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NICOLS PRISM [1 record]
Record 1 - internal organization data 2001-03-27
Record 1, English
Record 1, Subject field(s)
- Optics
- Mineralogy
- Scientific Instruments
Record 1, Main entry term, English
- nicol
1, record 1, English, nicol
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- nicol prism 1, record 1, English, nicol%20prism
correct
- Nicol 1, record 1, English, Nicol
correct
- Nicol prism 2, record 1, English, Nicol%20prism
correct
- Nicol's prism 3, record 1, English, Nicol%27s%20prism
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A device for producing plane-polarized light, consisting of two pieces of transparent calcite (a birefringent crystal) which together form a parallelogram and are cemented together with Canada balsam. 4, record 1, English, - nicol
Record 1, French
Record 1, Domaine(s)
- Optique
- Minéralogie
- Instruments scientifiques
Record 1, Main entry term, French
- prisme de Nicol
1, record 1, French, prisme%20de%20Nicol
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- nicol 2, record 1, French, nicol
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Dispositif permettant d'obtenir de la lumière polarisée, fondé sur l'inégale réfrangibilité des deux rayons polarisés dans les cristaux biréfringents. 3, record 1, French, - prisme%20de%20Nicol
Record number: 1, Textual support number: 1 CONT
Le nicol est constitué par un spath coupé obliquement sous un angle de 35° environ et dont on a recollé les deux parties à l'aide de baume du Canada. On emploie le nicol dans les expériences de polarisation, soit comme polariseur, soit comme analyseur. 3, record 1, French, - prisme%20de%20Nicol
Record number: 1, Textual support number: 2 CONT
Le microscope polarisant possède deux dispositifs polarisateurs taillés dans des rhomboèdres de calcite (prismes de Nicol, du nom de leur inventeur, ou encore nicols). L'un, fixe, est placé sous la platine (polariseur). La lumière qui traverse la lame mince est donc polarisée. L'autre (analyseur), situé entre l'objectif et l'oculaire, est amovible et disposé perpendiculairement au premier. 4, record 1, French, - prisme%20de%20Nicol
Record number: 1, Textual support number: 1 OBS
Voir aussi «nicols croisés». 5, record 1, French, - prisme%20de%20Nicol
Record 1, Spanish
Record 1, Textual support, Spanish
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