Superior quality glass lenses are useful for teaching a variety of optical principles. Double concave lenses have two inwardly curved surfaces, a negative focal length, and are often used to aid in the distribution of light, as well as, image reduction.

International Data
HTS Code	9001905000
Country Of Origin	China
Product Code
UPC-12	795721144651

38mm D x 10cm Focal Length

Product Code: 7-909-8

$1.09

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Tags: 7-909-8, Focal Length, refraction, dispersion, light, optics, science, education,

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