Patent ID: 11914143
Assignee: nan
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 4:
5. An augmented reality device, comprising:
an image output unit disposed at a preset angle from a horizontal direction to output an augmented reality image of a preset polarization direction;
a holographic optical element reflecting light emitted from the image output unit;
a polarization reflection film reflecting light of the preset polarization direction and transmitting other light than the light of the preset polarization direction; and
an optical component disposed on a light path of an image reflected by the holographic optical element, the optical component having a preset refractive index and a preset shape, wherein the polarization reflection film is applied on a first surface of the optical component which is positioned farther away from the image output unit so that real-world light with a non-polarization direction strike the polarization reflection film so that light rays with the preset polarization direction are reflected while light rays with the other polarization directions pass through the polarization reflection film, and the augmented reality image with the preset polarization direction is fully reflected by the polarization reflection film, wherein
the polarization reflection film reflects a light component with the preset polarization direction of external light entering the optical component from an outside of the augmented reality device and transmits remaining light components of the external light to a user's eye, wherein
the optical component applied with the polarization reflection film is disposed at an angle at which the augmented reality image on the light path is reflected by the polarization reflection film to the user's eye, and
wherein the optical component changes the light path so that the user who cannot wholly recognize the real-world light or the augmented reality image can wholly recognize the real-world light or the augmented reality image and the optical component is implemented as a lens of glasses that the user actually wears or a lens with the same optical power as the lens of the glasses, thereby allowing the user to watch augmented reality images with wearing the glasses or to watch augmented reality images without wearing the glasses.