Laser diffraction set C

Set of 18 objects consisting of:
6 slides with 1 to 6 slits (slits 0.06 mm wide and 0.2 mm apart)
3 slides with line gratings: 40 lines/cm (line width 0.2 mm), 40 lines/cm (line width 0.1 mm), 80 lines/cm (line width 0.03 mm)
1 slide with line grating, 80 lines/mm
1 slide with line grating, 300 lines/mm
1 slide with a single slit (conically shaped)
1 slide with a double slit (conically shaped)
1 slide with wire grating, 300 squares/mm
1 slide with apertures 0.3, 0.4. 0.6 and 1 mm in diameter
1 hologram (transmission)
2 polarization filters