Polarisation of LightMacmillan and Company, 1891 - 151 páginas |
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Página 8
... seen through the revolving tourmalin ( or analyser ) will also vary . This fact may also be ex- pressed thus : In polarisation by reflexion , the degree of polarisation , or the amount of polarised light in the reflected rays , varies ...
... seen through the revolving tourmalin ( or analyser ) will also vary . This fact may also be ex- pressed thus : In polarisation by reflexion , the degree of polarisation , or the amount of polarised light in the reflected rays , varies ...
Página 17
... seen that a ray of light transmitted perpendicularly to these planes , that is , parallel to the line joining the blunt angles , is not divided . In fact , the image either of C the aperture of the lantern projected on a screen , [ I ...
... seen that a ray of light transmitted perpendicularly to these planes , that is , parallel to the line joining the blunt angles , is not divided . In fact , the image either of C the aperture of the lantern projected on a screen , [ I ...
Página 18
... seen by the eye in the direction in question , appears single , as if passed through a block of glass . The direction in question ( viz . the line a b itself , and m FIG . 9 . all lines passing through any part of the crystal parallel ...
... seen by the eye in the direction in question , appears single , as if passed through a block of glass . The direction in question ( viz . the line a b itself , and m FIG . 9 . all lines passing through any part of the crystal parallel ...
Página 21
... seen to be greatest at two opposite points , and least at two opposite points each 90 ° from the former two ; while in intermediate parts the light exhibits gradations from the maximum to the minimum intensity . For other positions of ...
... seen to be greatest at two opposite points , and least at two opposite points each 90 ° from the former two ; while in intermediate parts the light exhibits gradations from the maximum to the minimum intensity . For other positions of ...
Página 24
... seen to fade in the same way as in the case of the tourmalin plates ; until , when it has been turned through a right angle , or , as it is usually expressed , when the polariser and analyser are crossed , the light is totally ...
... seen to fade in the same way as in the case of the tourmalin plates ; until , when it has been turned through a right angle , or , as it is usually expressed , when the polariser and analyser are crossed , the light is totally ...
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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
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