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 with a very thin , transparent membrane , capsule of the lens , which not only invests it , but continues outward as a plaited curtain , to ...
... surface to center , as shown in Fig . 5 , e , and in Fig . 13 , on page 37. The lens is invested with a very thin , transparent membrane , capsule of the lens , which not only invests it , but continues outward as a plaited curtain , to ...
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 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