CPC G02B 27/0172 (2013.01) [G02B 3/08 (2013.01); G02B 5/0289 (2013.01); G02B 5/1819 (2013.01); G02B 5/3025 (2013.01); G02B 27/0176 (2013.01); G02B 27/10 (2013.01); G02B 27/106 (2013.01); G02B 27/283 (2013.01); G02F 1/137 (2013.01); G02F 1/1334 (2013.01); H04N 9/3152 (2013.01); G02B 2027/0178 (2013.01); G02B 2027/0187 (2013.01); G02F 1/13345 (2021.01)] | 20 Claims |
1. A display device comprising:
an optical diffuser configured to:
receive image light;
diffuse the image light in response to receiving the image light;
output diffused image light having a same polarization as the received image light; and
receive ambient light and output at least a first portion of the ambient light without diffusing the first portion of the ambient light; and
an optical assembly comprising:
a substrate having a first surface and a second surface opposite to and substantially parallel with the first surface;
a reflector coupled to the substrate; and
a beam splitter coupled to the substrate, wherein the optical assembly is configured to:
transmit the diffused image light at a first optical power by reflecting the diffused image light at the reflector and at the beam splitter; and
transmit a second portion of the ambient light out of the first portion of the ambient light through the optical assembly without reflection at the reflector or the beam splitter such that the second portion of the ambient light is transmitted through the optical assembly at a second optical power that is less than the first optical power.
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