Thick Lens Imaging

The thin lens equation cannot be used directly to find images formed by thick lenses. Even when Gullstrand's equation is used to find the equivalent power of the thick lens, that power is with respect to a principal plane . The thickness of the lens alters the image position and the center of the thick lens cannot in general be used as the lens position. Three methods are presented for finding the image formed by a thick lens.


Lens concepts
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