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> Lens demonstration set - glass w free shipping
Lens demonstration set - glass w free shipping
Best Science Supplies for Quality & Dependability
This educational and interesting set is designed show how the most important types of lenses work.
They are 38mm, optically true with safe ground glass edges and the set includes one each of double convex, plano-convex, double concave, plano-concave, concavo-convex and convexo-concave lenses arranged in a clean white foam lined, finised wood case.
Bi-concave lens: Used for reducing the size or spreading out light, with two inward curving symmetrical faces.
Bi-convex lens: Used for magnifying or condensing lenses, with two outward curving symmetrical faces.
