Sight: An Exposition of the Principles of Monocular and Binocular VisionKegan Paul, 1881 - 307 páginas |
Dentro del libro
Resultados 1-5 de 34
Página 26
... less and less , and therefore 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 ...
... less and less , and therefore 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 ...
Página 51
... less common , which must be briefly characterized . Hyper- metropy is the true 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 ...
... less common , which must be briefly characterized . Hyper- metropy is the true 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 ...
Página 58
... less than one mil- lion cones in a square inch . FIG . 23 . BACILLARY LAYER , VIEWED FROM THE OUTSIDE SURFACE . - A , appearance of usual surface ; B , appearance of surface of the raised margin of yellow spot ; C , surface of central ...
... less than one mil- lion cones in a square inch . FIG . 23 . BACILLARY LAYER , VIEWED FROM THE OUTSIDE SURFACE . - A , appearance of usual surface ; B , appearance of surface of the raised margin of yellow spot ; C , surface of central ...
Página 74
... less and less as we pass outward in any direction toward the margins of the field of view . Standing two feet from the wall , I look at my pen held at arm's length against the wall , and of course see the pen distinctly . Looking still ...
... less and less as we pass outward in any direction toward the margins of the field of view . Standing two feet from the wall , I look at my pen held at arm's length against the wall , and of course see the pen distinctly . Looking still ...
Página 75
... less and less perfect as we pass toward the anterior margin , where its per- ception is so imperfect that we can not tell exactly where the field of view ends , except where it is limited by some portion of the face . Now what is the ...
... less and less perfect as we pass toward the anterior margin , where its per- ception is so imperfect that we can not tell exactly where the field of view ends , except where it is limited by some portion of the face . Now what is the ...
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
Pasajes populares
Página 13 - MOCKLER, E. — A Grammar of the Baloochee Language, as it is spoken in Makran (Ancient Gedrosia), in the Persia-Arabic and Roman characters.
Página 7 - Current Coin. Materialism — The Devil — Crime — Drunkenness — , Pauperism — Emotion — Recreation — The Sabbath. Third Edition. Crown 8vo. Cloth, price 6s. Speech in Season. Fourth Edition. Crown 8vo. Cloth, price o$.
Página 9 - XVIII. The Nature of Light: With a General Account of Physical Optics.
Página 26 - MANS (Eliza A.). An Essay on the Culture of the Observing Powers of Children, especially in connection with the Study of Botany. Edited, with Notes and a Supplement, by Joseph Payne, FCP, Author of " Lectures on the Science and Art of Education,
Página 15 - Frank, FRGS— Matabele Land and the Victoria Falls. A Naturalist's Wanderings in the Interior of South Africa. Edited by CG GATES, BA With numerous Illustrations and 4 Maps.
Página 10 - Joseph.— Free Trade in Land. Edited by his Widow. With Preface by the Right Hon.
Página 1 - Phantasmion. A Fairy Tale. With an Introductory Preface by the Right Hon. Lord Coleridge, of Ottery St. Mary. A New Edition. Illustrated. Crown 8vo. Cloth, price js. 6d. Memoir and Letters of Sara Coleridge. Edited by her Daughter. With Index. 2 vols. With Two Portraits. Third Edition, Revised and Corrected. Crown 8vo. Cloth, price 24$.