Immersive Display Glare Rendering With Dynamic Optical Positioning
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Solution Overview
Problem
Bright light sources can cause glare that inhibits human vision and distracts users, affecting their ability to perform tasks, and existing technologies do not effectively manage glare in immersive display environments.
Innovation Solution
A system that combines a display and a glare emitter to superimpose glare content onto the field of view, allowing the glare content to be rendered at higher luminance than the display content, with controlled positioning and movement across the field of view, and includes an eye sensor for user-specific optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a display system is designed to provide high luminance for immersive content, then user immersion is improved, but glare is generated that inhibits vision and distracts users
Solution Approach 1:
The display system is segmented into two independent subsystems: a display configured to render display content at a first peak luminance, and a glare system configured to render glare content at a second peak luminance. This segmentation allows each subsystem to be optimized for its specific function without compromise - the display for immersive content and the glare system for controlling glare effects, thereby resolving the contradiction between achieving high luminance for immersion and preventing harmful glare.
Solution Approach 2:
A beam combiner acts as an intermediary optical element that merges the light paths from the display and the glare system. The beam combiner allows both the display content and glare content to be superimposed and presented to the user simultaneously, enabling the system to deliver both high luminance immersive content and controlled glare effects without requiring separate viewing paths, thus maintaining immersion while managing glare.
2Adaptability or versatility
If glare content is rendered at high luminance to simulate realistic light sources, then realism and immersion are improved, but the glare becomes more distracting and harmful to vision
Solution Approach 1:
The glare system is configured to dynamically adjust the luminance of glare content independently from the display content. The controller can vary the second peak luminance of the glare system in real-time based on the displayed scene requirements, allowing the system to render realistic high-luminance glare effects when needed for immersion while reducing or eliminating glare when it would be distracting, thereby resolving the contradiction between realism and visual comfort.
Solution Approach 2:
The system applies different luminance qualities to different parts of the visual field by rendering glare content at specific locations independent of the main display content. This allows high luminance to be concentrated only where realistic glare effects are needed (such as at the position of virtual light sources) while keeping other areas at comfortable viewing levels, thus achieving realism without excessive visual distraction.
3Device complexity
If a single display system is used to render both content and glare effects, then device complexity is reduced, but the ability to independently control luminance and positioning is limited
Solution Approach 1:
The display and glare system are merged into a single integrated apparatus that shares common optical path elements including the beam combiner and near-eye display optics. This merging maintains relatively simple device structure while the independent configuration of the glare system (with separate light source, optics, and control) provides enhanced adaptability for luminance and positioning control, resolving the contradiction between simplicity and versatility.
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
Enhances user immersion by effectively managing glare, enabling precise control over glare positioning and luminance to improve task performance and facilitate clinical vision testing and simulation activities.
Implementation Method 1
a glare system configured to render glare content in the field of view
Implementation Method 2
the optics comprises a beam combiner configured to combine the display content of the display and the glare content of the glare emitter
Implementation Method 3
The angle selective filter is configured to filter out light beams of light exiting the optical element and having an angle of incidence on the curved surface larger than a cut-off angle of incidence
Implementation Method 4
A transparent optical coating is formed upon a surface of the visor body which is partially transmissive of light of visible optical wavelengths amongst which it is preferentially transmissive of light of a subrange of wavelengths for including therein the wavelength(s) of display light
Data Source
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Figure 3A~3B
Figure 3C~3D
AI summary
An apparatus comprising: a display configured to render display content over a field of view; and a glare system configured to render glare content in the field of view, wherein the glare system is configured to render the glare content at different positions across the field of view at different times while the display renders the display content.