Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1897 - 318 páginas |
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Página 19
... becomes smaller , the circles of dis- persion , a ' b ' c ' , become smaller in the same proportion ; and , therefore , the light from different points of the object is more and more separated on the receiving FIG . 6 . a b CL d B b S A ...
... becomes smaller , the circles of dis- persion , a ' b ' c ' , become smaller in the same proportion ; and , therefore , the light from different points of the object is more and more separated on the receiving FIG . 6 . a b CL d B b S A ...
Página 21
... point . 4. As the object moves farther away , the image comes nearer to the lens and becomes smaller . DIAGRAM SHOWING THE FORMATION OF A LENS IMAGE . DIAGRAM SHOWING THE FORMATION OF A LENS IMAGE . FORMATION OF THE IMAGE . 21.
... point . 4. As the object moves farther away , the image comes nearer to the lens and becomes smaller . DIAGRAM SHOWING THE FORMATION OF A LENS IMAGE . DIAGRAM SHOWING THE FORMATION OF A LENS IMAGE . FORMATION OF THE IMAGE . 21.
Página 22
... becomes smaller . 5 . It is not every lens that will make a perfect image . The lens must be of suitable shape . Application to the Eye . - In all dioptric instruments images are formed in this way . It is in this way that images are ...
... becomes smaller . 5 . It is not every lens that will make a perfect image . The lens must be of suitable shape . Application to the Eye . - In all dioptric instruments images are formed in this way . It is in this way that images are ...
Página 26
... become a cd ; this is called refraction . But also the different colors are unequally bent ; red is bent least and violet most , the other colors lying between these extremes ; thus they are spread out over a considerable colored space ...
... become a cd ; this is called refraction . But also the different colors are unequally bent ; red is bent least and violet most , the other colors lying between these extremes ; thus they are spread out over a considerable colored space ...
Página 33
... becomes small , and a large portion of the light is shut out . When the light diminishes , as in twilight , the circular fibers relax , the previously stretched radi- ating fibers contract by elasticity , and enlarge the pupil . At ...
... becomes small , and a large portion of the light is shut out . When the light diminishes , as in twilight , the circular fibers relax , the previously stretched radi- ating fibers contract by elasticity , and enlarge the pupil . At ...
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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