Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
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Página 125
... perspective . In the mean time it must be clearly conceived and held fast ; otherwise all that follows on stereoscopy will be unin- telligible . STEREOSCOPY . We have already seen ( page 96 ) that in binocular vision we see objects ...
... perspective . In the mean time it must be clearly conceived and held fast ; otherwise all that follows on stereoscopy will be unin- telligible . STEREOSCOPY . We have already seen ( page 96 ) that in binocular vision we see objects ...
Página 127
... to test whether stereoscopic pictures are properly mounted or not . Select some point or object in the foreground ; measure accurately with a pair of dividers the distance between it and the same point or BINOCULAR PERSPECTIVE . 127.
... to test whether stereoscopic pictures are properly mounted or not . Select some point or object in the foreground ; measure accurately with a pair of dividers the distance between it and the same point or BINOCULAR PERSPECTIVE . 127.
Página 128
... perspective , and of natural size , and at natural distance . But in thus combining , the eyes are of course looking at a distant object , and con- sequently parallel or nearly so . The eyes are therefore focally adjusted for a distant ...
... perspective , and of natural size , and at natural distance . But in thus combining , the eyes are of course looking at a distant object , and con- sequently parallel or nearly so . The eyes are therefore focally adjusted for a distant ...
Página 129
... inches or a foot long midway between these two figures , * In a subsequent chapter we give the method of determining with accuracy the interocular distance . A and B , and place the nose and middle BINOCULAR PERSPECTIVE . 129.
... inches or a foot long midway between these two figures , * In a subsequent chapter we give the method of determining with accuracy the interocular distance . A and B , and place the nose and middle BINOCULAR PERSPECTIVE . 129.
Página 132
... perspective . The effect is really marvelously beau- tiful . For persons of slightly presbyopic eyes there will be no difficulty in getting the combined image perfectly clear . In normal eyes , as already explained ( page 117 ) , there ...
... perspective . The effect is really marvelously beau- tiful . For persons of slightly presbyopic eyes there will be no difficulty in getting the combined image perfectly clear . In normal eyes , as already explained ( page 117 ) , there ...
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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