TERMIUM Plus®

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INDEX GRATING [2 records]

Record 1 2024-02-22

English

Subject field(s)
  • Automatic Control (Machine Tools)
  • Machine-Tooling (Metallurgy)

French

Domaine(s)
  • Commandes automatiques (Machines-outils)
  • Usinage (Métallurgie)

Spanish

Save record 1

Record 2 1981-11-24

English

Subject field(s)
  • Aeroindustry
CONT

With the D-HUD, a form of holographic recording is used to produce a thin-film lens, covering the whole area of the curved combining glass.(...) This thin-film lens is produced by the use of a laser which records, photographically, a form of diffraction grating within a layer of gelatin which is coated onto the curved combining glass. After processing, the thin film lens is covered by a second glass layer to form a sandwich, with the "lens" formed by changes in the refractive index of the gelatin layer, providing the effect of a diffraction grating.

French

Domaine(s)
  • Constructions aéronautiques
CONT

Ce nouveau collimateur fait appel à une forme d'enregistrement holographique qui crée une lentille à couche mince recouvrant toute la surface de l'optique de mélange. (...) Cette lentille à couche mince est créée par un laser qui enregistre photographiquement une sorte de réseau de diffraction dans une couche de gélatine appliquée sur l'optique de mélange, elle-même recouverte d'une seconde couche de verre formant sandwich.

Spanish

Save record 2

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