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HOLOGRAM LENS [4 records]

Record 1 2023-12-14

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

If a plane-wave reference is used for recording and for reconstruction, then the reconstructed image will coincide with the magnified image of the object in amplitude, although the phase will contain the curvature due to the imaging lens. Alternatively, holographic interference of the object and the plane-wave reference can be formed first and its magnified image projected near the hologram plane...

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

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Record 2 2023-02-28

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

A photograph, as a two-dimensional recording of an image formed by a lens, can be blurred from the start; the sharpness of the image is not affected by the light source used to illuminate it. The situation, however, is completely reversed for an optical hologram, which is a recording of a stationary quantum interference pattern, not an image.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie
CONT

L'acquisition d'un hologramme optique s'effectue à l'aide d'un processus d'interférence entre deux faisceaux lumineux issus d'un laser.

Spanish

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Record 3 2002-04-16

English

Subject field(s)
  • Audiovisual Techniques and Equipment
CONT

Dual Discrete Optical Pick-Up. Sony developed a system which employs 2 separate pick-ups, one for CD and one for DVD playback, mounted on a single mechanism. Allowing accurate playback of DVD Video and CD Audio discs, it eliminates lens switching, reduces laser wear and extends laser life.

French

Domaine(s)
  • Audiovisuel (techniques et équipement)
DEF

Système présent dans certains lecteurs de DVD et permettant de lire aussi bien les CD audio que les DVD.

Spanish

Save record 3

Record 4 1990-05-17

English

Subject field(s)
  • Computer Graphics

French

Domaine(s)
  • Infographie

Spanish

Save record 4

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