Sight: An Exposition of the Principles of Monocular and Binocular VisionKegan Paul, 1881 - 307 páginas |
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Página 23
... crystalline and slightly flattens it . We shall see the importance of this when we come to speak of the adjustment of the eye for distance . The perfect transparency of the lens is obviously necessary for. GENERAL STRUCTURE OF THE EYE . 23.
... crystalline and slightly flattens it . We shall see the importance of this when we come to speak of the adjustment of the eye for distance . The perfect transparency of the lens is obviously necessary for. GENERAL STRUCTURE OF THE EYE . 23.
Página 35
... distance from the center ; therefore the focal point for marginal rays is not the FIG . 12 . r r α S same as for the central rays , but nearer . In Fig . 12 the marginal rays , a r ' , a r ' , are brought to a focus at a " , while the ...
... distance from the center ; therefore the focal point for marginal rays is not the FIG . 12 . r r α S same as for the central rays , but nearer . In Fig . 12 the marginal rays , a r ' , a r ' , are brought to a focus at a " , while the ...
Página 40
... Distance - Focal Adjustment . -We have seen that a lens , properly corrected for chromatism and aberration , makes a perfect image . But the plate or screen which receives the image and makes it visible must be placed exactly in the ...
... Distance - Focal Adjustment . -We have seen that a lens , properly corrected for chromatism and aberration , makes a perfect image . But the plate or screen which receives the image and makes it visible must be placed exactly in the ...
Página 41
... distances , it would be only necessary to find that place , and fix the receiving plate immovably there . But the place of the image formed by any lens changes with every change in the distance of the object . As the object in front ...
... distances , it would be only necessary to find that place , and fix the receiving plate immovably there . But the place of the image formed by any lens changes with every change in the distance of the object . As the object in front ...
Página 44
... distance . Now there are certain muscular fibers ( ciliary muscle , Fig . 19 , d ) which , aris- ing from the ... distances up to about five * " Optique Physiologique , ” p . 150 . inches . The range of adjustment or of distinct vision ...
... distance . Now there are certain muscular fibers ( ciliary muscle , Fig . 19 , d ) which , aris- ing from the ... distances up to about five * " Optique Physiologique , ” p . 150 . inches . The range of adjustment or of distinct vision ...
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Términos y frases comunes
angle 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 depth of space distant objects distinct double images evident exactly Experiment external images farther Fcap fibers field of view focal adjustment foreground forms of perspective Frontispiece heteronymously horizontal horopter identical points Illustrations impression inches inclination interocular space jects judgments Large post 8vo left eye lens light line of sight look median plane monocular motion muscles naked eyes nearer nose object or scene observer ocular optic axes optic chiasm optic convergence optic nerve outward parallel perception of depth perfectly Poems point of sight position projection represent retina retinal images right and left right eye rotation screen Second Edition seen single side Small crown 8vo stereoscope stereoscopic pictures Third Edition tion torsion turn the eyes visual lines visual result vols
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