Compact full-color augmented reality near-eye display using freeform optics and a holographic optical combiner

We develop a compact full-color augmented reality near-eye display system with a multicolor holographic optical combiner and a freeform relay system. The digital image is produced by a full-color micro organic light-emitting diode (Micro-OLED) display module. The freeform relay system includes four...

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Bibliographic Details
Published in:Optics express 2022-08, Vol.30 (18), p.31714-31727
Main Authors: Shu, Tian, Hu, Guangyin, Wu, Rengmao, Li, Haifeng, Zhang, Zhuopeng, Liu, Xu
Format: Article
Language:English
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Summary:We develop a compact full-color augmented reality near-eye display system with a multicolor holographic optical combiner and a freeform relay system. The digital image is produced by a full-color micro organic light-emitting diode (Micro-OLED) display module. The freeform relay system includes four freeform optics and a holographic optical mirror, which are employed to correct both the monochromatic and chromatic aberrations caused by the holographic optical combiner. The two multicolor holographic mirrors have a three-layer laminated structure and are delicately fabricated to yield an improved diffractive efficiency and a reduced efficiency difference for red, green, and blue colors. The high degrees of freedom of freeform optics, and the thin and light nature of the holographic optical combiner yield a compact form factor near-eye display system with a diagonal field of view (FOV) of 20° and the eye-box of 5 mm × 5 mm. Two prototypes are built to demonstrate the feasibility of the proposed display system.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.465842