Sight: An Exposition of the Principles of Monocular and Binocular VisionKegan Paul, 1881 - 307 páginas |
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Página 42
... increased its axial diameter - in other words , made it egg - shaped - and thus carried the retinal screen farther back from the lens . But now it is known that the retinal screen remains immovable , and the lens changes its form so as ...
... increased its axial diameter - in other words , made it egg - shaped - and thus carried the retinal screen farther back from the lens . But now it is known that the retinal screen remains immovable , and the lens changes its form so as ...
Página 76
... increasing density to the center , is of use to man only as correcting aber- ration , and not in conferring the faculty of periscopism . In the lower animals , however , in which periscopism is so important , this structure of the lens ...
... increasing density to the center , is of use to man only as correcting aber- ration , and not in conferring the faculty of periscopism . In the lower animals , however , in which periscopism is so important , this structure of the lens ...
Página 143
... increasing distance in any direction on the same plane , so clearness and singleness of vision are confined to the distance of the point of sight , and images become dim and double in passing beyond or to this side of that point . Again ...
... increasing distance in any direction on the same plane , so clearness and singleness of vision are confined to the distance of the point of sight , and images become dim and double in passing beyond or to this side of that point . Again ...
Página 171
... not as straight lines , but as hyperbolic curves , increasing in curvature as we go upward or downward . The diagram Fig . 56 shows how the spherical coördinates would project on a vertical wall . By. LAWS OF PARALLEL MOTION . 171.
... not as straight lines , but as hyperbolic curves , increasing in curvature as we go upward or downward . The diagram Fig . 56 shows how the spherical coördinates would project on a vertical wall . By. LAWS OF PARALLEL MOTION . 171.
Página 189
... increased , while in the latter case it would be decreased . Previous Researches on this Subject . - The only writer who has to my knowledge made experiments on rotation of the eyes in convergence is Meissner . * The results he arrives ...
... increased , while in the latter case it would be decreased . Previous Researches on this Subject . - The only writer who has to my knowledge made experiments on rotation of the eyes in convergence is Meissner . * The results he arrives ...
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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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