Polarization-Multiplexed 3D Floating Display for Shared Vehicle Viewing
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Solution Overview
Problem
Current vehicle entertainment systems lack the capability to provide a centrally located floating three-dimensional image viewable by all passengers, limiting the immersive and shared viewing experience.
Innovation Solution
A system comprising a display mounted on the vehicle's roof, a polarization rotator, and a reflector unit with beam splitters, which projects and polarizes images to create a multiplexed image perceived as floating centrally by all passengers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single screen is mounted within the vehicle for viewing by passengers, then the system achieves its intended purpose of providing entertainment, but it cannot provide a centrally located floating three-dimensional image viewable by all passengers simultaneously
Solution Approach 1:
The system segments the image content into multiple perspectives (first perspective image and second perspective image) that are displayed simultaneously on the same screen. Each passenger receives a customized perspective through individual beam splitters, enabling a shared three-dimensional viewing experience without requiring separate screens for each passenger.
Solution Approach 2:
Beam splitters serve as intermediary optical elements between the display screen and each passenger. These beam splitters redirect light paths to create the illusion of floating three-dimensional images at different locations, allowing multiple passengers to view customized perspectives simultaneously from a single display source.
2Ease of operation
If multiple individual screens are provided for each passenger, then each passenger has personal viewing capability, but the system cannot create a centrally located floating image shared by all passengers
Solution Approach 1:
A single display screen performs multiple functions by simultaneously displaying multiple perspective images that serve different passengers. The screen acts as a universal source that, combined with beam splitters, provides personalized viewing experiences to multiple passengers without requiring individual screens for each person.
3Adaptability or versatility
If a floating three-dimensional image display system is implemented, then a shared central viewing experience is achieved, but the device complexity increases significantly
Solution Approach 1:
The system employs controllable beam splitters that can dynamically adjust their optical properties to redirect light paths. This dynamic control allows the system to flexibly configure multiple viewing perspectives and adjust the floating image positions, enabling adaptability while managing complexity through intelligent control rather than fixed complex optics.
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
The system effectively generates a shared, centrally located floating three-dimensional image experience for all passengers, enhancing the immersive and interactive nature of in-vehicle entertainment.
Implementation Method 1
a polarization rotator positioned immediately in front of the display, the polarization rotator selectably actuatable to rotate the polarization of an image projected from the display through the polarization rotator to one of S-polarization and P-polarization
Implementation Method 2
a reflector unit adapted to reflect S-polarized images to at least one first beam splitter, and further adapted to reflect P-polarized images to at least one second beam splitter
Implementation Method 3
each of the at least one first beam splitter and the at least one second beam splitter individually associated with one of the plurality of passengers, and adapted to receive one of the plurality of images from the display and to reflect the one of the plurality of images to the associated one of the plurality of passengers
Data Source
AI summary
A system for generating an image for passengers in a vehicle includes a display adapted to project an image, a polarization rotator actuatable to rotate the polarization of an image to one of S-polarization and P-polarization, a reflector unit adapted to reflect S-polarized images to a first beam splitter, and to reflect P-polarized images to a second beam splitter, each of the first and second beam splitters adapted to receive an image and to reflect the image to an associated passenger, and a controller in communication with the display and the polarization rotator, the controller adapted to simultaneously actuate the display to alternate between projecting a first image and a second image, actuate the polarization rotator to alternate between rotating the polarization of an image to S-polarization and P-polarization, and synchronize the display and the polarization rotator.