Lenses and Systems of Lenses |
From inside the book
Results 1-5 of 20
Page 4
... equal to one another . 7. In the first place , we will investigate formulæ connect- ing the position of the incident ray , with that of the ray after refraction , at one surface only . 8. To find the angle between the incident ray and ...
... equal to one another . 7. In the first place , we will investigate formulæ connect- ing the position of the incident ray , with that of the ray after refraction , at one surface only . 8. To find the angle between the incident ray and ...
Page 12
... equal to F " D ' . If , therefore , through the focus F " we draw the line F'D ' perpendicular to the axis and equal in length to AY— FD , we shall so determine the point D ' , which is a point on the refracted ray . The straight line ...
... equal to F " D ' . If , therefore , through the focus F " we draw the line F'D ' perpendicular to the axis and equal in length to AY— FD , we shall so determine the point D ' , which is a point on the refracted ray . The straight line ...
Page 18
... equal to the ratio of the y coor- CT dinates of the points T " and T , i.e. of the points on the two portions of the ray whose abscissa is a + ; therefore m1r μsin a + bo μη = μ , sina ' ; mor + b2 Мо therefore m1r +6 Мо sin a Imr = Ꭸ ...
... equal to the ratio of the y coor- CT dinates of the points T " and T , i.e. of the points on the two portions of the ray whose abscissa is a + ; therefore m1r μsin a + bo μη = μ , sina ' ; mor + b2 Мо therefore m1r +6 Мо sin a Imr = Ꭸ ...
Page 22
... equal in length , but on opposite sides of the axis ; therefore , by similar triangles , FD AF f AN = AN ' f ' = PN F'D ' AF ' and also = P'N ' = AN' ̄ ̄ AN ' ' Hence ƒ.PN _ƒ'.P'N ' AN AN ' , numerically , 22 LENSES AND SYSTEMS OF LENSES .
... equal in length , but on opposite sides of the axis ; therefore , by similar triangles , FD AF f AN = AN ' f ' = PN F'D ' AF ' and also = P'N ' = AN' ̄ ̄ AN ' ' Hence ƒ.PN _ƒ'.P'N ' AN AN ' , numerically , 22 LENSES AND SYSTEMS OF LENSES .
Page 41
... equal to one another , if the extreme media are the same ; but they are not necessarily equal , if the extreme media are different . 67. Definition . The distance H'F ' is called the Focal Length of the Lens . We may however take the ...
... equal to one another , if the extreme media are the same ; but they are not necessarily equal , if the extreme media are different . 67. Definition . The distance H'F ' is called the Focal Length of the Lens . We may however take the ...
Other editions - View all
Common terms and phrases
2nd edition 3rd edition 4th edition absolute distances Aeneid axis Book Camb Cambridge Carl Neumann conjugate planes conjugate points continued fraction Demy 8vo denote determine deviation Elementary emergent ray equations equivalent lens extreme media F and F F. A. PALEY Fcap Fellow of St focal length formula French Geometry GEORGE LONG Grammar Greek Hence incident ray Index infinite distance J. H. FREESE John's College Latin LL.D luminous point M.A. Small post m₁ magnification produced Math meet the axis numerous P₁ P₂ parallel PENDLEBURY PH.D point conjugate point Q position Principal Planes Principal Points Professor Prose reduced distance refracted ray refracting surface refractive indices respectively revised School second surface sewed Small post 8vo straight lines system of lenses t₁ Texts with Notes thick lens thin lens Translated Trinity College V₁ vertex vols μη μο Мо
Popular passages
Page 76 - QUINTILIAN'S Institutes of Oratory, or Education of an Orator. Translated by the Rev. JS Watson, MA 2 vols. 5* each. RACINE'S (Jean) Dramatic Works. A metrical English version. By R. Bruce Boswell, MA Oxon. 2 vols. 3*.
Page 88 - ... by HT Ryde. Portraits of Robespierre, Madame Roland, and Charlotte Corday. 3 vols. The Restoration of Monarchy in France (a Sequel to The Girondists). 5 Portraits. 4 vols. The French Revolution of 1848.
Page 72 - AMMIANUS MARCELLINUS. History of Rome during the Reigns of Constantius, Julian, Jovianus, Valentinian, and Valens. Translated by Prof. CD Yonge, MA js.
Page 4 - A Biographical and Critical Dictionary of Painters and Engravers. With a List of Ciphers, Monograms, and Marks. By MICHAEL BBYAN.
Page 79 - Fcap. 8vo. is. FIRST LATIN LESSONS. Fourth Edition. Crown 8vo. 2s. FIRST LATIN READER. With Notes adapted to the Shorter Latin Primer and Vocabulary.
Page 8 - The Greek Testament : with a critically revised Text ; a Digest of Various Readings ; Marginal References to Verbal and Idiomatic Usage ; Prolegomena ;"and a Critical and Exegetical Commentary. For the Use of Theological Students and Ministers.
Page 89 - SHARPE (S.) The History of Egypt, from the Earliest Times till the Conquest by the Arabs, AD 640. By Samuel Sharpe. 2 Maps and upwards of 400 Illustrative Woodcuts.
Page 9 - British Birds ; or, History of the Feathered Tribes of the British Islands. Revised by W. CL Martin. With 52 Figures of Birds and 7 Coloured Plates of Eggs.
Page 8 - DCL 2 vols. SIX OLD ENGLISH CHRONICLES : viz., Asser's Life of Alfred and the Chronicles of Ethelwerd, Gildas, Nennius, Geoffrey of Monmouth, and Richard of Cirencester.
Page 83 - The Enunciations and Figures belonging to the Propositions in the First Six and part of the Eleventh Books of Euclid's Elements, (usually read in the Universities,) prepared for Students in Geometry By the Rev. J. Brasse, DD New Edition. Fcap. 8vo. Is. On cards, in case, 5s. 6d. ; without the Figures, 6d.