Lighting apparatus with optimum stimulation of non-visual functions

Lighting equipment, in particular for an operating theater, comprising:

• a lighting device with a plurality of light sources for delivering white light having a tunable light spectrum, and
• a monitoring and control device that controls said light sources in such a manner as to modulate said light spectrum in a repeatable modulation cycle without interruption, which cycle comprises a first period of time during which said light spectrum is red-enriched, a second period of time during which said light spectrum is gradually modulated from red to blue, a third period of time during which said light spectrum is blue-enriched, and a fourth period of time during which said light spectrum is modulated gradually from blue to red, wherein said monitoring and control unit is configured to detect reception of a signal indicating a human presence in the vicinity of said lighting device, and in response to said signal being detected, said monitoring and control device reinitializes said modulation cycle when said modulation cycle is in said first period of time, or gradually modulates said light spectrum from blue to red during a transient period of time when said modulation cycle is in said second, third or fourth period of time before reinitializing said modulation cycle.