Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
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Página 28
... falling on the lens , are brought to the same point , a ' , and from c to the point c ' , and so also for every intermediate point . Thus an image is formed which is both bright and very distinct if the receiving screen is suitably ...
... falling on the lens , are brought to the same point , a ' , and from c to the point c ' , and so also for every intermediate point . Thus an image is formed which is both bright and very distinct if the receiving screen is suitably ...
Página 31
... fall on the sides will be quenched , and not allowed to rebound by reflection , and thus fall on the image and spoil it . No light must fall on the image except that which comes directly from the object . So the eye also is a very small ...
... fall on the sides will be quenched , and not allowed to rebound by reflection , and thus fall on the image and spoil it . No light must fall on the image except that which comes directly from the object . So the eye also is a very small ...
Página 55
... fall upon and impress the retina . The thickness of this nervous expansion is about one hundredth of an inch , or about the thickness of thin cardboard , at the bottom or thickest part , but thins to one half that amount on the anterior ...
... fall upon and impress the retina . The thickness of this nervous expansion is about one hundredth of an inch , or about the thickness of thin cardboard , at the bottom or thickest part , but thins to one half that amount on the anterior ...
Página 74
... fall the image of the object or part of the object looked at , or of all points in the visual line or line of sight . Now , if we look steadily and attentively on any spot on the wall , and , without moving the eyes , observe the ...
... fall the image of the object or part of the object looked at , or of all points in the visual line or line of sight . Now , if we look steadily and attentively on any spot on the wall , and , without moving the eyes , observe the ...
Página 77
... fall on the same retinal cone , they will make but one impression , and therefore be seen as one ; but if they are far enough apart to impress two cones , then they will be seen as two points . So also of an object : if its image on the ...
... fall on the same retinal cone , they will make but one impression , and therefore be seen as one ; but if they are far enough apart to impress two cones , then they will be seen as two points . So also of an object : if its image on the ...
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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