Patent ID: 11953683
Assignee: SEEREAL TECHNOLOGIES S.A.
Field: Optics (Instruments)
Classification: CPC G  H | IPC F  G  H

Claim 16:
17. A head-mounted display device comprising:
a position detector configured to detect a position of a pupil and a position of a further pupil of a wearer of the head-mounted display device;
an illumination device and a spatial light modulator configured to inject light into a wave guide to generate a virtual image based on the position of the pupil;
a further illumination device and a further spatial light modulator configured to inject light into a further wave guide to generate a further virtual image based on the position of the further pupil;
at least two diffraction gratings, crossed in their direction of deflection, comprising:
a diffraction grating configured to increase a horizontal field of view of the virtual images; and
a further diffraction grating configured to increase a vertical field of view of the virtual images.