SPECTRALLY ADJUSTABLE LIGHT SOURCE SIMULATING DAYLIGHT AND ADAPTING TO THE AGE OF THE USER

Predmet izuma je spektralno nastavljivo svetilo, ki posnema dnevno svetlobo v danem trenutku in vzporedno lahko upošteva tudi starost uporabnika in sicer na način, da je spekter svetlobe, ki ga izseva svetilo, ustrezno korigiran v tistem delu spektra, ki je neposredno povezan s spektralno prepustnostjo očesne leče uporabnika, ki se s starostjo uporabnika spreminja. Spektralno nastavljivo svetilo z ustreznim krmiljenjem svetlečih diod (LED), prilagaja izhodni spekter, ki je mešanica spektrov, ki jihizsevajo posamezne svetleče diode, želenemu spektru, tako da se izhodni spekter čim bolj ujema z želenim spektrom. Želeni spekter se nanaša na spekter svetlobe, ki posnema spekter dnevne svetlobe v določenem delu dneva in je hkrati korigiran glede na starost uporabnika. Ujemanje izhodnega spektra z želenim spektrom je ovrednoteno z metodo direktnega ujemanja obeh spektrov, in je izraženo z vrednostjo R2. Večja vrednost R2 pomeni večje ujemanje dveh spektrov. S svetilom po izumu je omogočeno, da se izhodnispekter svetila ujema z želenim spektrom v vrednosti R2 vsaj 0,7 za toplo belo rešitev in v vrednosti R2 vsaj 0,5 za hladno belo rešitev. The subject of the invention is a spectrally adjustable luminaire that mimics daylight at a given moment and in parallel may take into account the age of the user so that the spectrum of light emitted by the luminaire is properly corrected in that part of the spectrum directly related to spectral transmittance of the user's lens, which changes with the age of the user. The spectrally adjustable luminaire with appropriate LED control adjusts the output spectrum, which is a mixture of spectra emitted by individual LEDs, to the desired spectrum, so that the output spectrum matches the desired spectrum as closely as possible. The desired spectrum refers to the spectrum of light mimicking the spectrum of daylight at a particular part of the day and is simultaneously corrected for the user's age. The matching of the output spectrum with the desired spectrum is evaluated by the method of direct matching of both spectra and is expressed by the value of R2. A higher value of R2 means a greater match of the two spectra. The luminaire according to the invention makes it possible for the output spectrum of the luminaire to match the desired spectrum at a value of R2 of at least 0.7 for a warm white solution and at a value of R2 of at least 0.5 for a cool white solution.