Abstract
AN entirely novel suggestion for the production of stereoscopic photographs is proposed by Prof. G. Lipprhann. in the current number of the Comptes rendus of the Paris Academy of Sciences (March 2). Let a lens be constructed of a material possessing a refractive index n, the segments forming the front and back of the lens having the same centre of curvature and the ratio of the radius of curvature of the. front segment to that at the back being n-1. The front surface is the receiving lens, and corresponds to the lens of the eye; the back surface is covered with the sensitive emulsion, and corresponds to the retina. Owing to the chosen relation between the curvatures of the two faces an image of a point is formed by the front surface on the back one. The system is reversible; a ray of light proceeding from any point of the receiving surface will pass out at the front over exactly the same path as that taken by the incoming light in, acting on the sensitive film, and this will be true in spite of any imperfection of the lens surfaces.
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A New Method of Stereoscopic Photography . Nature 77, 452 (1908). https://doi.org/10.1038/077452a0
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DOI: https://doi.org/10.1038/077452a0