TERMIUM Plus®
From: Translation Bureau
On social media
Consult the Government of Canada’s terminology data bank.
INDEX MIRROR [5 records]
Record 1 - internal organization data 2010-03-15
Record 1, English
Record 1, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Air Navigation Aids
Record 1, Main entry term, English
- index prism
1, record 1, English, index%20prism
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A sextant prism which can be rotated to any angle corresponding to altitudes between established limits; the bubble or pendulum sextant counterpart of the index mirror of a marine sextant. 1, record 1, English, - index%20prism
Record 1, French
Record 1, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Aides à la navigation aérienne
Record 1, Main entry term, French
- prisme de tête
1, record 1, French, prisme%20de%20t%C3%AAte
masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2004-02-16
Record 2, English
Record 2, Subject field(s)
- Optics
Record 2, Main entry term, English
- non-rotating liquid mirror
1, record 2, English, non%2Drotating%20liquid%20mirror
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
A non-rotating liquid mirror based on GRIN(gradient index) optics has been proposed by Borra... It consists of a stationary container having a thin layer of mercury covered with a transparent liquid in which one introduces a radial dependence of the index of refraction. It focuses light like a mirror but has the chromatic aberrations of a lens. 1, record 2, English, - non%2Drotating%20liquid%20mirror
Record 2, French
Record 2, Domaine(s)
- Optique
Record 2, Main entry term, French
- miroir liquide au repos
1, record 2, French, miroir%20liquide%20au%20repos
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- miroir liquide stationnaire 2, record 2, French, miroir%20liquide%20stationnaire
correct, masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Nous pouvons distinguer deux types de télescopes à miroir liquide : le miroir liquide en rotation et celui au repos. Le miroir liquide au repos est en fait une masse de liquide avec un gradient d'indice radial. 1, record 2, French, - miroir%20liquide%20au%20repos
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2004-02-13
Record 3, English
Record 3, Subject field(s)
- Optics
Record 3, Main entry term, English
- liquid GRIN mirror
1, record 3, English, liquid%20GRIN%20mirror
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
Liquid GRIN mirror : A new type of non-rotating liquid mirror based on GRIN(gradient index) optics has been proposed by Borra. The mirror consists of a stationary container having a thin layer of mercury covered with a transparent liquid in which one introduces a radial dependence of the index of refraction. 1, record 3, English, - liquid%20GRIN%20mirror
Record 3, French
Record 3, Domaine(s)
- Optique
Record 3, Main entry term, French
- miroir à GRIN liquide
1, record 3, French, miroir%20%C3%A0%20GRIN%20liquide
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- miroir liquide à gradient d'indice 1, record 3, French, miroir%20liquide%20%C3%A0%20gradient%20d%27indice
correct, masculine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Le principe de fonctionnement du miroir liquide à gradient d'indice de réfraction, ou miroir à GRIN liquide (gradient d'indice), consiste à superposer une lentille convergente à un miroir plan afin de focaliser la lumière. Ceci équivaut à utiliser un miroir convergent. 1, record 3, French, - miroir%20%C3%A0%20GRIN%20liquide
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 1999-05-10
Record 4, English
Record 4, Subject field(s)
- Surveying Instruments
Record 4, Main entry term, English
- optical square
1, record 4, English, optical%20square
correct, Great Britain
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
A small hand instrument used by surveyors for laying off a right angle by means of two mirrors set at an angle of 45 degrees. 2, record 4, English, - optical%20square
Record number: 4, Textual support number: 1 CONT
The optical square... consists essentially of two mirrors placed at an angle of 45° to each other and contained in a flat cylindrical metal box... One of the mirrors, "I", is called the index glass and is wholly silvered, while the other mirror, "H’, is called the horizon glass and has its lower half silvered and its upper half plain. 3, record 4, English, - optical%20square
Record 4, Key term(s)
- right angle prism
Record 4, French
Record 4, Domaine(s)
- Instruments d'arpentage
Record 4, Main entry term, French
- équerre optique
1, record 4, French, %C3%A9querre%20optique
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
- équerre à prisme 2, record 4, French, %C3%A9querre%20%C3%A0%20prisme
correct, feminine noun
- équerre à miroirs 3, record 4, French, %C3%A9querre%20%C3%A0%20miroirs
correct, feminine noun
- équerre à prismes 3, record 4, French, %C3%A9querre%20%C3%A0%20prismes
correct, feminine noun
- équerre à réflexion 3, record 4, French, %C3%A9querre%20%C3%A0%20r%C3%A9flexion
correct, feminine noun
- équerre à deux miroirs 4, record 4, French, %C3%A9querre%20%C3%A0%20deux%20miroirs
correct, feminine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
L'équerre à prismes, aussi appelée équerre optique, est formée d'un prisme pentagonal dont les faces réfléchissantes forment entre elles un angle de 45°. L'équerre optique double à deux prismes pentagonaux superposés, ce qui permet de placer un point dans un alignement donné. 3, record 4, French, - %C3%A9querre%20optique
Record number: 4, Textual support number: 2 CONT
L'équerre à miroirs, aussi appelée équerre à réflexion, est formée de deux miroirs, fixés à 45° l'un de l'autre, donnant après réflexion deux directions perpendiculaires. 3, record 4, French, - %C3%A9querre%20optique
Record number: 4, Textual support number: 3 CONT
Équerre à deux miroirs - Elle se compose de deux miroirs faisant entre eux un angle de 50 grades [...] 4, record 4, French, - %C3%A9querre%20optique
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 1990-06-12
Record 5, English
Record 5, Subject field(s)
- River and Sea Navigation
- Ship Piloting
Record 5, Main entry term, English
- index mirror
1, record 5, English, index%20mirror
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 OBS
Record 5, French
Record 5, Domaine(s)
- Navigation fluviale et maritime
- Pilotage des navires
Record 5, Main entry term, French
- grand miroir
1, record 5, French, grand%20miroir
correct, masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record 5, Spanish
Record 5, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2026
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
GCtranslate (available on the Government of Canada network only)
Use this artificial intelligence prototype to translate Government of Canada content up to and including Protected B. Available to employees of selected departments and agencies only.
Writing tools
The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies
Access Translation Bureau glossaries and vocabularies.
- Date Modified: