Compressible Eyecup Assemblies for VR Headset Interpupillary Adjustment
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Solution Overview
Problem
Conventional virtual reality headsets require multiple rigid eyecup assemblies of different sizes to accommodate various users, leading to increased production costs and limited user compatibility due to fixed distances between the eyecup and the user's eye, which affects comfort and field of view.
Innovation Solution
A virtual reality headset with deformable eyecup assemblies and an adjustment mechanism that allows users to adjust the distance between the eyecup and their eyes, as well as the center spacing between eyecup assemblies to match individual interpupillary distances, using a cone made of opaque material and compression adjusters, enabling comfortable use by different users with varying characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple rigid eyecup assemblies of different sizes are produced, then user compatibility is improved, but production costs increase
Solution Approach 1:
The patent applies the dynamics principle by making the eyecup assembly adjustable rather than fixed. The cone-shaped structure can be compressed to change the distance between the lens and the user's eye, allowing a single eyecup design to accommodate multiple users with different interpupillary distances and eye characteristics, thereby improving user compatibility without requiring multiple rigid sizes
Solution Approach 2:
The patent implements parameter changes by allowing the physical dimensions of the eyecup assembly to be modified through compression. The distance between the lens and the mounting surface can be adjusted by compressing the cone structure, enabling the same eyecup to adapt to different user requirements without changing the fundamental design or requiring multiple production variants
2Ease of manufacture
If a fixed-size rigid eyecup assembly is used, then production costs are reduced, but user comfort and field of view are compromised
Solution Approach 1:
The eyecup assembly incorporates a deformable cone structure that can be compressed to adjust the lens-to-eye distance, transforming a static component into a dynamic one. This allows the system to maintain low production costs by using a single design while improving user comfort through adjustable spacing that adapts to individual user needs
3Device complexity
If a fixed-size rigid eyecup assembly is used, then production complexity is reduced, but field of view adjustment capability is lost
Solution Approach 1:
The cone-shaped eyecup assembly is designed to be compressible, allowing the distance between the lens and the user's eye to be adjusted. This dynamic adjustment capability enables field of view optimization for different users without increasing production complexity, as the same compressible structure serves multiple adjustment needs
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 single VR headset to be used by multiple users with different eye characteristics by adjusting the eyecup spacing for comfort and optimal field of view, reducing production costs by eliminating the need for multiple eyecup sizes.
Implementation Method 1
a compression adjuster is a spring configured to compress in response to application of an electric current to the spring
Data Source
AI summary
A virtual reality (VR) headset includes an electronic display element, an optics block, and an adjustment mechanism. The electronic display element outputs image light. The optics block includes a cone and an additional cone coupled to a lens and an additional lens, respectively. Image light is directed to the lens and to the additional lens via the cone and additional cone, respectively. Each of the cones comprises an opaque material that is deformable to adjust a distance from a base portion of a cone to a top portion of a cone may be adjusted, via, compression, elongation, or both. An adjustment mechanism may receive input from a user and configured to adjust the distance one or more of the cone and the additional cone.