Optical aberration. 19th-century illustration of an example of spherical aberration in a lens, showing the path of light rays that produce what is known as a caustic, rather than being focused at a single point. The light rays end up concentrated along a curved boundary, rather than at a point. This illustration is from 'Physique Populaire' (Emile Desbeaux, 1891). | |
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Crédit: | Science Photo Library |
Taille de l’image : | 5243 px × 3333 px |
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