Sight: An Exposition of the Principles of Monocular and Binocular VisionKegan Paul, 1881 - 275 páginas |
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Página 25
... exactly proportioned to distinctness of retinal images . If the image of an ob- ject is distinct , the object will be distinct ; if the image is blurred , the object , both in outline and in details of surface , will be blurred . If ...
... exactly proportioned to distinctness of retinal images . If the image of an ob- ject is distinct , the object will be distinct ; if the image is blurred , the object , both in outline and in details of surface , will be blurred . If ...
Página 32
... exactly similar colors . Now all refraction is accompanied by dispersion ; therefore a simple , uncorrected lens always disperses , especially on the edges where the refraction is greatest ; and , therefore , also , the images made by ...
... exactly similar colors . Now all refraction is accompanied by dispersion ; therefore a simple , uncorrected lens always disperses , especially on the edges where the refraction is greatest ; and , therefore , also , the images made by ...
Página 40
... exactly in the right place , i . e . , in the focus ; otherwise the image will be blurred . We reproduce here ( Fig . 16 ) the diagram FIG . 16 . Ъ S S a on page 27 , showing this . It is at once seen that , if the receiving plate is ...
... exactly in the right place , i . e . , in the focus ; otherwise the image will be blurred . We reproduce here ( Fig . 16 ) the diagram FIG . 16 . Ъ S S a on page 27 , showing this . It is at once seen that , if the receiving plate is ...
Página 75
... exactly where the field of view ends , except where it is limited by some portion of the face . Now what is the use of this arrangement ? Why would it not be much better to see equally distinctly over all portions of the field of view ...
... exactly where the field of view ends , except where it is limited by some portion of the face . Now what is the use of this arrangement ? Why would it not be much better to see equally distinctly over all portions of the field of view ...
Página 108
... 10 inches apart , and then the eyes be converged until the right eye looks exactly toward the left hand and the left eye toward the right forefinger , then evidently the retinal images of these two objects will 108 BINOCULAR VISION .
... 10 inches apart , and then the eyes be converged until the right eye looks exactly toward the left hand and the left eye toward the right forefinger , then evidently the retinal images of these two objects will 108 BINOCULAR VISION .
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Términos y frases comunes
angle axis bacillary layer binocular eye binocular perspective binocular vision camera central spot Cheaper Edition ciliary muscle Cloth colors combined images cones corresponding points cross Demy 8vo diagram direction distance distant objects distinct divergence double images evident Experiment external images farther Fcap fibers field of view Frontispiece Helmholtz heteronymous horizontal horopter horopteric line Illustrations impression inches inclination interocular space jects Large post 8vo left eye left-eye image lens light line of sight look median line monocular motion muscles nearer nose observer ocular optic axes optic centers optic chiasm optic nerve outward parallel perception perfectly phenomena plane Poems point of sight Portrait position price 75 Prof projection rays refractive represent retina retinal images right eye rotation sclerotic screen Second Edition seen single Small crown 8vo stereoscope surface T. H. HUXLEY Third Edition tion torsion Translated vertical meridian vibrations visual lines visual result vols
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