Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
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Página 13
... and objectiveness . We distinctly perceive the sensation as in the nose , and yet by experience we have learned to refer it to an object at a distance . In hearing , we already refer RELATION OF GENERAL TO SPECIAL SENSE . 13.
... and objectiveness . We distinctly perceive the sensation as in the nose , and yet by experience we have learned to refer it to an object at a distance . In hearing , we already refer RELATION OF GENERAL TO SPECIAL SENSE . 13.
Página 14
Joseph LeConte. at a distance . In hearing , we already refer the cause so completely to a distant object that there is but the smallest possible remnant of a consciousness of sensa- tion in the ear ; the sound does not seem to be in the ...
Joseph LeConte. at a distance . In hearing , we already refer the cause so completely to a distant object that there is but the smallest possible remnant of a consciousness of sensa- tion in the ear ; the sound does not seem to be in the ...
Página 22
... already described . Just before separating from the sclerotic to form the iris , it splits into two layers : one , the anterior , goes to form the iris , as already said , while the other , the posterior , is gathered into a circular ...
... already described . Just before separating from the sclerotic to form the iris , it splits into two layers : one , the anterior , goes to form the iris , as already said , while the other , the posterior , is gathered into a circular ...
Página 28
... already met , crossed , and again diverged . In both cases the image will be blurred . A FIG . 8 . α B DIAGRAM ILLUSTRATING THE FORMATION OF AN IMAGE ON 111E RETINA . In all dioptric instruments images are formed in this way . It is in ...
... already met , crossed , and again diverged . In both cases the image will be blurred . A FIG . 8 . α B DIAGRAM ILLUSTRATING THE FORMATION OF AN IMAGE ON 111E RETINA . In all dioptric instruments images are formed in this way . It is in ...
Página 31
... already been ex- plained ( page 28 ) . It is precisely the same in both cases . But lenses which form a perfect image are very difficult of construction . There are , especially , two main im- perfections which must be corrected , viz ...
... already been ex- plained ( page 28 ) . It is precisely the same in both cases . But lenses which form a perfect image are very difficult of construction . There are , especially , two main im- perfections which must be corrected , viz ...
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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