Forehead-Mounted HMD with Remote Control
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Solution Overview
Problem
Existing head-mounted displays obstruct facial features, limiting natural human interaction and accommodating only a narrow range of interpupillary distances, while also being restrictive in their design for viewing 3D and 2D media.
Innovation Solution
A head-mounted display that secures a mobile device and projects 3D or 2D images onto an eyepiece, allowing for a design that rests above the eyebrows, providing an unobstructed view of the face and accommodating a wide range of interpupillary distances, with a remote control for device operation and wireless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the head mounted display is designed to cover the face for immersive viewing, then the viewing experience is improved, but facial features become obstructed limiting natural human interaction
Solution Approach 1:
The invention extracts the display function from a face-covering configuration and relocates it to a forehead-mounted position. The mobile device is secured in a holder positioned above the eyebrows, with the display surface oriented to face the user's eyes through optical elements, thereby achieving immersive viewing without obstructing facial features.
Solution Approach 2:
The invention changes the spatial dimension of the display configuration by transitioning from a horizontal face-covering arrangement to a vertical forehead-mounted arrangement. The optical elements (lenses, mirrors, or waveguides) redirect light from the mobile device display to the user's eyes, creating a new optical path that eliminates facial obstruction while maintaining viewing immersion.
2Ease of manufacture
If the head mounted display is designed with a fixed structure, then manufacturing is simplified, but it accommodates only a narrow range of interpupillary distances
Solution Approach 1:
The invention introduces adjustable elements that allow the optical assembly to adapt to different interpupillary distances. The lenses or optical elements can be repositioned along the optical axis or laterally adjusted to match the user's specific eye spacing, enabling the fixed structure to accommodate variable human anatomy while maintaining manufacturing simplicity.
Solution Approach 2:
The head mounted display is designed with universal adjustability features that allow a single device structure to serve multiple users with different interpupillary distances. The adjustment mechanism enables the same physical structure to be configured for various eye spacings, making the device universally applicable across different user populations.
3Stability of the object's composition
If the mobile device is securely mounted in the head mounted display, then image projection stability is improved, but device control becomes difficult
Solution Approach 1:
The invention introduces a remote control device as an intermediary between the user and the mobile device. The remote control communicates wirelessly (via Bluetooth, Wi-Fi, or other protocols) with the mobile device, allowing the user to control media playback, navigation, and other functions without needing to physically handle or touch the mobile device mounted in the head worn display.
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 natural human interaction by keeping facial features visible and supports a broader range of users with adjustable fit, while providing an immersive experience for both 3D and 2D media viewing.
Implementation Method 1
a reflecting surface, connected to the housing, that reflects images displayed by the mobile device
Implementation Method 2
a lens, connected to the housing, that focuses images reflected by the reflecting surface
Data Source
AI summary
A head mounted display device that displays three dimensional images from a mobile device, which includes a strap that secures the head mounted display to the head of a viewer, a viewing assembly connected to the strap, that includes a housing, a mobile device holder, connected to the housing, a reflecting surface, connected to the housing, that reflects images displayed by the mobile device; and an eyepiece onto which the reflecting surface reflects the images.