Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
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Página 19
... look upward , we bring into action the two superior recti ; if downward , the two inferior recti ; if to the right , the exterior rectus of the right and the interior rectus of the left eye ; if to the left , the external rectus of the ...
... look upward , we bring into action the two superior recti ; if downward , the two inferior recti ; if to the right , the exterior rectus of the right and the interior rectus of the left eye ; if to the left , the external rectus of the ...
Página 22
... looks through the pupil into the dark interior of the ball . The function of the pupil is to admit , and at the same time regulate the amount of , light . 4. Linings . Thus much is visible to the naked eye without dissection . But , if ...
... looks through the pupil into the dark interior of the ball . The function of the pupil is to admit , and at the same time regulate the amount of , light . 4. Linings . Thus much is visible to the naked eye without dissection . But , if ...
Página 30
... nothing more . They are both contrived for the same purpose , viz . , the for- mation of a perfect image on a screen properly placed . Look into the camera from behind , and we see CHAPTER II THE EYE AS AN OPTICAL INSTRUMENT.
... nothing more . They are both contrived for the same purpose , viz . , the for- mation of a perfect image on a screen properly placed . Look into the camera from behind , and we see CHAPTER II THE EYE AS AN OPTICAL INSTRUMENT.
Página 31
An Exposition of the Principles of Monocular and Binocular Vision Joseph LeConte. Look into the camera from behind , and we see the inverted image on the ground - glass plate ; look into the eye from behind , and we see also an inverted ...
An Exposition of the Principles of Monocular and Binocular Vision Joseph LeConte. Look into the camera from behind , and we see the inverted image on the ground - glass plate ; look into the eye from behind , and we see also an inverted ...
Página 32
... look through a prism at objects , we will find that the outlines of the objects will be edged with exactly similar colors . Now all refraction is accompanied by dispersion ; therefore a simple , uncorrected lens always disperses ...
... look through a prism at objects , we will find that the outlines of the objects will be edged with exactly similar colors . Now all refraction is accompanied by dispersion ; therefore a simple , uncorrected lens always disperses ...
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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