Sight: An Exposition of the Principles of Monocular and Binocular VisionKegan Paul, 1881 - 307 páginas |
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Página 17
... passes under the lids , becoming here thin and tender mucous membrane ; it is then reflected from the back part of the lid to the anterior surface of the white portion of the ball ( Fig . 2 , a a ) , then passes for- ward again over the ...
... passes under the lids , becoming here thin and tender mucous membrane ; it is then reflected from the back part of the lid to the anterior surface of the white portion of the ball ( Fig . 2 , a a ) , then passes for- ward again over the ...
Página 19
... passes forward , contracts to a slender tendon , passes through a loop situated in the forward part of the socket , on the inner ( nasal ) and up- per side ( Fig . 3 , c ) ; it then turns upon itself backward and outward , passes over ...
... passes forward , contracts to a slender tendon , passes through a loop situated in the forward part of the socket , on the inner ( nasal ) and up- per side ( Fig . 3 , c ) ; it then turns upon itself backward and outward , passes over ...
Página 26
... passes from each point to the object , and goes to its own place in the image ( Fig . 6 , B ) , and the conditions of distinct- ness are fulfilled ; but the image is now infinitely faint , and therefore invisible . If , now , we try to ...
... passes from each point to the object , and goes to its own place in the image ( Fig . 6 , B ) , and the conditions of distinct- ness are fulfilled ; but the image is now infinitely faint , and therefore invisible . If , now , we try to ...
Página 28
... passes straight through without deviation ; rays a little way from the central are bent a little ; rays farther away are bent more and more according to their angle of divergence , so that they all meet at the same point , b ...
... passes straight through without deviation ; rays a little way from the central are bent a little ; rays farther away are bent more and more according to their angle of divergence , so that they all meet at the same point , b ...
Página 67
... passing a spark of electricity through the head or through the eye in such wise as to penetrate the retina or traverse the optic nerve . The phenom- enon has also been observed in cases of extirpation of the eye at the moment of section ...
... passing a spark of electricity through the head or through the eye in such wise as to penetrate the retina or traverse the optic nerve . The phenom- enon has also been observed in cases of extirpation of the eye at the moment of section ...
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Términos y frases comunes
angle bacillary layer binocular eye binocular perspective binocular vision camera central spot Cheaper Edition ciliary muscle Cloth colors combined images cones corresponding points cross Demy 8vo depth of space distant objects distinct double images evident exactly Experiment external images farther Fcap fibers field of view focal adjustment foreground forms of perspective Frontispiece heteronymously horizontal horopter identical points Illustrations impression inches inclination interocular space jects judgments Large post 8vo left eye lens light line of sight look median plane monocular motion muscles naked eyes nearer nose object or scene observer ocular optic axes optic chiasm optic convergence optic nerve outward parallel perception of depth perfectly Poems point of sight position projection represent retina retinal images right and left right eye rotation screen Second Edition seen single side Small crown 8vo stereoscope stereoscopic pictures Third Edition tion torsion turn the eyes visual lines visual result vols
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