GB190700916A - Reflecting Intruments Annulling the Perception of Depth in Binocular Vision. - Google Patents

Abstract

916. Rohr, M. von. Jan. 14. Reflectors; telescopes; microscopes; reading- glasses; optical instruments.-By means of a series of reflectors, binocular vision is rendered virtually monocular. In the simplest arrangement, the right eye r, Fig. 1, views the object directly through a partly transparent reflector a, and the left eye l receives the rays from the object after two reflections in mirrors a, b. The virtual position of the left eye is at l<1>. Modifications are described in which by the use of four reflecting surfaces a, g, h, i, Figs. 4 and 6, the virtual positions of the two eyes coincide. The mirror p, Fig. 6, is rotated to adjust the instrument for various interpupillary distances; the mirror b, Fig. 1, need only be shifted laterally for the same purpose. Fig. 7 illustrates another modification in which the reflecting surfaces a<o>, h<o> forming the two intermediate mirrors are separated but arranged so as to produce collinear surfaces. By suitable arrangements, the device can be fitted in telescopes and microscopes.