The present invention is compact and inexpensive, has good light efficiency, and enables a display image having a plurality of display distances to be displayed. A display (21) emits projection light (L) for displaying a display image (M) at a predetermined position, and an image formation position adjusting mirror (23) receives the projection light (L) emitted from the display (21), performs conversion into a plurality of first projection light (L1) and second projection light (L2) that have different image formation distances by changing the image formation distance of the projection light (L) that is at least part of the incident projection light (L), and reflects the first projection light and the second projection light to project the first projection light (L1) and the second projection light (L2) onto a first screen (30) and a second screen (40).
PROJECTION DEVICE AND HEAD-UP DISPLAY DEVICE
PROJEKTIONSVORRICHTUNG UND HEAD-UP-ANZEIGEVORRICHTUNG
DISPOSITIF DE PROJECTION ET DISPOSITIF D'AFFICHAGE TÊTE HAUTE
2019-02-27
Patent
Electronic Resource
English
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
Projection assembly, projection device and head-up display device
European Patent Office | 2025
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