Habka alxanka laysarka ee kamaradaha taleefanka gacanta uma baahna xiriirinta aaladaha, ka hortagga waxyeelada dusha aaladda iyo hubinta saxnaanta farsamaynta sare. Farsamadan cusubi waa nooc cusub oo baakadaha microelectronic ah iyo tignoolajiyada isku xidhka oo ku habboon habka wax soo saarka ee kamaradaha ka hortagga ruxitaanka casriga ah. Alxanka laysarka ee saxda ah ee talefannada gacanta waxa ay u baahan tahay in la xakameeyo heerkulka qalabka, taas oo lagu gaadhi karo in la isticmaalo qaboojiyaha laser TEYU si loo habeeyo heerkulka qalabka laysarka.