Sight: An Exposition of the Principles of Monocular and Binocular VisionKegan Paul, 1881 - 275 páginas |
Dentro del libro
Resultados 1-5 de 28
Página 67
... wall or ceiling , or , still better , on a bright sky , we see indistinct motes floating about in the field of view on the wall or sky , and slowly gravitating down- ward . Sometimes they are undulating , transparent tubes , with ...
... wall or ceiling , or , still better , on a bright sky , we see indistinct motes floating about in the field of view on the wall or sky , and slowly gravitating down- ward . Sometimes they are undulating , transparent tubes , with ...
Página 68
... wall opposite . Presently the field of view be- comes dark from the intense impression of the light , and then , as you move the light about , there appears projected on the wall and covering its whole surface a shadowy , ghost- like ...
... wall opposite . Presently the field of view be- comes dark from the intense impression of the light , and then , as you move the light about , there appears projected on the wall and covering its whole surface a shadowy , ghost- like ...
Página 69
... wall : a vivid colored spectrum of the sun ( or many of them , if the eye has not been steady while regarding the sun ) is projected into the field of view , and follows all the motions of the eye . This spectrum , on a bright ground ...
... wall : a vivid colored spectrum of the sun ( or many of them , if the eye has not been steady while regarding the sun ) is projected into the field of view , and follows all the motions of the eye . This spectrum , on a bright ground ...
Página 70
... wall , we will see a faint spectrum of the window with all its bars projected against the wall . If we look intently and steadily at any object strongly differentiated from the rest of the wall of a room , as a small picture - frame or ...
... wall , we will see a faint spectrum of the window with all its bars projected against the wall . If we look intently and steadily at any object strongly differentiated from the rest of the wall of a room , as a small picture - frame or ...
Página 71
... wall . The whole pattern of the window will be distinctly seen in complementary colors . Let it be observed here how differently spectral images behave from objects . When we move the eyes about , the images of objects move about on the ...
... wall . The whole pattern of the window will be distinctly seen in complementary colors . Let it be observed here how differently spectral images behave from objects . When we move the eyes about , the images of objects move about on the ...
Otras ediciones - Ver todas
Términos y frases comunes
angle axis 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 diagram direction distance distant objects distinct divergence double images evident Experiment external images farther Fcap fibers field of view Frontispiece Helmholtz heteronymous horizontal horopter horopteric line Illustrations impression inches inclination interocular space jects Large post 8vo left eye left-eye image lens light line of sight look median line monocular motion muscles nearer nose observer ocular optic axes optic centers optic chiasm optic nerve outward parallel perception perfectly phenomena plane Poems point of sight Portrait position price 75 Prof projection rays refractive represent retina retinal images right eye rotation sclerotic screen Second Edition seen single Small crown 8vo stereoscope surface T. H. HUXLEY Third Edition tion torsion Translated vertical meridian vibrations 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$.
Página 9 - XVIII. The Nature of Light: With a General Account of Physical Optics.
Página 26 - MANS (Eliza A.). An Essay on the Culture of the Observing Powers of Children, especially in connection with the Study of Botany. Edited, with Notes and a Supplement, by Joseph Payne, FCP, Author of " Lectures on the Science and Art of Education,
Página 15 - Frank, FRGS— Matabele Land and the Victoria Falls. A Naturalist's Wanderings in the Interior of South Africa. Edited by CG GATES, BA With numerous Illustrations and 4 Maps.
Página 10 - Joseph.— Free Trade in Land. Edited by his Widow. With Preface by the Right Hon.
Página 1 - Phantasmion. A Fairy Tale. With an Introductory Preface by the Right Hon. Lord Coleridge, of Ottery St. Mary. A New Edition. Illustrated. Crown 8vo. Cloth, price js. 6d. Memoir and Letters of Sara Coleridge. Edited by her Daughter. With Index. 2 vols. With Two Portraits. Third Edition, Revised and Corrected. Crown 8vo. Cloth, price 24$.