arotahi arotahi ā-rangi

Ko te kaupapa o te whakawhanake i ngā karāhe arotahi Air-Spaced he whakaiti i te rerekētanga me te whakatutuki i te rahi iti rawa o te ira. Ka whakatikatikahia te tae o ngā karāhe arotahi triplet achromatic; ka arotahi te hihi laser mahi me te hihi tirotiro kitea ki tētahi pūwāhi arotahi kotahi, ki ngā pūwāhi arotahi e rua rānei e tata ana.