Description
These pinholes are prepared from pure copper foil, 3 mm in diameter, 25 microns thick. They possess very high roundness and edge retention. Blackened on one surface. Mounted in black anodized aluminum discs. Mounted in a recessed hole in an anodized holder, 16 mm in diameter. Applications: – Spatial filtering – Controlling the diameter of light beams – Creating point light sources – Image analysis – Etc.
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