Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1897 - 318 páginas |
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Página 36
... jects and shorten it for more distant . In the micro- scope , on the contrary , the image is usually thrown to the same place in the upper part of the tube . If , there- fore , the object approaches nearer the lens ( as it does in ...
... jects and shorten it for more distant . In the micro- scope , on the contrary , the image is usually thrown to the same place in the upper part of the tube . If , there- fore , the object approaches nearer the lens ( as it does in ...
Página 43
... jects ; one for walking and one for reading . The hy- permetropic eye may be compared to a camera which , when entirely pushed up , is too short for the imaging of any objects whatever . By drawing the tube , it may be adjusted for ...
... jects ; one for walking and one for reading . The hy- permetropic eye may be compared to a camera which , when entirely pushed up , is too short for the imaging of any objects whatever . By drawing the tube , it may be adjusted for ...
Página 69
... jects and parts of objects . Together they explain all the phenomena of monocular vision except color . The whole science of monocular vision is but a logical ex- plication of these two laws . It is necessary , however , to take up some ...
... jects and parts of objects . Together they explain all the phenomena of monocular vision except color . The whole science of monocular vision is but a logical ex- plication of these two laws . It is necessary , however , to take up some ...
Página 124
... jects seem to stand still , and the eyes or the point of sight to sweep over them . But if we move the eyes in opposite directions , as in converging the optic axes strongly and then allowing them to become again par- allel , objects ...
... jects seem to stand still , and the eyes or the point of sight to sweep over them . But if we move the eyes in opposite directions , as in converging the optic axes strongly and then allowing them to become again par- allel , objects ...
Página 129
... jects which you desire to combine . If you now look at the pencil , the ocular convergence will be exactly suitable ... ject . For example : Experiment 1. - Place two pieces of money of the same kind on the table , being careful that the ...
... jects which you desire to combine . If you now look at the pencil , the ocular convergence will be exactly suitable ... ject . For example : Experiment 1. - Place two pieces of money of the same kind on the table , being careful that the ...
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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