Eyecup Light-Blocker Apparatus for Reducing HMD Light Leakage
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Solution Overview
Problem
Head-mounted displays, such as virtual-reality headsets, experience light leakage due to varying nose shapes and sizes, disrupting the user's viewing experience, as traditional light-blocking solutions fail to consistently adapt to different facial anatomies.
Innovation Solution
A light-blocker apparatus is designed to attach to the eyecup of head-mounted displays, featuring a flexible interface and a rigid base, which adjusts to the user's eye area, reducing light leakage by moving tangentially with the eyecup and incorporating attachment features for secure fit, and optionally integrating prescription lenses for improved visual acuity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional light-blocking solutions are used, then light leakage is blocked, but they fail to adapt to different facial anatomies (nose shapes and sizes)
Solution Approach 1:
The light-blocking solution is divided into multiple light blocker assemblies, each corresponding to a specific eye region. These modular units can be independently adjusted and positioned to accommodate different facial anatomies, allowing customization for various nose shapes and sizes while maintaining effective light blocking at each eye position.
Solution Approach 2:
The light blocker assemblies incorporate adjustable and movable components that allow dynamic repositioning to adapt to different user facial features. The system enables real-time adjustment of the light blockers' positions and orientations to optimize both light blocking performance and anatomical compatibility for each user.
2Object-affected harmful factors
If light blockers are positioned to block light effectively, then viewing experience is improved, but the solution becomes complex to accommodate varying face shapes
Solution Approach 1:
By segmenting the light-blocking function into separate, standardized light blocker assemblies for each eye, the system avoids the complexity of designing a single monolithic adaptive structure. Each assembly is a simpler, standardized unit that can be independently positioned, reducing overall design complexity while maintaining effectiveness.
Solution Approach 2:
The light blocker assemblies are designed as universal components that can serve multiple users with different facial anatomies. Each assembly performs the same light-blocking function but can be positioned differently to accommodate various face shapes, eliminating the need for custom-designed complex structures for each user type.
3Object-affected harmful factors
If the light-blocker apparatus interfaces with the user's face, then light leakage is reduced, but comfort and fit variability across users increases
Solution Approach 1:
The interface with the user's face is segmented into discrete light blocker assemblies that contact or near-contact specific eye regions. This segmentation allows each assembly to be independently adjusted to the user's anatomy, maintaining consistent fit quality across different users without requiring the entire system to conform to each individual's face shape.
Solution Approach 2:
The light blocker assemblies act as intermediary elements between the head-mounted display and the user's face. These intermediaries can be positioned and adjusted to create the necessary light-blocking interface without requiring direct, precise contact with varying facial features, thereby maintaining fit consistency across users while still effectively blocking light.
Data Source
AI summary
A light-blocker apparatus may include a support element dimensioned to fit a contour of an eyecup of a head-mounted display. Additionally, the light-blocker apparatus may include an attachment feature, defined at a base of the support element, that connects the support element to the eyecup such that, when the support element is attached to the eyecup, the support element moves in conjunction with the eyecup. The light-blocker apparatus may also include an interface extending from the support element and may be dimensioned to interface with an eye area of a user's face to reduce light entering the eyecup from outside of the head-mounted display when worn by a user. Various other apparatuses, systems, and methods are also disclosed.