Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
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Página 13
... shown in a different way . In touch we require direct and usually solid contact ; in taste , liquid contact , for unless a body is soluble it can not be tasted ; in smell , the contact is gaseous , for unless a body is volatile or ...
... shown in a different way . In touch we require direct and usually solid contact ; in taste , liquid contact , for unless a body is soluble it can not be tasted ; in smell , the contact is gaseous , for unless a body is volatile or ...
Página 23
... shown in Fig . 5 , e , and in Fig . 13 , on page 37. The lens is invested with a very thin , transparent membrane , capsule of the lens , which not only invests it , but continues outward as a plaited curtain , to be attached to the ...
... shown in Fig . 5 , e , and in Fig . 13 , on page 37. The lens is invested with a very thin , transparent membrane , capsule of the lens , which not only invests it , but continues outward as a plaited curtain , to be attached to the ...
Página 35
... shown by the complete absence of colored edges of strongly illuminated objects , and the sharp definition of objects seen by good eyes . By close observation and refined methods , it has been recently shown that the chromatism of the ...
... shown by the complete absence of colored edges of strongly illuminated objects , and the sharp definition of objects seen by good eyes . By close observation and refined methods , it has been recently shown that the chromatism of the ...
Página 37
... shown that , in a homogeneous lens , while the rays from radiants near the middle of the field of view , i . e . , nearly directly in front , are brought to a perfect focus , the rays from radiants situ- ated near the margins of the ...
... shown that , in a homogeneous lens , while the rays from radiants near the middle of the field of view , i . e . , nearly directly in front , are brought to a perfect focus , the rays from radiants situ- ated near the margins of the ...
Página 59
... shown in Fig . 21 , page 55 , the bacillary layer is necessarily wanting , and it is the only spot in which this is the case . Now , this spot is blind ( see page 78 ) . Again , just in the axis of the globe , or what might be called ...
... shown in Fig . 21 , page 55 , the bacillary layer is necessarily wanting , and it is the only spot in which this is the case . Now , this spot is blind ( see page 78 ) . Again , just in the axis of the globe , or what might be called ...
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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