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EISCO Optical Glass Lens, 3" (75mm) - 200mm Focal Length - Ground, Beveled Edges - Use as Top Spinning Base
EISCO Optical Glass Lens, 3
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Optical Glass Lens, Double Concave, 75mm Diameter, 20cm Focal Length

(1) Lens

This is a high quality, optically true lens.

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Product Review

Optical Glass Lens, Double Concave, 75mm Diameter, 20cm Focal Length

(1) Lens

This is a high quality, optically true lens.



  • DOUBLE CONCAVE || Highly polished, double concave lens
  • SPHERICAL || Lens measures 3" (75mm) in diameter and approximately 12mm thick
  • 200MM FOCAL LENGTH || Diverging lens with a 200mm focal length
  • OPTICALLY WORKED GLASS || Made of high quality, optically worked glass. Highly polished with beveled, ground edges
  • GREAT FOR PHYSICS CLASSROOMS or TOP SPINNING || This optically true lens is excellent for physics classroom demonstrations in optics and light refraction. It's smooth, concave surface also makes this lens ideal for top spinning

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