Projection system
The projection system addresses energy inefficiency and limited eyebox issues in head-up displays by using a retroreflector to redirect light, improving image quality and viewer comfort while reducing distractions.
WO2026041444A1 Publication Date: 2026-02-26CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH
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Patent Information
- Application Number
- PCT/EP2025/072758
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-08-22
- Filing Date
- 2025-08-07
- Publication Date
- 2026-02-26
AI Technical Summary
Technical Problem
Current head-up display systems in vehicles face challenges with energy inefficiency, speckle patterns, and limited eyebox size, leading to reduced image quality and viewer discomfort due to restricted seating positions.
Method used
A projection system utilizing a retroreflector that redirects light within a specific solid angle range, combined with a projector positioned at the upper edge of the windshield, allowing for a larger eyebox and energy-efficient image projection.
Benefits of technology
Enhances image quality by reducing speckle patterns and increasing the eyebox size, providing a more comfortable viewing experience with reduced energy consumption and improved safety by minimizing distractions.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention relates to a projection system having - a projector (22, 22'); and - a retroreflector (23), wherein the projector (22, 22') illuminates the retroreflector (23) and the retroreflector (23) reflects in a certain solid angle range.
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