TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
THIN FILM LIGHT INTERFERENCE [2 records]
Record 1 - internal organization data 1998-02-27
Record 1, English
Record 1, Subject field(s)
- Chemistry
Record 1, Main entry term, English
- silver film
1, record 1, English, silver%20film
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 OBS
When viewed in reflected white light against a black background, transparent films show the classical interference colours of thin plates which permit an estimate of their thickness to be made. When of the order of 100nm... in thickness they appear white(silver film) and when thinner they appear gradually less intensely white, then grey and finally black. 1, record 1, English, - silver%20film
Record 1, French
Record 1, Domaine(s)
- Chimie
Record 1, Main entry term, French
- film d'argent
1, record 1, French, film%20d%27argent
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
Quand on observe à la lumière blanche réfléchie sur un fond noir, il s'agit de films transparents présentant de l'interférence classique des couleurs de couches minces permettant de faire une évaluation de leur épaisseur. Lorsque l'ordre de grandeur de leur épaisseur est de 100 nm [...], ils apparaissent comme blanc (film d'argent); lorsqu'ils sont plus minces, leur couleur apparaît graduellement comme moins intense, puis elle apparaît comme grise et finalement noire. 1, record 1, French, - film%20d%27argent
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1997-01-31
Record 2, English
Record 2, Subject field(s)
- Coins and Bank Notes
- Numismatics
- Coining
Record 2, Main entry term, English
- rub
1, record 2, English, rub
correct, noun
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The very slightest of wear on a coin at its highest points of relief or where the lustre has been destroyed; it is caused by light friction as in loose coin storage or even by light circulation. 1, record 2, English, - rub
Record number: 2, Textual support number: 1 OBS
Generally, rub is claimed only if it can be detected without using magnification and where the lustre is clearly broken. On toned coins that are generally dark, a very slight lighter tone at the highest point does not necessarily mean the lustre has been broken; a thinning of the transparent film that gives the perception of colour may have occurred but not to the point where the lustre has been touched. 1, record 2, English, - rub
Record number: 2, Textual support number: 2 OBS
See related term :thin film light interference. 1, record 2, English, - rub
Record 2, French
Record 2, Domaine(s)
- Pièces de monnaie et billets de banque
- Numismatique
- Monnayage
Record 2, Main entry term, French
- frottement
1, record 2, French, frottement
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record 2, Spanish
Record 2, Textual support, Spanish
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