Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
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Página 9
... necessary for the complex relations of the higher ani- mals , sensory nerve - fibers are differentiated into several kinds , so that each may give clear knowledge of differ- ent properties . Thus , for example , the first R.E.83 Univ ...
... necessary for the complex relations of the higher ani- mals , sensory nerve - fibers are differentiated into several kinds , so that each may give clear knowledge of differ- ent properties . Thus , for example , the first R.E.83 Univ ...
Página 13
... necessary , found only in the optic nerve . Above the number just given , ethereal vibrations are perceived as different colors , in the order seen in the spectrum , until 831,000,000,000 , - 000 is reached . Beyond this we have no ...
... necessary , found only in the optic nerve . Above the number just given , ethereal vibrations are perceived as different colors , in the order seen in the spectrum , until 831,000,000,000 , - 000 is reached . Beyond this we have no ...
Página 23
... and slightly flattens it . We shall see the importance of this when we come to speak of the adjustment of the eye for distance . The perfect transparency of the lens is obviously necessary for. 2 GENERAL STRUCTURE OF THE EYE . 23.
... and slightly flattens it . We shall see the importance of this when we come to speak of the adjustment of the eye for distance . The perfect transparency of the lens is obviously necessary for. 2 GENERAL STRUCTURE OF THE EYE . 23.
Página 24
... necessary for distinct vision ; cataract , a common cause of blindness , arises from its opacity . The lens , with its continuing curtain , completely divides the interior of the ball into two compartments , an anterior and a posterior ...
... necessary for distinct vision ; cataract , a common cause of blindness , arises from its opacity . The lens , with its continuing curtain , completely divides the interior of the ball into two compartments , an anterior and a posterior ...
Página 25
... necessary that rays from different points in the object , even the most contiguous , should not mix on the image , but all the rays from each point on the object must be carried to its own point on the image . Now , it is im- possible ...
... necessary that rays from different points in the object , even the most contiguous , should not mix on the image , but all the rays from each point on the object must be carried to its own point on the image . Now , it is im- possible ...
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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