Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
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Página 9
... surfaces and sense - organs , and inwardly in the nerve - centers , especially the brain . Impressions on their outer extremity are transmitted along the fiber with a velocity of about one hundred feet per second , and determine changes ...
... surfaces and sense - organs , and inwardly in the nerve - centers , especially the brain . Impressions on their outer extremity are transmitted along the fiber with a velocity of about one hundred feet per second , and determine changes ...
Página 17
... surface of the white portion of the ball ( Fig . 2 , a a ) , then passes for- ward again over the ball as far as the clear part , or cornea ( Fig . 2 , c c c ) , and then entirely over this , although very closely attached . If ...
... surface of the white portion of the ball ( Fig . 2 , a a ) , then passes for- ward again over the ball as far as the clear part , or cornea ( Fig . 2 , c c c ) , and then entirely over this , although very closely attached . If ...
Página 23
... surface to center , as shown in Fig . 5 , e , and in Fig . 13 , on page 37. The lens is invested withi a very thin , transparent membrane , capsule of the lens , which not only invests it , but continues outward as a plaited curtain ...
... surface to center , as shown in Fig . 5 , e , and in Fig . 13 , on page 37. The lens is invested withi a very thin , transparent membrane , capsule of the lens , which not only invests it , but continues outward as a plaited curtain ...
Página 25
... surface , will be blurred . If there is no image , no object will be visible . Therefore the image must be a fac- simile of the real object , for the apparent object will be a fac - simile of the image . Conditions of a Perfect Image ...
... surface , will be blurred . If there is no image , no object will be visible . Therefore the image must be a fac- simile of the real object , for the apparent object will be a fac - simile of the image . Conditions of a Perfect Image ...
Página 28
... surface of the object are , as it were , sifted out by the law of refraction , and each safely conveyed to its own point in the image ; so that , for every radiant point of the object , there is a corresponding focal point in the image ...
... surface of the object are , as it were , sifted out by the law of refraction , and each safely conveyed to its own point in the image ; so that , for every radiant point of the object , there is a corresponding focal point in the image ...
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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 cones corresponding points cross depth of space distant objects distinct double images evident exactly Experiment external images eyes by squinting farther fibers field of view figures finger focal adjustment foreground forms of perspective gaze heteronymously homonymously horizontal horopter identical points impression inches inclination interocular space inverted jects left eye lens less convergence light line of sight look median plane monocular images motion muscles naked eyes nearer nose object or scene oblique observer ocular optic axes optic chiasm optic convergence optic nerve outward parallel perceived perception of depth perfect image perfectly point of sight position projection rays refractive represent retina retinal images right and left right eye rotation sclerotic screen seen single side stereoscope stereoscopic pictures surface tion torsion turn the eyes unite visual lines visual result