Circular Diffraction Grating Set 50x50mm with Various Grid Compositions
ab 6,83 €
Grid: grid is composed of 90 degree cross lines, 20, 40, 60 lines/MM respectively. 1 x composite grid 1. The side length of the square is 0.2mm, and the side length of the rectangle is 0.6 0.28mm.
Jetzt bei Ebay:
