Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
Dentro del libro
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Página 11
... regarded as the result of refine- ments of common sensation - each a more refined touch . Coarse vibrations are perceived by the nerves of com- mon sensation as a jarring . When the vibrations are so rapid that there are sixteen ...
... regarded as the result of refine- ments of common sensation - each a more refined touch . Coarse vibrations are perceived by the nerves of com- mon sensation as a jarring . When the vibrations are so rapid that there are sixteen ...
Página 24
... regarded as consisting essentially of two distinct portions , viz .: 1 . A nervous expansion , the retina , specialized for respond- ing to light - vibrations ; 2. An optical instrument , the lens apparatus , placed in front of the ...
... regarded as consisting essentially of two distinct portions , viz .: 1 . A nervous expansion , the retina , specialized for respond- ing to light - vibrations ; 2. An optical instrument , the lens apparatus , placed in front of the ...
Página 34
... regarded as a refracting surface , since this is in direct contact with the screen to be impressed , it may be con- sidered as a plano - concave lens . The refractive powers of the material of these are also different : that of the ...
... regarded as a refracting surface , since this is in direct contact with the screen to be impressed , it may be con- sidered as a plano - concave lens . The refractive powers of the material of these are also different : that of the ...
Página 36
... regarded as consisting of ideal concentric layers , increasing in density and curvature until the central nucleus is a very dense and highly refractive FIG . 13 . spherule ( Fig . 13 ) 36 MONOCULAR VISION . Comparison with the camera ...
... regarded as consisting of ideal concentric layers , increasing in density and curvature until the central nucleus is a very dense and highly refractive FIG . 13 . spherule ( Fig . 13 ) 36 MONOCULAR VISION . Comparison with the camera ...
Página 46
... regarded as the result of imperfect work on the part of Nature , but rather as the effects of misuse of the eye , accumulated by inheritance for many generations . They do not occur in animals , nor in the same degree in savage races ...
... regarded as the result of imperfect work on the part of Nature , but rather as the effects of misuse of the eye , accumulated by inheritance for many generations . They do not occur in animals , nor in the same degree in savage races ...
Términos y frases comunes
angle animals axis bacillary layer binocular eye binocular perspective binocular vision camera central spot ciliary muscle circle Cloth colors combined images cones 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 left eye left-eye image lens light line of sight look median line monocular motion muscles naked eyes natural 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 ray-lines rays refractive represent retina retinal images right and left right eye rotation sclerotic screen seen single shut side Sociology stereoscope surface T. H. HUXLEY tion torsion vertical meridian vibrations visual lines visual result vols
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