Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
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Página 7
... PARALLEL MOTION : Listing's law , 164 ; experiments illustrating , 164-172 ; the statement of the laws , 173 ; contrary statement by Helmholtz explained , 175 ; rota- tion on optic axes in parallel motion only apparent , 176 . SECTION ...
... PARALLEL MOTION : Listing's law , 164 ; experiments illustrating , 164-172 ; the statement of the laws , 173 ; contrary statement by Helmholtz explained , 175 ; rota- tion on optic axes in parallel motion only apparent , 176 . SECTION ...
Página 40
... already met , crossed , and again spread out . It is evident that there is but , one * Explain here how & focus is diff for divergs rays parallel rays . - * place where the image is perfect , viz . ,. 40 MONOCULAR . VISION .
... already met , crossed , and again spread out . It is evident that there is but , one * Explain here how & focus is diff for divergs rays parallel rays . - * place where the image is perfect , viz . ,. 40 MONOCULAR . VISION .
Página 47
... parallel rays in a passive state is on the retina . For all nearer objects , a voluntary effort is necessary to throw the image on the retina , which effort is greater as the object is nearer , until it is limited at the distance of ...
... parallel rays in a passive state is on the retina . For all nearer objects , a voluntary effort is necessary to throw the image on the retina , which effort is greater as the object is nearer , until it is limited at the distance of ...
Página 48
... this is supposed to be a too small refrac- tive power in the same condition . As the myopic eye throws the focus of parallel rays in front of the retina , so it is supposed the presbyopic eye throws the focus 48 MONOCULAR VISION .
... this is supposed to be a too small refrac- tive power in the same condition . As the myopic eye throws the focus of parallel rays in front of the retina , so it is supposed the presbyopic eye throws the focus 48 MONOCULAR VISION .
Página 49
... parallel rays behind the retina , because the retina is too near the lens , at S ' S ' , Fig . 7 , page 27. It is further supposed that the change which takes place with age is a flattening , and therefore a loss of refractive power ...
... parallel rays behind the retina , because the retina is too near the lens , at S ' S ' , Fig . 7 , page 27. It is further supposed that the change which takes place with age is a flattening , and therefore a loss of refractive power ...
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Términos y frases comunes
angle axis bacillary layer binocular eye binocular perspective binocular vision camera central spot ciliary muscle circle colors combined images cones corresponding points cross depth of space distant objects distinct double images evident exactly Experiment external images eyes by squinting farther fibers field of view figures finger focal adjustment foreground forms of perspective gaze heteronymously homonymously horizontal horopter identical points impression inches inclination interocular space inverted jects left eye lens less convergence light line of sight look median plane monocular images motion muscles naked eyes nearer nose object or scene oblique observer ocular optic axes optic chiasm optic convergence optic nerve outward parallel perceived perception of depth perfect image perfectly point of sight position projection rays refractive represent retina retinal images right and left right eye rotation sclerotic screen seen single side stereoscope stereoscopic pictures surface tion torsion turn the eyes unite visual lines visual result