Light-beam digital projection video motor

H - Electricity – 04 – N

Patent

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Details

H04N 3/08 (2006.01) G02B 5/09 (2006.01)

Patent

CA 2593442

The invention concerns a system for projecting a digital video image sequence using a light beam capable of being generated by a source (1) on a 3D swivel joint (2), of low/medium power laser type or white light laser type. The system comprises a shutter microdisc (4) with slots (3), two rotary optical discs (5) and (7) digitally interlocked on an axis (12) with 3D swivel joints (6), generating vertical and horizontal scanning of the screen, the whole assembly terminated by a rectangular shutter (8). The display is achieved by successive reflections of the light beam on microscopic reflecting facets arranged on the surface of the discs (5) and (7).

L'invention concerne un système permettant de projeter une séquence d'image vidéo numérique à l'aide d'un faisceau lumineux pouvant être généré par une source (1) sur rotule 3D (2) , de type laser de faible/moyenne puissance ou de type lumière blanche. Le système comporte un micro-disque obturateur (4) avec fentes (3) , deu disques optiques rotatifs (5) et (7) asservis numériquement sur un axe (12) avec rotules 3D (S) , générant le balayage vertical et horizontal de l'écran, le tout terminé par un obturateur rectangulaire (8) . L'affichage est réalisé par réflexions successives du faisceau lumineux sur de facettes réfléchissantes microscopiques et disposées sur la surface des disques (5) et (7) .

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