Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
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Página 29
... all radiants cross each other in the lens . This point of ray - crossing is called the nodal point . It is a little behind the center of the lens . CHAPTER II . THE EYE AS AN OPTICAL INSTRUMENT . FORMATION OF THE IMAGE . 29.
... all radiants cross each other in the lens . This point of ray - crossing is called the nodal point . It is a little behind the center of the lens . CHAPTER II . THE EYE AS AN OPTICAL INSTRUMENT . FORMATION OF THE IMAGE . 29.
Página 54
... cross their fibers at the optic chiasm , ch ; then , again diverging , enter the conical eye - sockets a little to the interior of the point ; then pass through the midst of the fatty cushion behind the eye , surrounded FIG . 20 . n ch ...
... cross their fibers at the optic chiasm , ch ; then , again diverging , enter the conical eye - sockets a little to the interior of the point ; then pass through the midst of the fatty cushion behind the eye , surrounded FIG . 20 . n ch ...
Página 72
... Moreover , since the central ray of the pencil of every radiant point in the external world passes through the nodal point of the crystalline lens , it is evident that these lines must cross each other 72 MONOCULAR VISION .
... Moreover , since the central ray of the pencil of every radiant point in the external world passes through the nodal point of the crystalline lens , it is evident that these lines must cross each other 72 MONOCULAR VISION .
Página 73
... cross each other there . In other words , the lines forming correspondent points in space and on the retina cross each other in the nodal point , and therefore the positions of these correspondent points , external and internal , are ...
... cross each other there . In other words , the lines forming correspondent points in space and on the retina cross each other in the nodal point , and therefore the positions of these correspondent points , external and internal , are ...
Página 79
... crosses over the blind spot to the other side , when the object immedi- ately reappears . The accompanying diagram , Fig . 25 , illustrates this phe- nomenon . Let A and B rep- resent the two objects , and R and I the positions of the ...
... crosses over the blind spot to the other side , when the object immedi- ately reappears . The accompanying diagram , Fig . 25 , illustrates this phe- nomenon . Let A and B rep- resent the two objects , and R and I the positions of 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 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