Magnetic Removable Frames for Head-Mounted Displays
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Solution Overview
Problem
Conventional head-mounted display systems are often uncomfortable for users who wear prescription glasses and may not accommodate eye-tracking systems effectively.
Innovation Solution
The development of magnetically attachable frames with optical components, such as lenses and light emitters, that can be easily detached and reattached to head-worn display systems, allowing for alignment and electrical connections for eye-tracking functionality, including passive electrical contacts for power coupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional head-mounted display systems are used, then the basic display function is provided, but users who wear prescription glasses experience discomfort and unusability
Solution Approach 1:
The head-mounted display system is divided into separate modular components: a base unit and detachable frames. The frames can be independently selected and attached based on user needs, such as prescription strength or eye-tracking requirements, allowing customization without compromising comfort or functionality.
2Adaptability or versatility
If traditional head-mounted display systems are configured to allow wearing over glasses, then glasses compatibility is achieved, but comfort deteriorates and eye-tracking functionality is not enabled
Solution Approach 1:
A magnetic frame acts as an intermediary component between the base head-mounted display and the user's face. This frame can incorporate prescription lenses and eye-tracking emitters, mediating the interaction between the rigid electronics and the user's anatomical features, thereby enabling both glasses compatibility and reliable eye-tracking.
3Manufacturing precision
If fixed optical components are integrated into the head-mounted display, then alignment is precise, but adaptability for different users and features is reduced
Solution Approach 1:
The system transitions from a static, fixed configuration to a dynamic, reconfigurable one. Frames with optical components can be detached and reattached as needed, allowing the system to adapt to different users and requirements while maintaining precise alignment through magnetic guidance and mechanical features during each attachment.
4Reliability
If electrical connections are made permanent for powering emitters, then power delivery is reliable, but ease of removal and reattachment of frames is reduced
Solution Approach 1:
The patent replaces complex mechanical electrical connectors with a simpler magnetic attachment system. The magnetic force provides both mechanical retention and electrical contact simultaneously, eliminating the need for separate connector mechanisms while maintaining reliable power delivery and enabling easy attachment/detachment.
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 comfortable use for users with prescription glasses, provides customizable optical correction, and enhances eye-tracking capabilities, improving user experience and ease of use by allowing quick addition or removal of features like eye-tracking.
Implementation Method 1
The frame may magnetically attach to the head-worn display system
Implementation Method 2
a lens configured to, when aligned for use with the near-eye display, focus light from the near-eye display on an eye of a user
Implementation Method 3
a lens configured to, when aligned for use with the near-eye display, focus light from the near-eye display on an eye of a user
Implementation Method 4
an infrared emitter that, when aligned with the near-eye display, emits infrared light toward the eye of the user
Implementation Method 5
an eye-tracking subsystem configured to track the eye of the user by detecting light from the emitter that is reflected from the eye of the user
Implementation Method 6
The electrical terminal may include a spring-loaded pin and/or a socket dimensioned to receive a spring-loaded pin
Data Source
AI summary
In one example, an apparatus may include a frame that includes an optical component configured for use with a near-eye display that is part of a head-worn display system. The frame magnetically attaches to the head-worn display system, and when the frame is attached to the head-worn display system, the frame may align the optical component for use with the near-eye display. Various other methods, systems, and computer-readable media are also disclosed.