Sight: An Exposition of the Principles of Monocular and Binocular VisionKegan Paul, 1881 - 275 páginas |
Dentro del libro
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Página 14
... increasing specialization and refinement of the senses . But only in the two higher senses - only in those senses in which there is no direct contact , but the impressing force is conveyed by means of vibration through a medium - only ...
... increasing specialization and refinement of the senses . But only in the two higher senses - only in those senses in which there is no direct contact , but the impressing force is conveyed by means of vibration through a medium - only ...
Página 23
... increasing in density from surface to center , as shown in Fig . 5 , e , and in Fig . 13 , on page 37. The lens is invested with a very thin , transparent membrane , capsule of the lens , which not only invests it , but continues ...
... increasing in density from surface to center , as shown in Fig . 5 , e , and in Fig . 13 , on page 37. The lens is invested with a very thin , transparent membrane , capsule of the lens , which not only invests it , but continues ...
Página 26
... is now infinitely faint , and therefore invisible . If , now , we try to increase the brightness by increasing the size of the hole , in propor- tion as we get brightness do we lose distinctness . 26 MONOCULAR VISION .
... is now infinitely faint , and therefore invisible . If , now , we try to increase the brightness by increasing the size of the hole , in propor- tion as we get brightness do we lose distinctness . 26 MONOCULAR VISION .
Página 35
... increasing with 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 ...
... increasing with 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 ...
Página 36
... increasing the curvature of this part or by increasing its density , and therefore its refractive index . It is by the former method that art makes the correction . By mathematical calculation , it is found that the curve must be that ...
... increasing the curvature of this part or by increasing its density , and therefore its refractive index . It is by the former method that art makes the correction . By mathematical calculation , it is found that the curve must be that ...
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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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