Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
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Página 6
... figures , 68 ; ocular spectra , 69 ; corresponding points , retinal and spatial , 72 ; properties of the central spot , 73 ; function of the central spot , 74 ; mini- mum visible , 76 ; minimum tactile , 77 ; blind spot , 78 ; ex ...
... figures , 68 ; ocular spectra , 69 ; corresponding points , retinal and spatial , 72 ; properties of the central spot , 73 ; function of the central spot , 74 ; mini- mum visible , 76 ; minimum tactile , 77 ; blind spot , 78 ; ex ...
Página 31
... figures are found to be slightly edged with rainbow hues . If we look through such a lens at an object , the outlines of the object will be similarly edged with colors , especially if the object lie near the margin of the field THE EYE ...
... figures are found to be slightly edged with rainbow hues . If we look through such a lens at an object , the outlines of the object will be similarly edged with colors , especially if the object lie near the margin of the field THE EYE ...
Página 68
... Figures . - Stand in a dark room with a lighted candle in hand . Shutting the left , hold the candle very near the right eye , within three or four inches , obliquely outward and forward , so that the light shall strongly illuminate the ...
... Figures . - Stand in a dark room with a lighted candle in hand . Shutting the left , hold the candle very near the right eye , within three or four inches , obliquely outward and forward , so that the light shall strongly illuminate the ...
Página 69
... figures , from the discoverer . Experiment 5. Ocular Spectra . - Look a moment steadily at the setting sun , and then , turning away the eye , look elsewhere — at the sky , the ground , the wall : a vivid colored spectrum of the sun ...
... figures , from the discoverer . Experiment 5. Ocular Spectra . - Look a moment steadily at the setting sun , and then , turning away the eye , look elsewhere — at the sky , the ground , the wall : a vivid colored spectrum of the sun ...
Página 110
... figures the letters are the same . R and L , the two eyes ; A and B , two ob- jects ; a'b , Fig . 35 , and ab ' , Fig . 36 , combined images ; primed letters , left - eye im- ages ; cc , central spots of retina ; n , the nose ; PP ...
... figures the letters are the same . R and L , the two eyes ; A and B , two ob- jects ; a'b , Fig . 35 , and ab ' , Fig . 36 , combined images ; primed letters , left - eye im- ages ; cc , central spots of retina ; n , the nose ; PP ...
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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