CRI most commonly stands for Color Rendering Index, which is a measurement of how accurately a light source displays the colors of objects compared to natural sunlight. The index is rated on a scale from 0 to 100, with higher values indicating better color accuracy, and a perfect score of 100 representing colors as they appear under natural sunlight.
Additionally, CRI can also stand for Critical Response Indicator in maritime operations, which is a tool for real-time monitoring and decision support during emergencies at sea, but this is a more specialized use.
The primary and most widely known meaning remains the Color Rendering Index used in lighting and color fidelity evaluations.
