IMAGE PROJECTION DEVICE

An image projection device includes a light source 12, a scanning unit 16 that scans an image light beam emitted from the light source, a projection mirror 20 that is disposed in front of an eye of a user, and converges a plurality of image light beams emitted in different directions from the scanni...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: MORINO, Seiji, SUZUKI, Makoto
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:An image projection device includes a light source 12, a scanning unit 16 that scans an image light beam emitted from the light source, a projection mirror 20 that is disposed in front of an eye of a user, and converges a plurality of image light beams emitted in different directions from the scanning unit by being scanned by the scanning unit at a convergence point 46 in the eye of the user and then projects the plurality of image light beams onto a retina to project an image onto the retina, a reflecting mirror 18 that converges the plurality of image light beams at a convergence point 44 before the projection mirror, a lens 22 that is provided between the projection mirror and the reflection mirror, converts each of the plurality of image light beams into a convergent light beam, condenses each of the plurality of image light beams at a condensing point before the projection mirror, and then causes each of the plurality of image light beams to enter the projection mirror as a diffusion light beam, a drive unit 24 configured to move the reflection mirror, a detection unit 52 configured to detect a direction in which a pupil of the user has moved, and a drive control unit 54 configured to control the drive unit to move the reflection mirror so that positions where the plurality of image light beams enter the optical member change in accordance with the direction in which the pupil has moved, which is detected by the detection unit.