Eyes and spectacles / by M. von Rohr ; rendered into English by A. Harold Levy.

  • Rohr, M. von (Moritz), 1868-1940.
Date:
[1912?]
Catalogue details

Licence: In copyright

Credit: Eyes and spectacles / by M. von Rohr ; rendered into English by A. Harold Levy. Source: Wellcome Collection.

Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)

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    Fig. 1. A horizontal section through the right eye. H—Cornea. L—Crystalline Kw—Aqueous. Lens. G—Vitreous. NN—Retina. gF—Yellow Spot. bF—Blind Spot SS—Sclerotic. Fig. Vertex curvatures and principal points in the optical system of Gullstrand's schematic resting eye. a—Medium of the Cornea. b—The Aqueous and the Vitreous. RADII. f- c—The Lens. d—The equivalent nuclear Lens. At Rest. Accomd. mm. mm. nun. r, = 7-7 7-7 tx = 0-5 r, = 6'8 6-8 t, = 3-1 »3 - 10-0 5-33 t, = 0-546 r4 = 7-911 2-655 t\ = 2-419 r5 = -5-76 -2-655 t5 = 0-635 y6 = -6-0 -533 T } 17-06 ~ { and 22-785 1-376 1-336 1-386 1-406 1-386 1-336 H H 0 0 Fig. 3. The relation of the object points to the principal points. Both possible positions of the object O to the principal point of the eye H are given ; to the left a real object point, to the right a virtual object point, both On the optic axis.