Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
Dentro del libro
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Página 67
... wall or ceiling , or , still better , on a bright sky , we see indistinct motes floating about in the field of view on the wall or sky , and slowly gravitating down- ward . Sometimes they are undulating , transparent tubes , with ...
... wall or ceiling , or , still better , on a bright sky , we see indistinct motes floating about in the field of view on the wall or sky , and slowly gravitating down- ward . Sometimes they are undulating , transparent tubes , with ...
Página 68
... wall opposite . Presently the field of view be- comes dark from the intense impression of the light , and then , as you move the light about , there appears projected on the wall and covering its whole surface a shadowy , ghost- like ...
... wall opposite . Presently the field of view be- comes dark from the intense impression of the light , and then , as you move the light about , there appears projected on the wall and covering its whole surface a shadowy , ghost- like ...
Página 69
... wall : a vivid colored spectrum of the sun ( or many of them , if the eye has not been steady while regarding the sun ) is projected into the field of view , and follows all the motions of the eye . This spectrum , on a bright ground ...
... wall : a vivid colored spectrum of the sun ( or many of them , if the eye has not been steady while regarding the sun ) is projected into the field of view , and follows all the motions of the eye . This spectrum , on a bright ground ...
Página 70
... wall , we will see a faint spectrum of the window with all its bars projected against the wall . If we look intently and steadily at any object strongly differentiated from the rest of the wall of a room , as a small picture - frame or ...
... wall , we will see a faint spectrum of the window with all its bars projected against the wall . If we look intently and steadily at any object strongly differentiated from the rest of the wall of a room , as a small picture - frame or ...
Página 71
... wall . The whole pattern of the window will be distinctly seen in complementary colors . Let it be observed here how differently spectral images behave from objects . When we move the eyes about , the images of objects move about on the ...
... wall . The whole pattern of the window will be distinctly seen in complementary colors . Let it be observed here how differently spectral images behave from objects . When we move the eyes about , the images of objects move about on the ...
Otras ediciones - Ver todas
Sight: An Exposition of the Principles of Moonocular and Binocular Vision Joseph Le Conte Sin vista previa disponible - 2017 |
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