Ko koe i te waahi tika mo te maakete laser.Be inaianei kua mohio koe, e mohio ana koe ki te hanga o te S&A. .Kei whaainga ki te whakarato i te maakete laser teitei o te kounga teitei.
Pērā i te mīhini whakamatao wai hau whakamatao a S&A Teyu CWUL-05 i hokona e Mr. Willemse o Netherlands hei whakamatao i te mīhini tohu taiaho UV 355nm.
Mai i te hanganga tuatahi o te tikanga tohu taiaho i te tekau tau atu i 1970, kua tino tere te whanaketanga. Tae noa ki te tau 1988, kua riro te tohu taiaho hei tētahi o ngā tono nui rawa atu, e 29% o ngā tono ahumahi katoa o te ao.