Sight: An Exposition of the Principles of Monocular and Binocular Vision |
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Página 67
If we gaze on a white 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 downward . Sometimes they are undulating , transparent tubes , with ...
If we gaze on a white 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 downward . Sometimes they are undulating , transparent tubes , with ...
Página 68
Now move the light about gently , upward , downward , back and forth , while you
gaze intently on the wall opposite . Presently the field of view becomes dark from
the intense impression of the light , and then , as you move the light about ...
Now move the light about gently , upward , downward , back and forth , while you
gaze intently on the wall opposite . Presently the field of view becomes dark from
the intense impression of the light , and then , as you move the light about ...
Página 69
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 ( or many of them , if the eye has not been steady while regarding the sun ) is
...
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 ( or many of them , if the eye has not been steady while regarding the sun ) is
...
Página 70
then quickly turn the eye to the 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
...
then quickly turn the eye to the 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
...
Página 71
on a white 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 a white 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 ...
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Términos y frases comunes
adjustment already angle appear becomes binocular called central spot circle Cloth colors combined complete condition cones convergence corresponding points cross Demy 8vo diagram direction distance distinct double images evident exactly Experiment explained external fact fall farther Fcap field of view figures front hand horizontal horopter Illustrations impression inches inclination increasing Large layer left eye lens less light look median middle motion move muscles natural nearer necessary nerve nose object observer opposite optic optic axes outward parallel passing perception perfect perfectly perspective phenomena plane Poems point of sight position post 8vo price 35 primary produced projection rays referred represent result retina retinal images right eye rotation screen Second Edition seen shown side single Small crown 8vo space stereoscope surface Third tion Translated true turn unite vertical vision visual lines vols wall whole
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Información bibliográfica
| Título | Sight: An Exposition of the Principles of Monocular and Binocular Vision Volumen33 de Internat. sci. series International scientific series |
| Autor | Joseph LeConte |
| Editor | D. Appleton, 1881 |
| Procedencia del original | Universidad de Oxford |
| Digitalizado | 7 Sep. 2006 |
| Largo | 275 páginas |
| Exportar cita | BiBTeX EndNote RefMan |