HMD Interface Venting and Light Shielding for Facial Comfort
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing head-mounted display systems suffer from discomfort due to clamping pressure, light leakage, and difficulty in adjusting to varying facial shapes, leading to reduced usability and user experience, especially during prolonged use.
Innovation Solution
The development of an interfacing structure with a chassis featuring vents and light shields, combined with a positioning and stabilizing structure that uses elastomeric materials and adjustable connectors, provides improved comfort and sealing while allowing air circulation and light management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a seal is provided against the user's face to block ambient light, then light leakage is reduced, but clamping pressure increases causing discomfort
Solution Approach 1:
The interfacing structure is divided into multiple segments including a forehead rest, lateral engagement structures, and a chin rest. These segmented components work together to distribute the sealing function across different facial contact points, reducing the concentration of clamping pressure while maintaining effective light blocking where needed.
Solution Approach 2:
The lateral engagement structures incorporate light-shielding walls that extend into the temporal regions, providing localized light blocking precisely where ambient light would penetrate. This allows the seal to be effective at critical light leakage points without requiring uniform high pressure across the entire facial interface.
2Adaptability or versatility
If the interfacing structure is designed to accommodate varying facial shapes, then adaptability improves, but device complexity increases
Solution Approach 1:
The positioning and stabilizing structure incorporates adjustable elements including movable connectors and reconfigurable support members that can be dynamically adjusted to match different facial geometries. This dynamic adaptability allows a single interfacing structure design to accommodate varying facial shapes without requiring multiple specialized components.
Solution Approach 2:
The lateral engagement structures serve multiple functions: they provide light shielding, maintain positional stability, accommodate facial shape variations, and contribute to overall structural support. This multi-functionality reduces the need for separate specialized components, thereby managing device complexity while achieving adaptability.
3Ease of operation
If vents are added to allow air circulation, then user comfort improves, but light leakage risk increases
Solution Approach 1:
The light-shielding walls are strategically positioned within the temporal regions and extend through the vent structures. This localized light blocking capability allows vents to remain open for air circulation while preventing light from penetrating through the vent pathways to the user's eyes.
Solution Approach 2:
The light-shielding walls act as intermediary elements that separate the air circulation function (vents) from the light blocking function. These walls allow air to pass through the vent openings for comfort while simultaneously blocking light paths, mediating between the conflicting requirements of ventilation and light leakage prevention.
Data Source
AI summary
An interfacing structure for a head-mounted display unit is constructed and arranged to be in opposing relation with a user's face. The interfacing structure comprises a chassis, the chassis having a wall, and at least one vent extending through the wall. The vent has a first opening on an inner face of the wall and a second opening on an outer face of the wall. The vent is substantially linear between the first and second openings, and/or is configured to allow the passage of light from the second opening to the first opening. The chassis also has at least one light shield portion configured to block light from the vent from entering the user's eye.