Sight: An Exposition of the Principles of Monocular and Binocular VisionKegan Paul, 1881 - 307 páginas |
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Página 45
An Exposition of the Principles of Monocular and Binocular Vision Joseph Le Conte. inches . The range of adjustment ... inch lens , its two - inch lens , its one - inch lens , its half - inch lens , its quarter - inch , its tenth - inch ...
An Exposition of the Principles of Monocular and Binocular Vision Joseph Le Conte. inches . The range of adjustment ... inch lens , its two - inch lens , its one - inch lens , its half - inch lens , its quarter - inch , its tenth - inch ...
Página 46
... Near - Sightedness . - The normal or emmetropic eye adjusts itself perfectly for all distances , from about five inches to infinity . It makes a perfect image of objects at all these distances DEFECTS OF THE EYE AS AN INSTRUMENT •
... Near - Sightedness . - The normal or emmetropic eye adjusts itself perfectly for all distances , from about five inches to infinity . It makes a perfect image of objects at all these distances DEFECTS OF THE EYE AS AN INSTRUMENT •
Página 47
... inches . Now in the passive state of the eye , as for instance in gazing on vacancy , or when the eye is taken out of the socket as a dead instrument , it is prearranged for perfect image of objects at an infinite distance . Its focus ...
... inches . Now in the passive state of the eye , as for instance in gazing on vacancy , or when the eye is taken out of the socket as a dead instrument , it is prearranged for perfect image of objects at an infinite distance . Its focus ...
Página 48
... inches , but the latter is a far more use- ful range . The myopic eye , therefore , is like a camera which was never intended to be used for taking distant objects , which , therefore , when shortened to the greatest degree , is still ...
... inches , but the latter is a far more use- ful range . The myopic eye , therefore , is like a camera which was never intended to be used for taking distant objects , which , therefore , when shortened to the greatest degree , is still ...
Página 50
... inches , near limit , and infinite distance , the farther limit ( if limit it can be called ) ; in the myopic eye the nearer limit may be two inches , the farther limit four inches , or it may be between three and six inches , or four ...
... inches , near limit , and infinite distance , the farther limit ( if limit it can be called ) ; in the myopic eye the nearer limit may be two inches , the farther limit four inches , or it may be between three and six inches , or four ...
Otras ediciones - Ver todas
Términos y frases comunes
angle bacillary layer binocular eye binocular perspective binocular vision camera central spot Cheaper Edition ciliary muscle Cloth colors combined images cones corresponding points cross Demy 8vo depth of space distant objects distinct double images evident exactly Experiment external images farther Fcap fibers field of view focal adjustment foreground forms of perspective Frontispiece heteronymously horizontal horopter identical points Illustrations impression inches inclination interocular space jects judgments Large post 8vo left eye lens light line of sight look median plane monocular motion muscles naked eyes nearer nose object or scene observer ocular optic axes optic chiasm optic convergence optic nerve outward parallel perception of depth perfectly Poems point of sight position projection represent retina retinal images right and left right eye rotation screen Second Edition seen single side Small crown 8vo stereoscope stereoscopic pictures Third Edition tion torsion turn the eyes visual lines visual result vols
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