Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1897 - 318 páginas |
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Página vii
... fore gone over this part again carefully and verified every point , so that I feel more than ever confident of its substantial truth . I have also added in this part a chapter on the form of phantom planes under certain conditions ...
... fore gone over this part again carefully and verified every point , so that I feel more than ever confident of its substantial truth . I have also added in this part a chapter on the form of phantom planes under certain conditions ...
Página 19
... fore the image fainter and fainter . If we suppose the hole to become a mathematical point , then one ray only passes from each point to the object , and goes to its own place in the image ( Fig . 6 , B ) , and the conditions of ...
... fore the image fainter and fainter . If we suppose the hole to become a mathematical point , then one ray only passes from each point to the object , and goes to its own place in the image ( Fig . 6 , B ) , and the conditions of ...
Página 28
... fore will make an image without colored edges . Such a compound lens is called achromatic . 1 This is the way in which art makes achromatic lenses , and all good optical instruments have lenses thus corrected . Now , the lenses of the ...
... fore will make an image without colored edges . Such a compound lens is called achromatic . 1 This is the way in which art makes achromatic lenses , and all good optical instruments have lenses thus corrected . Now , the lenses of the ...
Página 33
... plan , and there- fore called iris diaphragm . It is composed of many very thin metallic plates , partly covering each other , so arranged as to leave a polygonal or nearly circular hole THE EYE AS AN OPTICAL INSTRUMENT . 33.
... plan , and there- fore called iris diaphragm . It is composed of many very thin metallic plates , partly covering each other , so arranged as to leave a polygonal or nearly circular hole THE EYE AS AN OPTICAL INSTRUMENT . 33.
Página 35
... side recedes from the lens . As the object recedes , the image approaches the lens . There- fore there must be an adjustment of the instrument for. DIAGRAM SHOWING THE FORMATION OF A LENS IMAGE . THE EYE AS AN OPTICAL INSTRUMENT . 35.
... side recedes from the lens . As the object recedes , the image approaches the lens . There- fore there must be an adjustment of the instrument for. DIAGRAM SHOWING THE FORMATION OF A LENS IMAGE . THE EYE AS AN OPTICAL INSTRUMENT . 35.
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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