Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1897 - 318 páginas |
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Página xvi
... distinct in the higher animals are represented by an unmodified cellular structure , performing all the func- tions of the animal body , but in an imperfect manner . Each cell in such an organism will feel like a nervous cell , contract ...
... distinct in the higher animals are represented by an unmodified cellular structure , performing all the func- tions of the animal body , but in an imperfect manner . Each cell in such an organism will feel like a nervous cell , contract ...
Página xvi
... distinct fibers of the nerves of feel- ing . Odors and tastes are almost infinite in number , but whether they are perceived each by special fibers , or by different affections of the same fibers , is not known . The following diagram ...
... distinct fibers of the nerves of feel- ing . Odors and tastes are almost infinite in number , but whether they are perceived each by special fibers , or by different affections of the same fibers , is not known . The following diagram ...
Página 7
... distinct what may be called the direct gifts of sight , and what are added by the mind as judgments based upon these gifts . The direct data are only light , its intensity , color , and direction . These are incapable of further ...
... distinct what may be called the direct gifts of sight , and what are added by the mind as judgments based upon these gifts . The direct data are only light , its intensity , color , and direction . These are incapable of further ...
Página 16
... 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 . ( b . ) The ...
... 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 . ( b . ) The ...
Página 17
... distinct portions , viz .: 1 . A nervous expansion , the retina , specialized for re- sponding to light - vibrations ... distinct , the object will be distinct ; if the image is blurred , the object , both in outline and FORMATION OF THE ...
... distinct portions , viz .: 1 . A nervous expansion , the retina , specialized for re- sponding to light - vibrations ... distinct , the object will be distinct ; if the image is blurred , the object , both in outline and FORMATION OF THE ...
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Términos y frases comunes
adjustment angle axis bacillary layer becomes binocular eye binocular perspective binocular vision blind spot camera central spot ciliary muscle circle colors combined image concave corresponding points cross defect depth of space distance distant objects distinct divergence double images evident exactly Experiment explained external images farther fibers field of view focal fore fovea Helmholtz heteronymous homonymous horizontal horopter horopteric line Illustrations impression inches inclined interocular space left eye left-eye image lens light line of sight look median plane middle monocular motion muscles nearer normal eye nose oblique observer ocular optic axes optic chiasm optic nerve optic vesicle outward parallel perceived perception perfectly phantom phenomena point of sight position primary projection pupil ray-line rays refractive represent retina retinal images right and left right eye right-eye image rotation sclerotic screen seen single sensation side stereoscope surface tion torsion turn the eyes vergence vibrations visual lines visual result