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Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

Holographic optical elements are relatively easy to make and can function as lenses, mirrors, diffraction gratings, beam splitters, etc., in place of more traditional optical components.  4, record 1, English, - holographic%20optical%20element

Record 1,  Textual support,  French

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

… the twin-image problem of conventional holography is a direct consequence of the fact that the hologram is recorded on a two‑dimensional surface. Like optical volume holography, which overcomes this problem by recording a diffraction pattern on a thick photographic emulsion, multienergy [holographic crystallography] HXT does so by recording the pattern in a volume of reciprocal space.  2, record 2, English, - optical%20volume%20holography

Record 2,  Textual support,  French

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

[A] diffraction grating formed by recording an interference pattern in a suitable light-sensitive medium.  2, record 3, English, - holographic%20diffraction%20grating

Record 3,  Textual support,  French

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

An optical device consisting of an assembly of narrow slits or grooves which produce a large number of beams that can interfere to produce spectra.  3, record 4, English, - diffraction%20grating

Record number: 4, Textual support number: 1 CONT

Photoelectric spectrophotometers may be divided into one-cell and two-cell instruments, and also into types using a diffraction grating or a prism in their monochromators.  4, record 4, English, - diffraction%20grating

Record number: 4, Textual support number: 1 PHR

Holographic diffraction grating.  5, record 4, English, - diffraction%20grating

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

Le spectroscope se compose essentiellement d'un système dispersant, prisme ou réseau de diffraction, précédé d'un collimateur et suivi d'une lunette destinée à l'observation des spectres et, éventuellement, à la mesure des longueurs d'ondes.  3, record 4, French, - r%C3%A9seau%20de%20diffraction

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  French

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 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.  1, record 6, English, - thin%2Dfilm%20lens

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 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.  1, record 6, French, - lentille%20%C3%A0%20couche%20mince

Record 6,  Textual support,  Spanish