Method for detecting and processing photometric parameters of lighting devices, and corresponding computer program product and controller

A method for producing photometric calibration data for a lighting device comprising a plurality of electrically powered light-radiation sources having respective light emission parameters, the method comprising:

• positioning a photometric sensor configured to be impinged upon by light radiation emitted by said lighting device;
• detecting, via the photometric sensor and with said lighting device de-activated, a background lighting level signal;
• detecting, via the photometric sensor with said lighting device activated, light-emission signals;
• processing said light-emission signals based on said background lighting level signal, and obtaining clean emission signals as a result;
• producing said photometric calibration data based on said clean emission signals;
• detecting, via the photometric sensor with said lighting device activated, at least one preliminary light-emission signal;
• processing said at least one preliminary light-emission signal based on said background lighting level signal, and obtaining at least one preliminary clean emission signal as a result;
• and
• calculating, based on said at least one preliminary clean light emission signal and said background lighting level signal, at least one signal-to-noise ratio selected among global signal-to-noise ratios over a visible light spectrum and signal-to-noise ratios over respective emission spectra of the plurality of electrically powered light radiation sources included in said lighting device with respect to which the photometric sensor has been positioned to be impinged upon by light radiation.