flashlights at star parties.
- torchHandheld burning light source
- beamStructural support member
- nightDark hours daily
- darkroomFilm processing chamber
- photographyCreating images from light
red lens · military · tactical · hunting · astronomy · infrared · preserving · navigation · camping · lens · filter · dim · night vision · glow · ruby · crimson · battery · signal
- stargazingtelescope, stargazing guides, night sky, stars, constellation
- astronomystars, moon, sun, planet, planets
- astronomy toolstelescope, binoculars, star chart, star map, planetarium
- pilot gearflight helmet, flight suit, flight bag, headset, logbook
visibility/detectability
red flashlightspotlight
Concentrated illumination source
searchlight · floodlight · beacon · signal flare · strobe light
flashlight, flash, light, reds, redder, reddest, reddish, redden, reddening