Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1897 - 318 páginas |
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Página 21
... fall- ing on the lens , are brought to the same point , a ' , and from e to the point c ' , and so also for every intermediate point . Thus an image is formed which is both bright and very distinct if the receiving screen is suitably ...
... fall- ing on the lens , are brought to the same point , a ' , and from e to the point c ' , and so also for every intermediate point . Thus an image is formed which is both bright and very distinct if the receiving screen is suitably ...
Página 25
... fall on the sides will be quenched , and not allowed to rebound by reflection , and thus fall on the image and spoil it . No light must fall on the image except that which comes directly from the object . So the eye also is a very small ...
... fall on the sides will be quenched , and not allowed to rebound by reflection , and thus fall on the image and spoil it . No light must fall on the image except that which comes directly from the object . So the eye also is a very small ...
Página 52
... fall upon and impress the retina . The union of the two optic nerves at the chiasm is undoubtedly connected in some way with the wonderful co - ordinate action of the two eyes in every voluntary act of sight . The thickness of this ...
... fall upon and impress the retina . The union of the two optic nerves at the chiasm is undoubtedly connected in some way with the wonderful co - ordinate action of the two eyes in every voluntary act of sight . The thickness of this ...
Página 77
... fall the image of the object or part of the object looked at , and of all points in the visual line or line of sight . Now , if we look steadily and attentively on any spot on the wall , and , without moving the eyes , observe the ...
... fall the image of the object or part of the object looked at , and of all points in the visual line or line of sight . Now , if we look steadily and attentively on any spot on the wall , and , without moving the eyes , observe the ...
Página 78
... fall on the central spot . Now , the point of sight with a very small area about it corresponds to the central spot , and the margins of the field of view correspond to the extreme forward margin of the retina . Therefore the ...
... fall on the central spot . Now , the point of sight with a very small area about it corresponds to the central spot , and the margins of the field of view correspond to the extreme forward margin of the retina . Therefore 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