VR Headset Transition Unit for Balanced Weight Distribution
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Solution Overview
Problem
Existing virtual reality (VR) head-mounted displays (HMDs) face challenges in design and usability due to the need for optimal component placement for weight distribution, leading to discomfort and manufacturing complexities.
Innovation Solution
The proposed VR device form-factor features a central body that passes over the top of the user's head, eliminating side straps and incorporating an adjustable design with mounting pads for secure fitment. Electronic components are distributed along the strap to achieve balanced weight, and rear computes communicate with front units without the need for signal amplifiers or intermediate circuit boards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If electronic components are concentrated in a single location, then device structure is simplified, but weight distribution becomes unbalanced causing user discomfort
Solution Approach 1:
The patent divides the HMD into multiple segments: front unit, rear unit, and transition unit. Electronic components are distributed across these segments rather than concentrated in one location. The rear unit contains heavier components like battery and compute module, while the front unit contains display and camera, creating balanced weight distribution along the head-mounted device.
2Adaptability or versatility
If signal wires are routed around the user's head, then component placement flexibility increases, but signal loss increases requiring amplifiers and intermediate circuit boards
Solution Approach 1:
The transition unit serves as an intermediary between the front unit and rear unit. It houses intermediate circuit boards and signal amplifiers that actively compensate for signal losses. This mediator approach allows long wire routes around the user's head while maintaining signal quality through active compensation.
3Reliability
If signal amplifiers and intermediate circuit boards are added, then signal transmission quality is maintained, but manufacturing cost increases
Solution Approach 1:
The transition unit is designed as a dynamic element that can be adjusted or removed based on specific application requirements. It provides optional signal amplification and intermediate processing capabilities, allowing the system to adapt between high-reliability modes (with amplifiers) and cost-effective modes (without amplifiers) depending on the use case.
4Ease of manufacture
If traditional HMD form factor with forward-weighted design is used, then manufacturing is simplified, but user comfort deteriorates
Solution Approach 1:
The patent employs asymmetric design in the HMD structure. The rear unit is designed to be heavier than the front unit, creating a counterbalancing effect. The transition unit acts as a fulcrum point, and the asymmetric weight distribution around this fulcrum creates a balanced overall device that is comfortable to wear despite the complex structure.
Data Source
AI summary
Systems for an improved VR device form-factor may include a head-mounted display; a rear unit that is adjustable to fit a user; and a transition unit housing at least one electronic subsystem, wherein the transition unit extends between the head-mounted display and the rear unit so as to cover a top portion of a user's head when worn by the user; and the transition unit comprises a front unit portion and a rear portion that is rotatable with respect to the front unit portion.