Abstract
We demonstrate a chip-scale autostereoscopic image projection system that utilizes a system of multiple integrated visible light optical phased arrays to reconstruct virtual light fields. Each phased array in this system serves as a micro-projector that illuminates the desired virtual object from a different angle. This recreates the virtual object in space with continuous parallax observable by the human visual system. In this work, a static virtual image with horizontal parallax and a viewing angle of 5° was generated with an array of 16 integrated silicon nitride phased arrays with a 635 nm operating wavelength. Each phased array is comprised of optical antennas with passively encoded relative phases. The presented device demonstrates the promise of integrated visible light phased array platforms for implementing projection-based autostereoscopic displays in compact chip-scale platforms suitable for mobile devices.
© 2018 Optical Society of America
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