Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
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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 27
... seen on the sheet . If we increase the size of the hole , the image will be brighter , but also more blurred . Illustrations . Many simple experiments may be made illustrating this principle . A pinhole in a card will make an inverted ...
... seen on the sheet . If we increase the size of the hole , the image will be brighter , but also more blurred . Illustrations . Many simple experiments may be made illustrating this principle . A pinhole in a card will make an inverted ...
Página 28
... . It is in this way that images are formed in the eye . In Fig . 8 it is seen that the diverging pencils , from points A and B of the object , which. Diagram ILLUSTRATING THE FORMATION OF AN IMAGE ON THE RETINA . 28 MONOCULAR VISION .
... . It is in this way that images are formed in the eye . In Fig . 8 it is seen that the diverging pencils , from points A and B of the object , which. Diagram ILLUSTRATING THE FORMATION OF AN IMAGE ON THE RETINA . 28 MONOCULAR VISION .
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 ...
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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