Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1897 - 318 páginas |
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Página 17
... objects is exactly proportioned to distinctness of retinal images . If the image of an ob- ject is distinct , the object will be distinct ; if the image is blurred , the object , both in outline and FORMATION OF THE IMAGE . 17.
... objects is exactly proportioned to distinctness of retinal images . If the image of an ob- ject is distinct , the object will be distinct ; if the image is blurred , the object , both in outline and FORMATION OF THE IMAGE . 17.
Página 21
... exactly at the focal point . 3. The size of the image will be to the size of the object as their relative distances from the nodal point . 4. As the object moves farther away , the image comes nearer to the lens and becomes smaller ...
... exactly at the focal point . 3. The size of the image will be to the size of the object as their relative distances from the nodal point . 4. As the object moves farther away , the image comes nearer to the lens and becomes smaller ...
Página 26
... exactly similar colors . Now all refraction is accompanied by dispersion ; therefore a simple , uncorrected lens always disperses , especially on the edges where the refraction is greatest ; and , therefore , also , the images made by ...
... exactly similar colors . Now all refraction is accompanied by dispersion ; therefore a simple , uncorrected lens always disperses , especially on the edges where the refraction is greatest ; and , therefore , also , the images made by ...
Página 35
... exactly in Ъ FIG . 17 . L S S a the right place - i . e . , in the focus - otherwise the image will be blurred . We reproduce here ( Fig . 17 ) the dia- gram on page 21 , showing this . It is at once seen that , if the receiving plate ...
... exactly in Ъ FIG . 17 . L S S a the right place - i . e . , in the focus - otherwise the image will be blurred . We reproduce here ( Fig . 17 ) the dia- gram on page 21 , showing this . It is at once seen that , if the receiving plate ...
Página 67
... exactly , or nearly exactly , defined as follows : We have seen that the central ray of each radiant passes straight through the nodal point of the lens with- out deviation to the retina . Neglecting all other rays as not concerning us ...
... exactly , or nearly exactly , defined as follows : We have seen that the central ray of each radiant passes straight through the nodal point of the lens with- out deviation to the retina . Neglecting all other rays as not concerning us ...
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Términos y frases comunes
adjustment angle axis bacillary layer becomes binocular eye binocular perspective binocular vision blind spot camera central spot ciliary muscle circle colors combined image concave corresponding points cross defect depth of space distance distant objects distinct divergence double images evident exactly Experiment explained external images farther fibers field of view focal fore fovea Helmholtz heteronymous homonymous horizontal horopter horopteric line Illustrations impression inches inclined interocular space left eye left-eye image lens light line of sight look median plane middle monocular motion muscles nearer normal eye nose oblique observer ocular optic axes optic chiasm optic nerve optic vesicle outward parallel perceived perception perfectly phantom phenomena point of sight position primary projection pupil ray-line rays refractive represent retina retinal images right and left right eye right-eye image rotation sclerotic screen seen single sensation side stereoscope surface tion torsion turn the eyes vergence vibrations visual lines visual result