Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1897 - 318 páginas |
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Página xi
... PERFECT EYE , 24 ; comparison with the camera , 24 ; chromatism , 25 ; correction of chromatism , 25 ; aberra- tion , 29 ; correction of aberration , 30 ; adjustment for light , 31 ; adjustment for distance , 35 ; accommodation of the ...
... PERFECT EYE , 24 ; comparison with the camera , 24 ; chromatism , 25 ; correction of chromatism , 25 ; aberra- tion , 29 ; correction of aberration , 30 ; adjustment for light , 31 ; adjustment for distance , 35 ; accommodation of the ...
Página xv
... perfect plane , but an arch , 238 ; explanation of the arching , 238 ; diagram illustrating , 239 ; Prof. Stevens's device , 240 ; experiments and diagrams illustrating , 241 ; another beautiful experi- ment of Prof. Stevens , 241 ...
... perfect plane , but an arch , 238 ; explanation of the arching , 238 ; diagram illustrating , 239 ; Prof. Stevens's device , 240 ; experiments and diagrams illustrating , 241 ; another beautiful experi- ment of Prof. Stevens , 241 ...
Página 13
... perfect globe , ex- cept that the front part is more protuberant ( Fig . 4 ) . Cm Os ci FIG . 4 . R Ch S Fo SECTION OF THE EYE . - 0 , optic nerve ; S , sclerotic ; Ch , choroid ; R , retina ; v , vitreous body ; Cm , ciliary muscle ...
... perfect globe , ex- cept that the front part is more protuberant ( Fig . 4 ) . Cm Os ci FIG . 4 . R Ch S Fo SECTION OF THE EYE . - 0 , optic nerve ; S , sclerotic ; Ch , choroid ; R , retina ; v , vitreous body ; Cm , ciliary muscle ...
Página 16
... perfect transparency of the lens is obviously necessary for distinct vision ; cataract , a common cause of blindness , arises from its opacity . The lens , with its continuing curtain , completely divides the interior of the ball into ...
... perfect transparency of the lens is obviously necessary for distinct vision ; cataract , a common cause of blindness , arises from its opacity . The lens , with its continuing curtain , completely divides the interior of the ball into ...
Página 17
... perfect image on the retina . With- out images we would perceive light , but not objects ; and distinctness of objects is exactly proportioned to distinctness of retinal images . If the image of an ob- ject is distinct , the object will ...
... perfect image on the retina . With- out images we would perceive light , but not objects ; and distinctness of objects is exactly proportioned to distinctness of retinal images . If the image of an ob- ject is distinct , the object will ...
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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