Anisotropic holographic screen for wide field-of-view augmented-reality system

Seokil Moon; Changwon Jang; Chang-Kun Lee; Geeyoung Sung; Hong-Seok Lee; Byoungho Lee

doi:10.1117/12.2508177

1 March 2019 Anisotropic holographic screen for wide field-of-view augmented-reality system

Seokil Moon, Changwon Jang, Chang-Kun Lee, Geeyoung Sung, Hong-Seok Lee, Byoungho Lee

Proceedings Volume 10942, Advances in Display Technologies IX; 1094210 (2019) https://doi.org/10.1117/12.2508177
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

Recently, augmented reality (AR) systems using holographic optical elements are getting the limelight. The holographic diffuser can be used as a screen in AR systems because it only diffuses incident light in a certain angle. To achieve a wide field-of-view (FOV), a diffusing angle of the screen should be sufficiently large. However, in the case of the holographic diffuser, it is difficult to achieve a high transmittance when the diffusing angle of the employed diffuser is large. In other words, by using conventional holographic screens, it is difficult to achieve a high transmittance and a wide FOV simultaneously. In this work, we propose an anisotropic holographic diffuser providing a wide FOV with relatively small diffusing angle by adopting a convex lens in the recording process. Furthermore, in the last section, a scheme of AR near-eye display system is suggested by using the proposed holographic screen and a special eye piece consisted of geometric phase lens.

Citation Download Citation

Seokil Moon, Changwon Jang, Chang-Kun Lee, Geeyoung Sung, Hong-Seok Lee, and Byoungho Lee "Anisotropic holographic screen for wide field-of-view augmented-reality system", Proc. SPIE 10942, Advances in Display Technologies IX, 1094210 (1 March 2019); https://doi.org/10.1117/12.2508177

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