This affordable double-concave (also called bi-concave) lens is made of high-quality clear optical glass and is excellent for classroom optics experiments. It has a 50 mm (approx 2 inches) diameter and 15cm (approx 6 inches) focal length.
Features:
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Double-concave (bi-concave) lens
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Made of clear optical glass
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Diameter: 50 mm (approx 2 inches)
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Focal length: 15 cm (approx 6 inches)
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Thickness: 5 mm
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Polished safety edges
Age:
14 +
Approx. Ship Size:
2.50 x 2.00 x 0.40 inches
6.35cm x 5.08cm x 1.02cm
Weight:
0 lb 1 oz
0.02 kg
Warning:
CHOKING HAZARD
Small parts. Not for children under 3 yrs.