Question

what is the persistence of lens​

Answer 1

Explanation:

Your eye and brain retain a visual impression for about 1/30 of a second. (The exact time depends on the brightness of the image.) This ability to retain an image is known as persistence of vision. As you swing the tube from side to side, the eye is presented with a succession of narrow, slit-shaped images.

Answer 2

A persistence lens is a hierarchy of disjoint upper and lower level sets of a continuous luminance image's Reeb graph. A persistence lens determines a varilet basis for the luminance image, in which image simplification is a realized by subspace projection.

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