Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1897 - 318 páginas |
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Página 11
... seen that the axis of the eye is not coincident with the axis of the socket , and , therefore , the action of the superior rectus by itself is not only to turn the eye upward , but also to turn it inward toward the nose and rotate it on ...
... seen that the axis of the eye is not coincident with the axis of the socket , and , therefore , the action of the superior rectus by itself is not only to turn the eye upward , but also to turn it inward toward the nose and rotate it on ...
Página 22
... seen that the diverging pencils , from points A and B of the object , FIG . 8 . A B DIAGRAM ILLUSTRATING THE FORMATION OF AN IMAGE . - A B , the object ; a b , the image ; rr , retina of the normal eye . which enter the pupil , are ...
... seen that the diverging pencils , from points A and B of the object , FIG . 8 . A B DIAGRAM ILLUSTRATING THE FORMATION OF AN IMAGE . - A B , the object ; a b , the image ; rr , retina of the normal eye . which enter the pupil , are ...
Página 23
... seen in the living eye by means of the ophthalmoscope . By reference to the diagram , Fig . 8 , it is seen that the central rays from all radiants cross each other in the lens . This point of ray - crossing is called the nodal point ...
... seen in the living eye by means of the ophthalmoscope . By reference to the diagram , Fig . 8 , it is seen that the central rays from all radiants cross each other in the lens . This point of ray - crossing is called the nodal point ...
Página 34
... seen to contract to the size of a pinhole . You seem to have exercised voluntary control over the muscles of the iris . But not so . The contraction is purely consensual , with strong convergence of the optic axes . If the other eye ...
... seen to contract to the size of a pinhole . You seem to have exercised voluntary control over the muscles of the iris . But not so . The contraction is purely consensual , with strong convergence of the optic axes . If the other eye ...
Página 35
An Exposition of the Principles of Monocular and Binocular Vision Joseph LeConte. seen to turn strongly inward toward the nose to look at a . 6. Adjustment for Distance - Focal Adjustment Accommodation . - We have seen that a lens ...
An Exposition of the Principles of Monocular and Binocular Vision Joseph LeConte. seen to turn strongly inward toward the nose to look at a . 6. Adjustment for Distance - Focal Adjustment Accommodation . - We have seen that a lens ...
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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