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ID Code: L6-52
Purpose: Allow individual experience with plastic Fresnel lenses.
Description: Several types of Fresnel lenses are included: (1) a sheet of 20 identical divergent (concave) Fresnel lenses (seen in the photograph at the right above), (2) a 12" diameter divergent (concave) flexible Fresnel lens, called a "Lensor" (seen in the photograph in the center above), and (3) convergent (convex) Fresnel lenses of 5.9, 12.5, 14.5, 15.2, 22.5, and 30.5 cm focal lengths, among others.

The convex Fresnel lenses were obtained from a facility which manufactures optically programmed traffic signals (See Demonstration L6-54: OPTICALLY PROGRAMMED TRAFFIC SIGNAL - MODEL.)

Availability: Available