Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
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Página 7
... MOTION CHAPTER I. SECTION 1. - LAWS OF PARALLEL MOTION : Listing's law , 164 ; experiments illustrating , 164-172 ; the statement of the laws , 173 ; contrary statement by Helmholtz explained , 175 ; rota- tion on optic axes in parallel ...
... MOTION CHAPTER I. SECTION 1. - LAWS OF PARALLEL MOTION : Listing's law , 164 ; experiments illustrating , 164-172 ; the statement of the laws , 173 ; contrary statement by Helmholtz explained , 175 ; rota- tion on optic axes in parallel ...
Página 20
... motions , so far from subserving any useful purpose , would only confuse us with double images , as will be explained hereafter , and therefore have never been learned . Malpositions of the eye , such as squinting , are the result of ...
... motions , so far from subserving any useful purpose , would only confuse us with double images , as will be explained hereafter , and therefore have never been learned . Malpositions of the eye , such as squinting , are the result of ...
Página 69
... motions of the eye . This spectrum , on a bright ground , like the sky , to my eye is first green , then blue , then purple , and so gradually fades away . The spectrum is equally seen when the eye is shut ; but then , being pro- jected ...
... motions of the eye . This spectrum , on a bright ground , like the sky , to my eye is first green , then blue , then purple , and so gradually fades away . The spectrum is equally seen when the eye is shut ; but then , being pro- jected ...
Página 70
... motions . This experiment succeeds best when we are just waked up in the morning , and while the retina is still sensitive from long rest . The experiment may be varied thus : Lay a small patch of vermilion red - such as a red wafer ...
... motions . This experiment succeeds best when we are just waked up in the morning , and while the retina is still sensitive from long rest . The experiment may be varied thus : Lay a small patch of vermilion red - such as a red wafer ...
Página 71
... motions of the eye . We are now prepared to generalize from these ob- servations . It is evident that what we call the field of view is naught else than the external projection into space of retinal states . All variations of state of ...
... motions of the eye . We are now prepared to generalize from these ob- servations . It is evident that what we call the field of view is naught else than the external projection into space of retinal states . All variations of state of ...
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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 cornea corresponding points cross depth of space distance distant objects distinct divergence double images evident exactly Experiment external images farther fibers field of view gaze Helmholtz heteronymous homonymous horizontal horopter horopteric line identical points Illustrations impression inches inclination interocular space inverted jects law of corresponding left eye left-eye image lens light line of sight look median line middle monocular motion muscles naked eyes nearer nose oblique observer ocular optic axes optic centers optic chiasm optic convergence optic nerve outward parallel perceived perception perfect image perfectly point of sight position projection pupil ray-lines rays refractive represent retina retinal images right and left right eye right-eye image rotation sclerotic screen seen single shut side stereoscope surface tion torsion turn the eyes vergence vertical meridian vibrations visual lines visual result