Open AccessLiDAR-derived digital holograms for automotive head-up displays
Author(s) -
Jana Skirnewskaja,
Yunuen Montelongo,
Phil Wilkes,
Timothy D. Wilkinson
Publication year - 2021
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.420740
Subject(s) - holography , optics , fresnel lens , lidar , lens (geology) , spatial light modulator , focal length , laser , depth of field , digital micromirror device , holographic display , field of view , digital holography , computer science , physics
A holographic automotive head-up display was developed to project 2D and 3D ultra-high definition (UHD) images using LiDAR data in the driver's field of view. The LiDAR data was collected with a 3D terrestrial laser scanner and was converted to computer-generated holograms (CGHs). The reconstructions were obtained with a HeNe laser and a UHD spatial light modulator with a panel resolution of 3840×2160 px for replay field projections. By decreasing the focal distance of the CGHs, the zero-order spot was diffused into the holographic replay field image. 3D holograms were observed floating as a ghost image at a variable focal distance with a digital Fresnel lens into the CGH and a concave lens.