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Projektionsvorrichtung zum scannenden Projizieren

Projection device for scanning projection of image on image field by radiation beam, has unit for modulating intensity of radiation beam, such that intensity of radiation beam changes in time interval
 
: Sandner, T.; Schenk, H.; Scholles, M.; Schwarzenberg, M.; Wolter, A.

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Frontpage ()

DE 102007011425 A: 20070308
DE 102007011425 A: 20070308
H04N0005
H04N0001
H04N0003
H01S0003
G02B0026
Deutsch
Patent, Elektronische Publikation
Fraunhofer IPMS ()

Abstract
(A1) Eine Projektionsvorrichtung zum scannenden Projizieren eines Bildes auf ein Bildfeld 22 mittels eines Strahlungsstrahls 18 umfasst eine Einrichtung 14 zum Modulieren einer Intensitaet des Strahlungsstrahls 18 derart, dass sich die Intensitaet des Strahlungsstrahls 18 in einem Zeitintervall TPixel aendert, waehrenddessen ein Abtastpunkt, auf den der Strahlungsstrahl 18 gerichtet ist, ein Pixel des Bildfeldes 22 ueberstreicht.

 

DE 102007011425 A1 UPAB: 20081008 NOVELTY - The projection device has unit (14) for modulating the intensity of a radiation beam (18), such that the intensity of the radiation beam changes in a time interval. A scanning point is provided, toward which the radiation beam is directed and a pixel of an image field (22) subtends. The unit is formed such that a temporary deflection of the intensity of the radiation beam has a local maximum within the time interval. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for scanning projection of a image on an image field by a radiation beam. USE - Projection device for scanning projection of a image on an image field by a radiation beam. ADVANTAGE - The scanning point is provided, toward which the radiation beam is directed and a pixel of an image field subtends, and the unit is formed such that a temporary deflection of the intensity of the radiation beam has a local maximum within the time interval, and thus ensures projection of qualitatively good pictures without the necessity of sensitive adjustments of light sources.

: http://publica.fraunhofer.de/dokumente/N-86260.html