noun, noun which may take the genitive case particle 'no'
visible ray; visible light
Technical term in physics and optics; often used in contrast with infrared or ultraviolet rays.
可視光線は波長が約400～700ナノメートルの電磁波です。
Visible light is electromagnetic radiation with wavelengths roughly between 400 and 700 nanometers.
このカメラは可
This camera can detect not only visible light but also infrared rays.