Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
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Página 45
... half - inch lens , its quarter - inch , its tenth - inch , and even its fiftieth - inch lens . It changes one for another , according to the dis- tance of the object . But the eye changes its one lens , and makes it a five - inch lens ...
... half - inch lens , its quarter - inch , its tenth - inch , and even its fiftieth - inch lens . It changes one for another , according to the dis- tance of the object . But the eye changes its one lens , and makes it a five - inch lens ...
Página 55
... half that amount on the anterior margins ; yet , under the microscope , a section through the thickness shows that it is very complex in its structure , being composed of several very distinct layers . We may first represent it on a ...
... half that amount on the anterior margins ; yet , under the microscope , a section through the thickness shows that it is very complex in its structure , being composed of several very distinct layers . We may first represent it on a ...
Página 73
... half of the retina corresponds with the right half of the field of view , and the right half of the former to the left half of the latter ; and so also the upper half of the former corresponds to the lower half of the latter , and the lower ...
... half of the retina corresponds with the right half of the field of view , and the right half of the former to the left half of the latter ; and so also the upper half of the former corresponds to the lower half of the latter , and the lower ...
Página 84
... half of the retina and are referred downward . Comparison with Other Senses . - There is nothing absolutely peculiar in this ; but only a general property of sense refined to the last degree in the case of sight , owing to the peculiar ...
... half of the retina and are referred downward . Comparison with Other Senses . - There is nothing absolutely peculiar in this ; but only a general property of sense refined to the last degree in the case of sight , owing to the peculiar ...
Página 97
... half of one retina corresponds with the external or temporal half of the other , and vice versa . Or , more accurately , if the concave retinæ be covered with a system of rectangular spherical coördi- nates , like the lines of latitude ...
... half of one retina corresponds with the external or temporal half of the other , and vice versa . Or , more accurately , if the concave retinæ be covered with a system of rectangular spherical coördi- nates , like the lines of latitude ...
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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