Patent ID: 8783885

Claim:
An operating light comprising: a radiation source for producing light with a locally different color temperature distribution in a work area, in a plane parallel to a working surface, wherein said locally color temperature distribution has a radially outwardly dropping pattern with a plurality of radial areas of at least one of nearly constant, continuously changing and slightly decreasing color temperature, the plurality of radial areas comprising: a first area which covers an innermost part of the work area having a color temperature that is nearly constant and has a mean value between 4,500 K and 6,700 K; a second area, which adjoins the first area, the second area having a color temperature that decreases from an inside of the second area to an outside of the second area; and a third area, which adjoins the second area, said third area having a mean color temperature value between 3,000 K and 4,000 K.