Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
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Página 33
... opposite direction by the concave lens . Such a com- bination will therefore make no image . In order that such a combination should make an image at all , it is necessary that the convexity should predominate over the concavity , as in ...
... opposite direction by the concave lens . Such a com- bination will therefore make no image . In order that such a combination should make an image at all , it is necessary that the convexity should predominate over the concavity , as in ...
Página 51
... opposite of myopy . Like the latter , it is a structural defect , but in the opposite direction . In this case the lens is not sufficiently refractive for the length of the chamber , or the receiving screen is too near ( at S'S ' , Fig ...
... opposite of myopy . Like the latter , it is a structural defect , but in the opposite direction . In this case the lens is not sufficiently refractive for the length of the chamber , or the receiving screen is too near ( at S'S ' , Fig ...
Página 60
... opposite affections of the retina , so that there are only two essen- tially distinct color - affections of the retina , which , with their opposites , produce the two pairs of complementary colors : the one with its opposite produces ...
... opposite affections of the retina , so that there are only two essen- tially distinct color - affections of the retina , which , with their opposites , produce the two pairs of complementary colors : the one with its opposite produces ...
Página 61
... opposite , yellow and blue . This , though more doubtful , seems a probable cause of com- plementariness . Theory of Color - Perception . - Color - perception is un- doubtedly a simple perception , and irresolvable into any other . It ...
... opposite , yellow and blue . This , though more doubtful , seems a probable cause of com- plementariness . Theory of Color - Perception . - Color - perception is un- doubtedly a simple perception , and irresolvable into any other . It ...
Página 67
... opposite or external side . The spectrum thus produced has a deep steel - blue center , with a brilliant yellow border , and reminds one of the beauty spots on a peacock's feather or a butterfly's wing . Remove the pressure to any other ...
... opposite or external side . The spectrum thus produced has a deep steel - blue center , with a brilliant yellow border , and reminds one of the beauty spots on a peacock's feather or a butterfly's wing . Remove the pressure to any other ...
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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