Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1897 - 318 páginas |
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Página 6
... objects at a distance begins ; still it is by direct contact , for par- ticles from the distant body must touch the olfactive nerve . Thus far the impression is immediate . In hear- ing , there is no direct contact of the sounding body ...
... objects at a distance begins ; still it is by direct contact , for par- ticles from the distant body must touch the olfactive nerve . Thus far the impression is immediate . In hear- ing , there is no direct contact of the sounding body ...
Página 23
... object as the former is nearer to the nodal point than the latter , and therefore for distant objects it must be extremely minute . CHAPTER II . THE EYE AS AN OPTICAL INSTRUMENT . FORMATION OF THE IMAGE . 23 nodal point,
... object as the former is nearer to the nodal point than the latter , and therefore for distant objects it must be extremely minute . CHAPTER II . THE EYE AS AN OPTICAL INSTRUMENT . FORMATION OF THE IMAGE . 23 nodal point,
Página 34
... objects . The purpose of this as al- ready stated on page 31 , is , that correc- tion of spherical aberration is ... distant point , say the wall , d . The optic axes are now nearly parallel , d R , d L. Tell a friend to ob- serve the ...
... objects . The purpose of this as al- ready stated on page 31 , is , that correc- tion of spherical aberration is ... distant point , say the wall , d . The optic axes are now nearly parallel , d R , d L. Tell a friend to ob- serve the ...
Página 38
... distant objects ; N , to near objects ; a , aqueous humor ; d , ciliary muscle ; e , ciliary process . Again , the nature of the change of the image , viz . , that it becomes smaller , shows that this anterior surface be- comes more ...
... distant objects ; N , to near objects ; a , aqueous humor ; d , ciliary muscle ; e , ciliary process . Again , the nature of the change of the image , viz . , that it becomes smaller , shows that this anterior surface be- comes more ...
Página 39
... objects by contraction of the ciliary muscle . There are other views on this subject , but this seems the most probable . The normal eye in a passive state is adjusted to in- finitely distant objects . By change of the form of the lens ...
... objects by contraction of the ciliary muscle . There are other views on this subject , but this seems the most probable . The normal eye in a passive state is adjusted to in- finitely distant objects . By change of the form of the lens ...
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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