A holographic display system for a motor vehicle includes a coherent light source for generating a beam of coherent light and a spatial light modulator (SLM) having a two-dimensional pixel array, which is encoded with a hologram for modulating a phase of the coherent light. The SLM generates a first diffracted beam associated with a main image and a second diffracted beam associated with a conjugate image, where the first and second diffracted beams are angularly spaced from one another by a first angle. The system further includes an optical component for angularly spacing the first and second diffracted beams from one another by a second angle that is larger than the first angle. The system further includes a display surface receiving the first diffracted beam from the optical component to display the main image, with the display surface being free of the second diffracted beam.
Holographic display system with conjugate image removal for a motor vehicle
2023-09-19
Patent
Electronic Resource
English
Holographic display element, holographic display glass and vehicle
European Patent Office | 2024
|Holographic display system for a motor vehicle with real-time reduction of graphics speckle noise
European Patent Office | 2024
|