HOLOGRAPHIC PROJECTION DEVICE

HOLOGRAPHIC PROJECTION DEVICE

A holographic projection device includes a first volume hologram that deflects light from a useful light source to generate an image. Light which does not originate from the useful light source and strikes the first volume hologram at a predetermined solid angle deflects such that it is perceptible...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: ZHONG, Yi, ERLER, Christoph, KLEINDIENST, Roman, KUEHL, Siemen, JUNGHANS, Marc
Format: Patent
Sprache:eng
Schlagworte:
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHIC PROCESSES OR APPARATUS
HOLOGRAPHY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHOTOGRAPHY
PHYSICS
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Beschreibung
Zusammenfassung:A holographic projection device includes a first volume hologram that deflects light from a useful light source to generate an image. Light which does not originate from the useful light source and strikes the first volume hologram at a predetermined solid angle deflects such that it is perceptible as unwanted interfering light. The projection device also includes a holographic filter which deflects the light which does not originate from the useful light source and would strike the first volume hologram at the predetermined solid angle, before the light strikes the first volume hologram, such that it is not perceptible as unwanted interfering light, and/or deflects the light which does not originate from the useful light source and strikes the first volume hologram at the predetermined solid angle, after the deflection by the first volume hologram, such that it is not perceptible as unwanted interfering light.