A circular electronic light used in photography, film, microscopy, etc., to give even, shadowless lighting of a subject close to the lens; specifically = "ring flash".
Origin
1950s; earliest use found in Journal of Paleontology.
Definition of ring light in US English:
ring light
noun
A circular electronic light used in photography, film, microscopy, etc., to give even, shadowless lighting of a subject close to the lens; specifically = "ring flash".
Origin
1950s; earliest use found in Journal of Paleontology.