Selective Visibility Motor Vehicle Projection System
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Solution Overview
Problem
Existing methods for displaying information outside a motor vehicle using projection technology are limited by the potential to irritate other road users and do not allow for selective visibility of information, as all projected information is visible to everyone, including irrelevant or sensitive details.
Innovation Solution
A method to generate projection objects outside a motor vehicle that can be made invisible to other road users without optical aids, allowing only the driver to see certain information, using techniques such as infrared or polarized light, while other road users can see essential information like a marked lane area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If projection objects are displayed outside the motor vehicle using visible light, then other road users can see the projected information, but unnecessary irritation to other road users occurs and sensitive information cannot be kept private
Solution Approach 1:
The patent applies local quality by making different parts of the projection system have different visibility properties. Specifically, the projection means can project both visible light components (for general road users) and infrared components (for driver-only viewing through optical aids). This allows certain information to be selectively visible to the driver while other information remains visible to all road users, thus resolving the contradiction between information privacy and public visibility.
Solution Approach 2:
The patent changes the wavelength parameter of the projected light from purely visible light to a combination of visible and infrared light. By projecting infrared components that are invisible to the naked eye but detectable by optical aids worn by the driver, the system enables selective information display. This parameter change allows the same projection system to serve dual purposes: providing public visibility for safety-critical information while maintaining privacy for sensitive navigation or planning information.
2Reliability
If all projected information is made visible to all road users, then safety information can be shared, but sensitive or irrelevant details are unnecessarily disclosed
Solution Approach 1:
The patent segments the projected information into different visibility layers. Critical safety information (such as lane markings, obstacle warnings, and traffic signals) is projected in the visible spectrum for all road users to see. Meanwhile, sensitive information (such as intended route, navigation instructions, or private communication data) is projected in the infrared spectrum, visible only to the driver through optical aids. This segmentation allows simultaneous achievement of safety information sharing and prevention of unwanted disclosure.
3Ease of operation
If projection means are used to mark the vehicle's future location, then the driver can plan the vehicle's path, but other road users are irritated by the projection
Solution Approach 1:
The patent introduces optical aids (such as infrared-transparent glasses or contact lenses) as an intermediary between the driver and the projection system. The projection means emits infrared light that is invisible to other road users but can be detected by the optical aids worn by the driver. This intermediary allows the driver to see detailed path planning information and future location markings without causing irritation or distraction to other road users, as they cannot see the infrared projections with the naked eye.
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
This approach enables selective visibility of projection objects, allowing drivers to plan their vehicle's path without sharing this information with other road users, reducing irritation and improving safety by clearly marking the vehicle's future location and space requirements.
Implementation Method 1
using techniques such as infrared or polarized light
Implementation Method 2
using techniques such as infrared or polarized light
Data Source
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AI summary
In a method for information display in which at least one projection object is generated at a projection point outside a motor vehicle by means of projection means provided on the motor vehicle, the generation of at least one generated projection object is carried out in such a way that at least one part of this projection object is essentially invisible to other road users without optical aids, and the at least one part of this projection object that is essentially invisible to other road users is made visible to the driver of the motor vehicle by means of optical aids.