Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
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Página 7
... plane , 188 ; experiments illustrating , 188 ; cause of the rotation , 189 ; laws of parallel and convergent motion contrasted , 189 . 145 156 164 CHAPTER II . THE HOROPTER • • Defined , 192 ANALYTICAL TABLE OF CONTENTS . 7.
... plane , 188 ; experiments illustrating , 188 ; cause of the rotation , 189 ; laws of parallel and convergent motion contrasted , 189 . 145 156 164 CHAPTER II . THE HOROPTER • • Defined , 192 ANALYTICAL TABLE OF CONTENTS . 7.
Página 43
... lens is divided by a plane through the center . The right side , N , is adapted to near objects ; the left , F , to distant objects . Theory of Adjustment . Thus much may be con- sidered. THE EYE AS AN OPTICAL INSTRUMENT . 43.
... lens is divided by a plane through the center . The right side , N , is adapted to near objects ; the left , F , to distant objects . Theory of Adjustment . Thus much may be con- sidered. THE EYE AS AN OPTICAL INSTRUMENT . 43.
Página 52
... plane will be equal . This is necessary to bring all rays to a perfect point at the same distance . But eyes are found in which the horizontal curvature of the cornea or of the crys- talline , or both , is different from the vertical ...
... plane will be equal . This is necessary to bring all rays to a perfect point at the same distance . But eyes are found in which the horizontal curvature of the cornea or of the crys- talline , or both , is different from the vertical ...
Página 92
... plane surface , they are un- limited in these directions . This is the necessary result of the fact that in a horizontal direction the field of view of both eyes is more than 180 ° . Now , there being two retinæ , there are of course ...
... plane surface , they are un- limited in these directions . This is the necessary result of the fact that in a horizontal direction the field of view of both eyes is more than 180 ° . Now , there being two retinæ , there are of course ...
Página 94
... plane of the head ( i . e . , the vertical plane through the nose , and dividing the head into two symmetrical halves ) , and separated by a considerable distance - say one 8 inches and the other 18 to 20 inches from the eyes . Now , if ...
... plane of the head ( i . e . , the vertical plane through the nose , and dividing the head into two symmetrical halves ) , and separated by a considerable distance - say one 8 inches and the other 18 to 20 inches from the eyes . Now , if ...
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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