Sight: An Exposition of the Principles of Monocular and Binocular VisionKegan Paul, 1881 - 275 páginas |
Dentro del libro
Resultados 1-5 de 39
Página 18
... middle or equator of the globe ( Fig . 3 ) . They are called severally superior , inferior , external , and internal rectus . The first turns the ball upward , the second downward , the third to the right , and the fourth to the left ...
... middle or equator of the globe ( Fig . 3 ) . They are called severally superior , inferior , external , and internal rectus . The first turns the ball upward , the second downward , the third to the right , and the fourth to the left ...
Página 21
... . This transverse plate is not perfectly flat , but protrudes a little in the middle . In its center is a round hole , called the pupil , corresponding in position with the hole in the watch face GENERAL STRUCTURE OF THE EYE . 21.
... . This transverse plate is not perfectly flat , but protrudes a little in the middle . In its center is a round hole , called the pupil , corresponding in position with the hole in the watch face GENERAL STRUCTURE OF THE EYE . 21.
Página 37
... middle of the field of view , i . e . , nearly directly in front , are brought to a perfect focus , the rays from radiants situ- ated near the margins of the field of view , i . e . , of very oblique pencils , are not brought to a focus ...
... middle of the field of view , i . e . , nearly directly in front , are brought to a perfect focus , the rays from radiants situ- ated near the margins of the field of view , i . e . , of very oblique pencils , are not brought to a focus ...
Página 38
... middle . The circumference of the disk is immovably fixed to the sclerotic at its junction with the cornea ; but the margin of the circular hole , or pupil , is free to move . The disk itself is composed of two sets of contractile ...
... middle . The circumference of the disk is immovably fixed to the sclerotic at its junction with the cornea ; but the margin of the circular hole , or pupil , is free to move . The disk itself is composed of two sets of contractile ...
Página 39
... plan . It is com- posed of many very thin metallic plates , partly covering each other , so arranged as to leave a polygonal hole in the middle , and sliding over each other in such THE EYE AS AN OPTICAL INSTRUMENT . 39.
... plan . It is com- posed of many very thin metallic plates , partly covering each other , so arranged as to leave a polygonal hole in the middle , and sliding over each other in such THE EYE AS AN OPTICAL INSTRUMENT . 39.
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$.
Página 9 - XVIII. The Nature of Light: With a General Account of Physical Optics.
Página 26 - MANS (Eliza A.). An Essay on the Culture of the Observing Powers of Children, especially in connection with the Study of Botany. Edited, with Notes and a Supplement, by Joseph Payne, FCP, Author of " Lectures on the Science and Art of Education,
Página 15 - Frank, FRGS— Matabele Land and the Victoria Falls. A Naturalist's Wanderings in the Interior of South Africa. Edited by CG GATES, BA With numerous Illustrations and 4 Maps.
Página 10 - Joseph.— Free Trade in Land. Edited by his Widow. With Preface by the Right Hon.
Página 1 - Phantasmion. A Fairy Tale. With an Introductory Preface by the Right Hon. Lord Coleridge, of Ottery St. Mary. A New Edition. Illustrated. Crown 8vo. Cloth, price js. 6d. Memoir and Letters of Sara Coleridge. Edited by her Daughter. With Index. 2 vols. With Two Portraits. Third Edition, Revised and Corrected. Crown 8vo. Cloth, price 24$.