Sight: An Exposition of the Principles of Monocular and Binocular VisionKegan Paul, 1881 - 275 páginas |
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Resultados 1-5 de 49
Página 7
... PARALLEL MOTION : Listing's law , 164 ; experiments illustrating , 164-172 ; the statement of the laws , 173 ; contrary statement by Helmholtz explained , 175 ; rota- tion on optic axes in parallel motion only apparent , 176 . SECTION ...
... PARALLEL MOTION : Listing's law , 164 ; experiments illustrating , 164-172 ; the statement of the laws , 173 ; contrary statement by Helmholtz explained , 175 ; rota- tion on optic axes in parallel motion only apparent , 176 . SECTION ...
Página 47
... parallel rays in a passive state is on the retina . For all nearer objects , a voluntary effort is necessary to throw the image on the retina , which effort is greater as the object is nearer , until it is limited at the distance of ...
... parallel rays in a passive state is on the retina . For all nearer objects , a voluntary effort is necessary to throw the image on the retina , which effort is greater as the object is nearer , until it is limited at the distance of ...
Página 48
... this is supposed to be a too small refrac- tive power in the same condition . As the myopic eye throws the focus of parallel rays in front of the retina , 9 so it is supposed the presbyopic eye throws the 48 MONOCULAR VISION .
... this is supposed to be a too small refrac- tive power in the same condition . As the myopic eye throws the focus of parallel rays in front of the retina , 9 so it is supposed the presbyopic eye throws the 48 MONOCULAR VISION .
Página 49
... parallel rays behind the retina , because the retina is too near the lens , at S ' S ' , Fig . 7 , page 27. It is further supposed that the change which takes place with age is a flattening , and therefore a loss of refractive power ...
... parallel rays behind the retina , because the retina is too near the lens , at S ' S ' , Fig . 7 , page 27. It is further supposed that the change which takes place with age is a flattening , and therefore a loss of refractive power ...
Página 51
... parallel rays is behind the retina in a passive state of the eye . The hyper- metropic eye when young usually sees well at a distance , but not near at hand , and therefore it is apt to be con- founded with presbyopy . The reason is ...
... parallel rays is behind the retina in a passive state of the eye . The hyper- metropic eye when young usually sees well at a distance , but not near at hand , and therefore it is apt to be con- founded with presbyopy . The reason is ...
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Términos y frases comunes
angle axis 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 diagram direction distance distant objects distinct divergence double images evident Experiment external images farther Fcap fibers field of view Frontispiece Helmholtz heteronymous horizontal horopter horopteric line Illustrations impression inches inclination interocular space jects Large post 8vo left eye left-eye image lens light line of sight look median line monocular motion muscles nearer nose observer ocular optic axes optic centers optic chiasm optic nerve outward parallel perception perfectly phenomena plane Poems point of sight Portrait position price 75 Prof projection rays refractive represent retina retinal images right eye rotation sclerotic screen Second Edition seen single Small crown 8vo stereoscope surface T. H. HUXLEY Third Edition tion torsion Translated vertical meridian vibrations visual lines visual result vols
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