Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
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Página 19
... evident that its function is to turn the eye out ward and downward , and at the same time to rotate it on its axis inward , i . e . , sinistrally for the right eye and dextrally for the left . The inferior oblique ( Fig . 3 , d ) rises ...
... evident that its function is to turn the eye out ward and downward , and at the same time to rotate it on its axis inward , i . e . , sinistrally for the right eye and dextrally for the left . The inferior oblique ( Fig . 3 , d ) rises ...
Página 30
... evident : such , e . g . , as the admirable arrange- ment of the lids for wiping and keeping bright while using , and for covering when not in use ; also , the ad- mirable arrangement of muscles , by which the eye is turned with the ...
... evident : such , e . g . , as the admirable arrange- ment of the lids for wiping and keeping bright while using , and for covering when not in use ; also , the ad- mirable arrangement of muscles , by which the eye is turned with the ...
Página 34
... evident that these may be so related that the plano - concave lens shall entirely correct the dispersion of the convex lens without neu- tralizing its refraction , and therefore the combination will be a refractive , but not a ...
... evident that these may be so related that the plano - concave lens shall entirely correct the dispersion of the convex lens without neu- tralizing its refraction , and therefore the combination will be a refractive , but not a ...
Página 40
... the lens , at S " S " , then the rays moving in straight lines will have already met , crossed , and again spread out . It is evident that there is but one place where the image is perfect , viz . ,. 40 MONOCULAR VISION .
... the lens , at S " S " , then the rays moving in straight lines will have already met , crossed , and again spread out . It is evident that there is but one place where the image is perfect , viz . ,. 40 MONOCULAR VISION .
Página 48
... evident , then , that , the defect of the myopic eye being too great refractive power of the lens in a passive state , this defect may be remedied by the use of concave glasses , with concavity just sufficient to correct the excess of ...
... evident , then , that , the defect of the myopic eye being too great refractive power of the lens in a passive state , this defect may be remedied by the use of concave glasses , with concavity just sufficient to correct the excess of ...
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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