From this he correctly deduced that these bright bands were produced by light coming from both edges of the diffracter but since bright bands outside the shadow remained he deduced that they must result from light reflected from only one edge of the diffracter.
Mula sa mga ito siya nang tama deduced na ang mga makinang band ay nagawa sa pamamagitan ng ilaw na nagmumula sa parehong gilid ng diffracter ngunit dahil matalino band sa labas ng shadow naiiwan siya deduced na sila ay dapat na resulta mula sa reflected light mula sa isa lamang gilid ng diffracter.