CUED Publications database

Head-up display with dynamic depth-variable viewing effect

Li, K and Geng, Y and Yöntem, AÖ and Chu, D and Meijering, V and Dias, E and Skrypchuk, L (2020) Head-up display with dynamic depth-variable viewing effect. Optik, 221. ISSN 0030-4026

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Abstract

© 2020 Head-Up Displays (HUDs) can reduce duration and frequency of drivers looking away from traffic scenes, but information contents of different importance are usually displayed at the same time in contemporary HUD models. Such configurations increase the time that a driver searches for critical information and it is essential that the said information can quickly attract driver's attention without affecting his focus on the road. We introduce an alternative approach of displaying critical information with a variable depth in a designated local area of a HUD image. The variations are engineered to create a dynamic pop-up effect for hazard warnings, such as a car exceeding the speed-limit or approaching certain road signs. The image depth of the corresponding area is designed to vary by about half a metre and the image size by 1.4 times for a natural viewing experience, using an off-the-shelf liquid lens with electrically tuneable focus depths. The HUD optics are adjusted to have an extended eye-box to accommodate driver's head movement and a uniform image brightness across the eye-box.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Photonics
Depositing User: Cron Job
Date Deposited: 25 Jul 2020 20:12
Last Modified: 25 Feb 2021 07:00
DOI: 10.1016/j.ijleo.2020.165319