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 ; c c , 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 ; c c , 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 cornea 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 law of corresponding left eye left-eye image lens light line of sight look median line middle monocular motion muscles naked eyes 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 pupil ray-lines rays refractive represent retina retinal images right and left right eye right-eye image rotation sclerotic screen seen single shut side stereoscope surface tion torsion turn the eyes vergence vertical meridian vibrations visual lines visual result