Polarisation of LightMacmillan and Company, 1891 - 151 páginas |
Dentro del libro
Resultados 1-5 de 8
Página 37
... emerge with a differ- ence of phase . The amount of this difference is pro- portional to the thickness of the plate . On entering the analyser the vibrations of each pair of rays are resolved into one plane ; and are then in a condition ...
... emerge with a differ- ence of phase . The amount of this difference is pro- portional to the thickness of the plate . On entering the analyser the vibrations of each pair of rays are resolved into one plane ; and are then in a condition ...
Página 38
... emerge from the selenite , when the plate is of such a thickness as to cause a retardation equal to one or to any whole number of wave lengths . Turn the wires about their middle lines M N M'N ' until they meet half - way , i.e. in a ...
... emerge from the selenite , when the plate is of such a thickness as to cause a retardation equal to one or to any whole number of wave lengths . Turn the wires about their middle lines M N M'N ' until they meet half - way , i.e. in a ...
Página 39
... emerge from the selenite when the plate is of such a thickness as to cause a retardation of a fraction of a wave length equal to the amount of shift . And on turning the wires as before , we should find that in one image the waves ...
... emerge from the selenite when the plate is of such a thickness as to cause a retardation of a fraction of a wave length equal to the amount of shift . And on turning the wires as before , we should find that in one image the waves ...
Página 70
... emerge P FIG . 14 . perpendicularly to the other end . These two reflex- ions will together produce a retardation , as described above , of one - fourth of a wave length . And if the ray be originally polarised , and its plane of ...
... emerge P FIG . 14 . perpendicularly to the other end . These two reflex- ions will together produce a retardation , as described above , of one - fourth of a wave length . And if the ray be originally polarised , and its plane of ...
Página 108
... emerge parallel to one another , and may be represented by the lines st , rv . Similarly , the effect of double re- fraction on on ' may be represented by n ' s , n'v ' , st , v . Suppose now that the process were re- versed , and that ...
... emerge parallel to one another , and may be represented by the lines st , rv . Similarly , the effect of double re- fraction on on ' may be represented by n ' s , n'v ' , st , v . Suppose now that the process were re- versed , and that ...
Otras ediciones - Ver todas
Términos y frases comunes
analyser be turned angle of incidence axis bands beam bi-axal crystals biquartz centre circular polarisation circularly coincide complementary complementary colours consequently Crown 8vo crystal plate cut perpendicularly dark difference of phase different colours double refraction effect ellipses equal ether exhibit extinguished field of view film glass hyperbolas Iceland spar inclined instrument intermediate laminæ left-handed mean-line motion Nicol Nicol's prism oblique opposite optic axes ordinary ordinary ray orthorhombic overlap pair parallel particle perpendicular phenomena placed plane containing plane of polarisation plane of reflexion plane of vibration plane-polarised plate of quartz polar clock polariscope polarised light polariser and analyser polarising angle position principal section produced quadrants quarter-undulation plate quartz plate rectilinear reflected ray retardation rhombohedron right angles right-handed rotation secondary figures seen selenite silver plate spectrum straight lines successive polarisation surface thickness tints tion traversed tube turned round uni-axal velocity wave length wedges
Pasajes populares
Página 147 - SOUND : a Series of Simple, Entertaining, and Inexpensive Experiments in the Phenomena of Sound, for the Use of Students of every age.
Página 148 - FELKIN, HM— Technical Education in a Saxon Town. Published for the City and Guilds of London Institute for the Advancement of Technical Education.
Página 148 - MATHEMATICAL AND PHYSICAL PAPERS, By GEORGE GABRIEL STOKES, MA, DCL, LL.D., FRS, Fellow . of Pembroke College, and Lucasian Professor of Mathematics in the University of Cambridge. Reprinted from the Original Journals and Transactions, with Additional Notes by the Author. Vol. I. Demy 8vo. cloth. 15*.
Página 147 - With numerous Illustrations. Crown 8vo. y. 6d. POLARISATION OF LIGHT. By W. SPOTTISWOODE, FRS With many Illustrations. Second Edition. Crown 8vo. 3*. 6d. ON BRITISH WILD FLOWERS CONSIDERED IN RELATION TO INSECTS.
Página 147 - By Sir WILLIAM THOMSON, •DCL, LL.D., FRS, FRSE, Fellow of St. Peter's College, Cambridge, and Professor of Natural Philosophy in the University of Glasgow. Second Edition. Medium 8vo. iSs. THE MOTION OF VORTEX RINGS, A TREATISE ON. An Essay to which the Adams Prize was adjudged in 1882 in the University of Cambridge.
Página 147 - THE SCIENCE OF WEIGHING AND MEASURING, AND THE STANDARDS OF MEASURE AND WEIGHT. By HW CHISHOLM, Warden of the Standards. With numerous Illustrations. Crown 8vo. 4*.
Página 125 - ... and 90° the rings will be contracted and extended in opposite quadrants, until at 45° they are divided by two diagonals, on each side of which the colours are complementary. Beyond 45° the rings begin to coalesce, until at 90° the four quadrants coincide again.
Página 147 - THE COMMON FROG. By ST. GEORGE MIVART, FRS, Lecturer in Comparative Anatomy at St Mary's Hospital. With numerous Illustrations. Crown 8vo.
Página 134 - Lord Rayleigh, and others ; and the combinations have been effected sometimes by causing two spectra at right angles to one another to overlap, and sometimes by bringing images of various parts of a spectrum simultaneously upon the retina. Latterly also W.
Página 148 - ... to a higher place in the educational system of the country. It contains original articles on all subjects within the...