Ukukhanya kuwukuphela komthombo wokukhanya otholakala endlini ebusuku. Ekusetshenzisweni kwansuku zonke kwasekhaya, umthelela wemithombo yokukhanya ye-stroboscopic kubantu, ikakhulukazi asebekhulile, izingane, njll. usobala. Kungakhathaliseki ukuthi ufunda esifundweni, ufunda, noma uphumule ekamelweni lokulala, imithombo yokukhanya engafanele ayigcini nje ngokunciphisa ukusebenza kahle, kodwa ukusetshenziswa kwesikhathi eside kungashiya nengozi efihliwe empilweni.

I-Lightman yethula abathengi endleleni elula yokuqinisekisa ikhwalithi yeIzibani ze-LEDSebenzisa ikhamera yocingo ukuze uqondise umthombo wokukhanya. Uma i-viewfinder inemigqa eshintshashintshayo, isibani sinenkinga "ye-strobe". Kuyaqondakala ukuthi lesi simo se-stroboscopic, okunzima ukusihlukanisa ngeso lenyama, sithinta ngqo impilo yomzimba womuntu. Lapho amehlo evezwa endaweni ye-stroboscopic ebangelwa izibani eziphansi isikhathi eside, kulula ukubangela ikhanda elibuhlungu kanye nokukhathala kwamehlo.

Umthombo wokukhanya we-stroboscopic ngokuyisisekelo ubhekisela ekuguqukeni kwemvamisa kanye nokwezikhathi kokukhanya okukhishwa umthombo wokukhanya ngokukhanya okuhlukile nombala ngokuhamba kwesikhathi. Isimiso sokuhlolwa ukuthi isikhathi se-shutter sefoni ephathekayo sishesha kunokukhanya okuqhubekayo okungu-24 ozimele/amasekhondi okungabonwa yiso lomuntu, ukuze kuqoqwe into ye-stroboscopic engabonakali emehlweni enyama.

I-Strobe inemiphumela ehlukene empilweni. I-American Epilepsy Work Foundation ikhombe ukuthi izici ezithinta ukuqaliswa kwesifo sokuwa kwe-photosensitivity ikakhulukazi zifaka phakathi ukuvama kwe-scintillation, ukuqina kokukhanya, kanye nokujula kokuguquguquka. Ocwaningweni lwethiyori ye-epithelial yesifo sokuwa kwe-photosensitive, uFisher et al. baveze ukuthi iziguli ezinesifo sokuwa zinethuba elingu-2% kuya ku-14% lokubangela ukuquleka kwesifo sokuwa ngaphansi kokukhuthazwa kwemithombo yokukhanya ye-scintillation. I-American Headache Society ithi abantu abaningi abanekhanda le-migraine bazwela kakhulu ekukhanyeni, ikakhulukazi ukukhanya okukhanyayo, imithombo yokukhanya ekhanyayo ene-flicker ingabangela i-migraine, kanti i-low frequency flicker inzima kakhulu kune-high frequency flicker. Ngesikhathi befunda umphumela we-flicker ekukhathaleni kwabantu, ochwepheshe bathole ukuthi i-flicker engabonakali ingathinta indlela yeso, ithinte ukufunda futhi iholele ekuboneni okunciphile.