Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
Dentro del libro
Resultados 1-5 de 88
Página 18
... left , if we are speaking of the right eye . This is their action expressed generally ; but , by refer- ence to Fig . 20 , on page 54 , it is seen that the axis of the eye is not coincident with the axis of the. 18 MONOCULAR VISION .
... left , if we are speaking of the right eye . This is their action expressed generally ; but , by refer- ence to Fig . 20 , on page 54 , it is seen that the axis of the eye is not coincident with the axis of the. 18 MONOCULAR VISION .
Página 26
... seen that rays from widely different points in the object mix with each other on the receiv- ing screen ; much more , then , would rays from contigu ous points of the object mix . In such a case , the mixing is so great that no ...
... seen that rays from widely different points in the object mix with each other on the receiv- ing screen ; much more , then , would rays from contigu ous points of the object mix . In such a case , the mixing is so great that no ...
Página 29
... seen in the living eye by means of the ophthalmoscope . By reference to the diagram , Fig . 8 , it is seen that the central rays from all radiants cross each other in the lens . This point of ray - crossing is called the nodal point ...
... seen in the living eye by means of the ophthalmoscope . By reference to the diagram , Fig . 8 , it is seen that the central rays from all radiants cross each other in the lens . This point of ray - crossing is called the nodal point ...
Página 40
... seen that a lens , properly corrected for chromatism and aberration , makes a perfect image . But the plate or screen which receives the image and makes it visible must be placed exactly in the right place , i . e . , in the focus ...
... seen that a lens , properly corrected for chromatism and aberration , makes a perfect image . But the plate or screen which receives the image and makes it visible must be placed exactly in the right place , i . e . , in the focus ...
Página 51
... distant objects can not be seen distinctly . Such persons , therefore , while young , should habitually wear slightly convex glasses , which make their eyes normal . When they grow old DEFECTS OF THE EYE AS AN INSTRUMENT . 51.
... distant objects can not be seen distinctly . Such persons , therefore , while young , should habitually wear slightly convex glasses , which make their eyes normal . When they grow old DEFECTS OF THE EYE AS AN INSTRUMENT . 51.
Términos y frases comunes
angle animals axis bacillary layer binocular eye binocular perspective binocular vision camera central spot ciliary muscle circle Cloth colors combined images cones 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 left eye left-eye image lens light line of sight look median line monocular motion muscles naked eyes natural 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 ray-lines rays refractive represent retina retinal images right and left right eye rotation sclerotic screen seen single shut side Sociology stereoscope surface T. H. HUXLEY tion torsion vertical meridian vibrations visual lines visual result vols
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