Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1897 - 318 páginas |
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Página 17
... unite to form this wonderful organ . Now the sole object of this complex instrument is the formation of a perfect image on the retina . With- out images we would perceive light , but not objects ; and distinctness of objects is exactly ...
... unite to form this wonderful organ . Now the sole object of this complex instrument is the formation of a perfect image on the retina . With- out images we would perceive light , but not objects ; and distinctness of objects is exactly ...
Página 51
... unite , and partially cross their fibers at the optic chiasm , ch ; then , again diverging , enter the conical eye - sockets a lit- tle to the interior of their points ; then pass through the midst of the fatty cushion behind the eye ...
... unite , and partially cross their fibers at the optic chiasm , ch ; then , again diverging , enter the conical eye - sockets a lit- tle to the interior of their points ; then pass through the midst of the fatty cushion behind the eye ...
Página 120
... unite to form one fiber , or at least terminate centrally in one brain - cell , and thus form one single sense - impres- sion . It is almost needless to say that , while this is an interesting speculation , it is nothing more ; for the ...
... unite to form one fiber , or at least terminate centrally in one brain - cell , and thus form one single sense - impres- sion . It is almost needless to say that , while this is an interesting speculation , it is nothing more ; for the ...
Página 126
... unite to form what seems to be one finger . There will be therefore apparently three images : the middle one ( the combined images ) is opaque like an object ; the other two , uncombined , are transparent like ordinary double images ...
... unite to form what seems to be one finger . There will be therefore apparently three images : the middle one ( the combined images ) is opaque like an object ; the other two , uncombined , are transparent like ordinary double images ...
Página 132
... unite completely and only one hole will be seen in the middle , through which both eyes seem to look . ( b ) Spectacles when on the nose are a good illustration . There are two circles , one seen by each eye and hidden from the other ...
... unite completely and only one hole will be seen in the middle , through which both eyes seem to look . ( b ) Spectacles when on the nose are a good illustration . There are two circles , one seen by each eye and hidden from the other ...
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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