Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
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Página 8
... vertical meridian , 197 ; experiments testing its truth , 198 ; adverse conclusion reached , 201 ; Meissner's results , experiments proving , 203 ; my results confirm Meissner's , 206 ; experiments proving , 206-210 ; conclusions in ...
... vertical meridian , 197 ; experiments testing its truth , 198 ; adverse conclusion reached , 201 ; Meissner's results , experiments proving , 203 ; my results confirm Meissner's , 206 ; experiments proving , 206-210 ; conclusions in ...
Página 52
... vertical plane will be equal . This is necessary to bring all rays to a perfect point at the same distance . But eyes are found in which the horizontal curvature of the cornea or of the crys- talline , or both , is different from the ...
... vertical plane will be equal . This is necessary to bring all rays to a perfect point at the same distance . But eyes are found in which the horizontal curvature of the cornea or of the crys- talline , or both , is different from the ...
Página 88
... vertically and convex horizontally . Now the rays from the light ( L , Fig . 27 ) which penetrate the center of the pupil will pass directly on without refrac- tion except what is normal , and make its image ( Fig . FIG . 28 . a L 28 ...
... vertically and convex horizontally . Now the rays from the light ( L , Fig . 27 ) which penetrate the center of the pupil will pass directly on without refrac- tion except what is normal , and make its image ( Fig . FIG . 28 . a L 28 ...
Página 94
... vertical plane through the nose , and dividing the head into two symmetrical halves ) , and separated by a considerable distance - say one 8 inches and the other 18 to 20 inches from the eyes . Now , if we look at the farther finger ...
... vertical plane through the nose , and dividing the head into two symmetrical halves ) , and separated by a considerable distance - say one 8 inches and the other 18 to 20 inches from the eyes . Now , if we look at the farther finger ...
Página 96
... vertical lines ( vertical meridians ) , a b , a ' b ' , through the central spots , so as to divide the retinæ into two equal halves , then the right halves would correspond point for point , and the left halves would correspond point ...
... vertical lines ( vertical meridians ) , a b , a ' b ' , through the central spots , so as to divide the retinæ into two equal halves , then the right halves would correspond point for point , and the left halves would correspond point ...
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Términos y frases comunes
angle axis bacillary layer binocular eye binocular perspective binocular vision camera central spot ciliary muscle circle colors combined images cornea corresponding points cross depth of space distance distant objects distinct divergence double images evident exactly Experiment external images farther fibers field of view gaze Helmholtz heteronymous homonymous horizontal horopter horopteric line identical points Illustrations impression inches inclination interocular space inverted jects law of corresponding left eye left-eye image lens light line of sight look median line middle monocular motion muscles naked eyes nearer nose oblique observer ocular optic axes optic centers optic chiasm optic convergence optic nerve outward parallel perceived perception perfect image perfectly point of sight position projection pupil ray-lines rays refractive represent retina retinal images right and left right eye right-eye image rotation sclerotic screen seen single shut side stereoscope surface tion torsion turn the eyes vergence vertical meridian vibrations visual lines visual result