Multi-Vantage Point Light-Field Display Using Segmented Apertures
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Solution Overview
Problem
Traditional displays for advertising events or entertainment, such as movie posters and cardboard cutouts, are limited to a single viewpoint and two-dimensional representation, failing to effectively engage viewers from different angles without the need for special 3D glasses.
Innovation Solution
A multi-vantage point light-field display system using pixel projection components with apertures and light guides, allowing images to be projected at multiple angles, creating a three-dimensional effect visible from various viewpoints without the need for 3D glasses, by using a display driver and data store to activate light emitting elements and create images visible only from specific target vantage points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional displays use single viewpoint design, then manufacturing is simple, but viewing effectiveness is limited
Solution Approach 1:
The display is segmented into multiple independent light field modules, each capable of projecting images from different viewpoints. Each module contains its own array of light sources and corresponding apertures, allowing the system to present multiple perspectives simultaneously without requiring a completely complex integrated structure.
Solution Approach 2:
The display transitions from traditional two-dimensional flat surfaces to three-dimensional light field projection by adding the depth dimension through layered aperture structures. Multiple layers of apertures at different depths create volumetric light paths that enable viewing from multiple angles, effectively adding a spatial dimension to the display.
2Shape
If displays use multiple layers from scene, then depth perception is improved, but each layer remains two dimensional
Solution Approach 1:
The display system dynamically redirects light paths based on viewer position. As viewers move to different locations, the optical system adjusts which light sources are visible through which apertures, enabling the same physical structure to present different effective images from different viewpoints without requiring multiple static layers.
Solution Approach 2:
The aperture layers act as optical intermediaries between the light sources and viewers. These aperture layers selectively transmit or block light from specific sources based on the viewer's position, effectively mediating the connection between the fixed light field array and the moving viewer to create the illusion of multiple perspectives.
3Adaptability or versatility
If displays are designed for single viewpoint, then light transmission is simple, but multi-angle viewing is not possible
Solution Approach 1:
The optical system is segmented into discrete light sources, aperture layers, and viewing zones. Each light source is optically connected to specific apertures in a segmented pattern, where the nth light source connects to the nth aperture in each layer. This segmentation simplifies the optical connectivity logic while enabling multi-angle viewing through systematic arrangement.
4Reliability
If axial length of aperture is increased, then light transmission control is improved, but manufacturing precision requirements increase
Solution Approach 1:
The aperture axial length is designed to be excessively long relative to the aperture diameter, creating a high aspect ratio that strongly controls light transmission direction. This excessive axial length ensures reliable light guidance even with moderate manufacturing tolerances, as the long axial dimension dominates the light path control regardless of smaller dimensional variations.
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
Enables a complete three-dimensional depiction of scenes, allowing viewers to experience different perspectives as they move, enhancing the engagement and effectiveness of promotional displays for events and entertainment services across a wide field of view.
Implementation Method 1
a distal end of the first light guide may be oriented to transmit the first light transmission through a first aperture of the plurality of apertures, such that the light is directed to a first vantage point
Data Source
AI summary
A pixel projection component for projecting a multi-vantage point light-field includes a distal layer with a plurality of apertures disposed therein, each of the plurality of apertures traversing the distal layer between a convex outer surface and a concave inner surface, and an intermediate layer comprising a plurality of light guides, the intermediate layer being mechanically coupled to the distal layer such that a proximal end of each light guide of the plurality of light guides is oriented to accept light transmissions from a corresponding light source and a distal end of each light guide is oriented to transmit the light transmission through a corresponding aperture of the plurality of apertures, such that the light is directed to targeted vantage points corresponding to the corresponding aperture, and causing different light transmissions to be transmitted to different vantage points.