High-Resolution Headlight Projection With Perspective Correction
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Solution Overview
Problem
Existing systems for projecting informative content outside a motor vehicle are unsatisfactorily solved, requiring additional projectors and failing to provide perspective-correct projections.
Innovation Solution
A system utilizing a high-resolution headlight as a projection device, equipped with an environmental sensor system and controller, adapts content based on detected projection surface positions and qualities to ensure perspective-correct projection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional projectors are used to project informative content outside the motor vehicle, then the projection capability is improved, but the device complexity and cost increase
Solution Approach 1:
The headlight system is designed to perform both its primary function of illumination and the secondary function of projecting informative content. The control device enables the headlight to switch between providing illumination and projecting images, eliminating the need for separate projection devices while maintaining both functionalities within a single system.
Solution Approach 2:
The patent combines the projection function with the existing headlight system by integrating a modulator in the optical path. This merging approach consolidates multiple functions (illumination and projection) into a single device, reducing overall system complexity and eliminating the need for additional standalone projectors.
2Adaptability or versatility
If standard projectors are used for projection, then the projection function is achieved, but the manufacturing cost increases
Solution Approach 1:
The headlight system is designed to perform both its primary function of illumination and the secondary function of projecting informative content. The control device enables the headlight to switch between providing illumination and projecting images, eliminating the need for separate projection devices while maintaining both functionalities within a single system.
Solution Approach 2:
The headlight system serves itself by utilizing its own optical components (light source, optics, and modulator) to perform both illumination and projection functions. This self-service approach eliminates the need for external projection equipment, thereby reducing manufacturing costs and simplifying the overall system architecture.
3Device complexity
If projection is performed without perspective adaptation, then the projection process is simplified, but the projection accuracy deteriorates
Solution Approach 1:
The control device receives information about the projection surface position and uses this feedback to adaptively adjust the projected content. By continuously monitoring the surface characteristics and modifying the projection accordingly, the system maintains high projection accuracy without requiring complex manual calibration or pre-programming.
Solution Approach 2:
The projection system dynamically adapts to changing projection conditions by adjusting the projected content based on real-time surface position detection. This dynamic adaptation allows the system to maintain projection accuracy across varying surfaces and angles without requiring a fixed, complex mechanical adjustment mechanism.
4Adaptability or versatility
If the projection system uses a dedicated projector, then the projection quality is improved, but the space requirement increases
Solution Approach 1:
The patent combines the projection function with the existing headlight system by integrating a modulator in the optical path. This merging approach consolidates multiple functions (illumination and projection) into a single device, reducing overall system complexity and eliminating the need for additional standalone projectors.
Solution Approach 2:
The headlight system is designed to perform both its primary function of illumination and the secondary function of projecting informative content. The control device enables the headlight to switch between providing illumination and projecting images, eliminating the need for separate projection devices while maintaining both functionalities within a single system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Eliminates the need for additional projectors, reducing costs and space, while ensuring projected content is accurately perceived from the intended viewer's perspective, even on uneven surfaces.
Implementation Method 1
at least one projection device for projecting the content, wherein the at least one projection device is a high-resolution headlight
Implementation Method 2
The environmental sensor system is designed to detect a position of a projection surface outside the motor vehicle
Data Source
Figure 1
Figure 2a~2b
Figure 3a~3b
AI summary
The invention relates to a system (1) for projecting informative content for a motor vehicle (50), comprising an environment sensor system (51), a controller (2) and at least one projection device (3) for projecting content (11), wherein the environment sensor system (51) is designed to detect a position (10) of a projection surface (20) outside the motor vehicle (50), and wherein the controller (2) is designed to receive content (11) to be projected and to adapt it on the basis of the detected position (10) such that said content, when projected onto the projection surface (20), can be perceived with the correct perspective from the point of view of a predefined observer, and wherein the controller (2) is further designed to actuate the at least one projection device (3) on the basis of the adapted content (12), the at least one projection device (3) being a high-resolution headlamp (52). Furthermore, the invention relates to an associated method.