Samsung and POSTECH Bring Thin AR Optics Into Daylight
A research waveguide combines a slim optical stack with outdoor visibility, addressing an obstacle to everyday displays.
Published November 12, 2026Briefs / Frontier Tech / Human Augmentation
Samsung Research and Pohang University of Science and Technology (POSTECH) have demonstrated thin optics that keep projected images visible outdoors. Their augmented-reality prototype uses a two-layer optical stack 1.5 millimeters thick. Published in Nature on November 11, the work addresses a practical problem for glasses that place information in a wearer’s view: the image must remain visible amid bright daylight while the lens also lets the wearer see the surroundings.
A waveguide carries projected light across the lens and directs it toward the eye. The researchers use interwoven nanoscale surface patterns, varied across the waveguide, to control that light. The prototype provides a 30-degree field of view and an eight-by-eight-millimeter “eyebox”—the area in which the eye can move while continuing to receive the image.
The authors report average luminance efficiency of 1,938 nits per lumen, reaching 4,225 at its maximum. This measures the display brightness obtained from the incoming light. Battery endurance depends on the light source, computing hardware and the rest of the device. The demonstrated advance is in the optics; sustained brightness, heat, fit, battery life and repeatable manufacturing remain tests for a finished wearable.