Ukususela ekuqaleni kwexesha, iimpawu zonyango zokukhanya ziye zaqatshelwa kwaye zasetyenziswa ekunyangeni. AmaYiputa amandulo akha iisolariums ezifakwe iglasi enemibala ukuze zisebenzise imibala ethile ye-spectrum ebonakalayo ukunyanga izifo. YayingamaYiputa aqala ukuqonda ukuba ukuba ufaka imibala kwiglasi, iya kucoca zonke ezinye ii-wavelengths ze-spectrum ebonakalayo yokukhanya kwaye ikunike uhlobo olucocekileyo lokukhanya okubomvu, okuImitha ye-600-700 nanometer wavelength.Ukusetyenziswa kwasekuqaleni ngamaGrike namaRoma kugxininise imiphumo yobushushu yokukhanya.
Ngo-1903, uNeils Ryberg Finsen wanikwa iMbasa yeNobel kwezonyango ngokusebenzisa ngempumelelo ukukhanya kwe-ultraviolet ukunyanga ngempumelelo abantu abanesifo sephepha. Namhlanje uFinsen uqatshelwa njengoyise ka-unyango lwe-phototherapy lwanamhlanje.
Ndifuna ukukubonisa incwadana endiyifumeneyo. Yeyasekuqaleni kweminyaka yoo-1900 kwaye ngaphambili ifundeka ngolu hlobo 'Yonwabela ilanga ngaphakathi endlwini kunye nelanga lasekhaya.' Yimveliso eyenziwe eBritane ebizwa ngokuba yiVi-Tan ultraviolet home unit kwaye ngokuyintloko yibhokisi yokuhlamba yezibane ze-ultraviolet incandescent. Inebhalbhu ye-incandescent, isibane somphunga se-mercury, esikhupha ukukhanya kwi-ultraviolet spectrum, esiya kubonelela nge-vitamin D.