C250, Disc Aperture for electron microscopes, D 250µm

Pinholes - C Serie

Prepared in pure copper foil. Very high roundness edge definition. Blackened on one surface. Mounted in black anodized aluminium discs. Mounted in a recessed hole in an anodised holder.

Uses:

• Spatial filtering
• Controlling diameter of light beams
• creating point light sources
• image analysis etc.

Range                Tolerance

14µm                     ⁺/- 3µm

 
Note: Dust particles can create noticeable aperture problems. Therefore store in dust free envelopes and, when necesassary, clean ultrasonically.