Diasorozat készlet, 13 db - Szabályos/szabálytalan nyílás, diffrakciós jelenség

Set of 13 objects consisting of:
6 slides with apertures shaped like the letters O and T, Y and Q, I and A, L and X, H and Z, K and V
5 slides with regularly and irregularly arranged square and circular apertures
2 slides displaying diffraction phenomena through a hole and an x-shaped aperture