Optical design of automotive augmented reality 3D head-up display with light-field rendering

Automotive Augmented Reality Head-Up Displays

“…To reduce ghost images, a PVB film in the two glass layers on the windshield is modified into a wedge; from the traditional equal thickness, it is changed to be thick on the top and thin on the bottom, showing a wedge angle. After the light refracted through the first surface of the glass touches the second surface of the windshield glass, the reflection height and angle also change, making the two virtual images formed by the incident light on the first and second surfaces coincide, thus reducing the phenomenon of double shadow [47]. Moreover, utilizing a partial transparent Fresnel reflector as the combiner could also eliminate ghost images with the Fresnel pattern [48], since it can prevent a ghost image from reaching the eyes of drivers (Figure 5b).…”

How I Met Your V2X Sensor Data: Analysis of Projection-Based Light Field Visualization for Vehicle-to-Everything Communication Protocols and Use Cases

“…Additionally, it is important to highlight that the solutions addressed by this paper do not rely on eye-tracking. For example, the work of Lee et al [ 19 ] proposes a light-field-based 3D HUD that uses eye-tracking. Furthermore, there are immersive HMIs in the scientific literature that show promise for the automotive context, such as the light field prototype of Duarte et al [ 22 ], yet are not designed particularly for the investigated utilization.…”

“…According to the best knowledge of the authors, this is the first work to consider V2X sensor data in the context of automotive light field visualization. Related research efforts study the hardware-in-the-loop simulation of autonomous vehicles [ 12 ], light field imaging for autonomous underwater vehicles (AUVs) [ 13 , 14 ], zero-latency motion visualization [ 15 ], and AR [ 16 , 17 , 18 , 19 , 20 ] automotive head-up displays (HUDs). Light field HUDs and windshields (or windscreens) are addressed by several works [ 21 , 22 , 23 , 24 , 25 , 26 ]; however, none of them study V2X sensor data.…”

Simulation of display thermal deformation and error analysis in high precision reverse Hartmann test

“…Currently, with the requirement of high resolution and precision in modern optical systems, such as James Webb Space Telescope (JWST) which was launched in 2021, Extreme Ultraviolet Lithography (EUL) and Head-Up Display (HUD) [1][2][3], the complexity and quantity of optical components are also increasing. In the processing of complex optical surfaces, frequent measurement of the surface shape of the workpiece is required.…”