Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
Dentro del libro
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Página 30
... move- ment of the camera for the same purpose . We pass over these and many other minor points to come at once to the main points of comparison . Take , then , the eye out of the socket - the dead eye- and the camera without its ...
... move- ment of the camera for the same purpose . We pass over these and many other minor points to come at once to the main points of comparison . Take , then , the eye out of the socket - the dead eye- and the camera without its ...
Página 38
... ; but the margin of the circular hole , or pupil , is free to move . The disk itself is composed of two sets of contractile fibers , viz . , the radiating and the circular ( Fig . 15 ) . The radiating fibers. 38 MONOCULAR VISION .
... ; but the margin of the circular hole , or pupil , is free to move . The disk itself is composed of two sets of contractile fibers , viz . , the radiating and the circular ( Fig . 15 ) . The radiating fibers. 38 MONOCULAR VISION .
Página 40
... move away from the center and make the hole larger . This is confessedly a beautiful contrivance , but how inferior ... moving in straight lines will have already met , crossed , and again spread out . It is evident that there is but one ...
... move away from the center and make the hole larger . This is confessedly a beautiful contrivance , but how inferior ... moving in straight lines will have already met , crossed , and again spread out . It is evident that there is but one ...
Página 67
... moves also , but retains its opposite position in the field of view . In this familiar experiment the pressure indents the sclerotic and causes a change or irritation on the forward portion of the retina ; and any change whatever on the ...
... moves also , but retains its opposite position in the field of view . In this familiar experiment the pressure indents the sclerotic and causes a change or irritation on the forward portion of the retina ; and any change whatever on the ...
Página 68
... move the light about gently , upward , downward , back FIG . 24 . and forth , while you gaze in- tently on the wall opposite . Presently the field of view be- comes dark from the intense impression of the light , and then , as you move ...
... move the light about gently , upward , downward , back FIG . 24 . and forth , while you gaze in- tently on the wall opposite . Presently the field of view be- comes dark from the intense impression of the light , and then , as you move ...
Términos y frases comunes
angle animals axis bacillary layer binocular eye binocular perspective binocular vision camera central spot ciliary muscle circle Cloth colors combined images cones 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 left eye left-eye image lens light line of sight look median line monocular motion muscles naked eyes natural 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 ray-lines rays refractive represent retina retinal images right and left right eye rotation sclerotic screen seen single shut side Sociology stereoscope surface T. H. HUXLEY tion torsion vertical meridian vibrations visual lines visual result vols
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