Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
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Página 11
... When the vibrations are so rapid that there are sixteen complete movements back and forth in a second , an entirely different sensa- 12 INTRODUCTORY . tion is produced , which we call RELATION OF GENERAL TO SPECIAL SENSE . 11.
... When the vibrations are so rapid that there are sixteen complete movements back and forth in a second , an entirely different sensa- 12 INTRODUCTORY . tion is produced , which we call RELATION OF GENERAL TO SPECIAL SENSE . 11.
Página 35
... 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 eye is not ...
... 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 eye is not ...
Página 36
... complete correction can only be made by increasing the refraction of the central portions of the lens , and this may con- ceivably be accomplished in two ways , viz . , either by increasing the curvature of this part or by increasing ...
... complete correction can only be made by increasing the refraction of the central portions of the lens , and this may con- ceivably be accomplished in two ways , viz . , either by increasing the curvature of this part or by increasing ...
Página 72
... complete rest in the early morning , give rise spontaneously to more definite spectra , often of beautiful colors . I have often , in bed in the morning , watched with eyes shut these splendid spectra , consisting of a colored patch ...
... complete rest in the early morning , give rise spontaneously to more definite spectra , often of beautiful colors . I have often , in bed in the morning , watched with eyes shut these splendid spectra , consisting of a colored patch ...
Página 113
... complete , because of the presence of the accompanying monocular images ; but the forma- tion of these may be prevented by the use of appro- priate screens . Experiment 2. — If in the first experiment with the money , before combining ...
... complete , because of the presence of the accompanying monocular images ; but the forma- tion of these may be prevented by the use of appro- priate screens . Experiment 2. — If in the first experiment with the money , before combining ...
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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