Provide a convenient way to illustrate the properties of lenses to students.
Ground edges
These lenses are made of polished glass and have ground edges. The bi-concave lens is used for spreading out or reducing light; it has two inward-curving, symmetrical faces. Bi-convex lenses are used as magnifying or condensing lenses, with two outward curving symmetrical faces.
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We are currently unable to calculate your contract price for this item. List price is being displayed temporarily. When your order is processed, you will be invoiced at your contract price even though list price is displayed now