Augmented reality display having a thin optical combiner
Provided is an augmented reality display with a thin optical combiner, and the augmented reality display with a thin optical combiner provided to have an overall shape wearable by a user includes an optical combiner part provided in the form of a lens located in front of a user's eyes to receive a virtual image light wave and combine an external scene and a virtual image, wherein the optical combiner part includes a plurality of glass substrates, and a polarization-dependent lens inserted obliquely in a diagonal direction between the plurality of glass substrates to transmit optically modulated virtual image light waves in a direction toward the eyes.
1. An augmented reality display having an optical combiner and configured to be viewed by eyes of a user, the augmented reality display comprising:
an optical combiner part configured to receive virtual image light waves and combine an external scene and a virtual image,
wherein the optical combiner part comprises:
a plurality of glass substrates; and
a polarization-dependent lens disposed obliquely in a diagonal direction between the plurality of glass substrates to transmit optically modulated virtual image light waves in a direction toward the eyes of the user, wherein the optical combiner part further comprises:
a light distributor configured to distribute the virtual image light waves to a spatial light modulator (SLM); and
the spatial light modulator (SLM) configured to optically modulate the virtual image light waves and transmit the optically modulated virtual image light waves to the polarization-dependent lens.
2. The augmented reality display of claim 1 , wherein the polarization-dependent lens is a reflective polarization-dependent lens or a transmissive polarization-dependent lens.
3. The augmented reality display of claim 1 , wherein the SLM comprises:
an optical fiber configured to transmit the virtual image light waves;
a collimator configured to convert the virtual image light waves transmitted from the optical fiber to a parallel light source; and
a polarization filter configured to receive the parallel light source generated by the collimator, transmit a wavelength in a specific state in a direction toward the light distributor, and block other wavelengths.
4. The augmented reality display of claim 1 , wherein an angle of the polarization-dependent lens is variable with respect to a middle of the polarization-dependent lens.
5. The augmented reality display of claim 1 , further comprising a user modification module configured to vary a position and an angle of the optical combiner part according to a position of the eyes of the user,
wherein the polarization-dependent lens comprises a pair of lenses, and the user modification module comprises:
an interval adjustment part configured to adjust an interval between the polarization-dependent lenses; and
an angle adjustment part disposed at both ends of a coupling part between the polarization-dependent lenses and configured to adjust an angle of the polarization-dependent lenses.
6. The augmented reality display of claim 1 , further comprising a user terminal showing a screen viewed by the user using the augmented reality display.
7. The augmented reality display of claim 1 , further comprising a variable shield disposed in a direction toward a face of the user to block interference light which penetrates at a side surface between the augmented reality display and the face of the user.
8. An augmented reality display having an optical combiner and configured to be viewed by eyes of a user, the augmented reality display comprising:
an optical combiner part configured to receive virtual image light waves and combine an external scene and a virtual image; and
a variable shield disposed in a direction toward a face of the user to block interference light which penetrates at a side surface between the augmented reality display and the face of the user,
wherein the optical combiner part comprises:
a plurality of glass substrates; and
a polarization-dependent lens disposed obliquely in a diagonal direction between the plurality of glass substrates to transmit optically modulated virtual image light waves in a direction toward the eyes of the user.
9. The augmented reality display of claim 8 , wherein the polarization-dependent lens is a reflective polarization-dependent lens or a transmissive polarization-dependent lens.
10. The augmented reality display of claim 8 , wherein the optical combiner part further comprises:
a light distributor configured to distribute the virtual image light waves to a spatial light modulator (SLM); and
the spatial light modulator (SLM) configured to optically modulate the virtual image light waves and transmit the optically modulated virtual image light waves to the polarization-dependent lens, and
wherein the SLM comprises:
an optical fiber configured to transmit the virtual image light waves;
a collimator configured to convert the virtual image light waves transmitted from the optical fiber to a parallel light source; and
a polarization filter configured to receive the parallel light source generated by the collimator, transmit a wavelength in a specific state in a direction toward the light distributor, and block other wavelengths.
11. The augmented reality display of claim 8 , wherein an angle of the polarization-dependent lens is variable with respect to a middle of the polarization-dependent lens.
12. The augmented reality display of claim 8 , further comprising a user modification module configured to vary a position and an angle of the optical combiner part according to a position of the eyes of the user,
wherein the polarization-dependent lens comprises a pair of lenses, and the user modification module comprises:
an interval adjustment part configured to adjust an interval between the polarization-dependent lenses; and
an angle adjustment part disposed at both ends of a coupling part between the polarization-dependent lenses and configured to adjust an angle of the polarization-dependent lenses.
13. The augmented reality display of claim 8 , further comprising a user terminal showing a screen viewed by the user using the augmented reality display.
14. An augmented reality display having an optical combiner and configured to be viewed by eyes of a user, the augmented reality display comprising:
an optical combiner part configured to receive virtual image light waves and combine an external scene and a virtual image,
wherein the optical combiner part comprises:
a plurality of glass substrates; and
a polarization-dependent lens disposed obliquely in a diagonal direction between the plurality of glass substrates to transmit optically modulated virtual image light waves in a direction toward the eyes of the user, wherein an angle of the polarization-dependent lens is variable with respect to a middle of the polarization-dependent lens.