Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1897 - 318 páginas |
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Página 12
... look upward , we bring into action the two superior recti ; if downward , the two inferior recti . In both these cases , however , the oblique muscles must co - operate . In look- ing upward , the inferior oblique counteracts both the ...
... look upward , we bring into action the two superior recti ; if downward , the two inferior recti . In both these cases , however , the oblique muscles must co - operate . In look- ing upward , the inferior oblique counteracts both the ...
Página 14
... 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 24
... . They are both now pure optical instruments , and 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 24.
... . They are both now pure optical instruments , and 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 24.
Página 25
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 26
... 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
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