Optical See-through 2D/3D Compatible Display Using Variable-Focus Lens and Multiplexed Holographic Optical Elements

Autor: Qinglin Ji, Huan Deng, Hanle Zhang, Wenhao Jiang, Feiyan Zhong, Fengbin Rao
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Photonics, Vol 8, Iss 8, p 297 (2021)
Druh dokumentu: article
ISSN: 2304-6732
DOI: 10.3390/photonics8080297
Popis: An optical see-through two-dimensional (2D)/three-dimensional (3D) compatible display using variable-focus lens and multiplexed holographic optical elements (MHOE) is presented. It mainly consists of a MHOE, a variable-focus lens and a projection display device. The customized MHOE, by using the angular multiplexing technology of volumetric holographic grating, records the scattering wavefront and spherical wavefront array required for 2D/3D compatible display. In particular, we proposed a feasible method to switch the 2D and 3D display modes by using a variable-focus lens in the reconstruction process. The proposed system solves the problem of bulky volume, and makes the MHOE more efficient to use. Based on the requirements of 2D and 3D displays, we calculated the liquid pumping volume of the variable-focus lens under two kinds of diopters.
Databáze: Directory of Open Access Journals