HMD Mobile Device Holder with Mechanical Touch Controls
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Solution Overview
Problem
Existing head-mounted display systems do not effectively integrate with portable electronics devices to provide a seamless and interactive 3D viewing experience without the need for special glasses, limiting their usability for both 3D and 2D media.
Innovation Solution
A head-mounted display system that secures a mobile device and projects images onto an eyepiece, using mechanical controls to interact with the device's touch-sensitive screen, allowing for the activation of functions and navigation through graphical user interfaces, enabling the display of both 3D and 2D content with depth perception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a head mounted display system is used to display 3D images from a mobile device, then the viewing experience becomes immersive and hands-free, but the device complexity and integration difficulty increase
Solution Approach 1:
The patent combines the mobile device, optical assembly, and control mechanisms into a single integrated head-mounted display system. The mobile device is securely mounted within the HMD frame, with its display positioned to project through the optical assembly. This merging eliminates the need for separate viewing devices and enables hands-free operation while managing the complexity through unified design.
Solution Approach 2:
The HMD system is designed to handle multiple functions: displaying 3D stereoscopic images, displaying 2D images, and providing mechanical controls for device operation. The optical assembly can project different types of content from the mobile device, and the mechanical controls enable interaction with the mobile device's interface, making the system versatile and reducing the need for additional specialized equipment.
2Adaptability or versatility
If mechanical controls are added to interact with the mobile device's touch screen, then user interaction capability improves, but the device complexity increases
Solution Approach 1:
The mechanical controls serve as an intermediary between the user and the mobile device's touch screen interface. Instead of requiring direct touch interaction, the mechanical controls (buttons, sliders, or dials) physically contact the touch screen at specific locations to simulate touch input. This mediator approach enables users to interact with the mobile device while wearing the HMD, improving adaptability without requiring complex gesture recognition or voice control systems.
3Adaptability or versatility
If the eyepiece is made partially transparent to superimpose the 3D image on the real world, then the viewing experience becomes more immersive, but the image quality and contrast may deteriorate
Solution Approach 1:
The optical assembly is designed with localized optical properties to manage light transmission and reflection. The partially transparent eyepiece allows real-world light to pass through while reflecting the projected image with sufficient brightness. Different regions of the optical system may have different transparency or reflectivity characteristics optimized for their specific function, balancing the need for world visibility with image quality maintenance.
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 hands-free, immersive viewing experience for 3D and 2D content, enhancing user interaction and convenience by allowing control of mobile device functions directly through the head-mounted display, while maintaining the portability and cost-effectiveness of using a smartphone.
Implementation Method 1
an optical assembly secures a mobile device and projects images displayed by the mobile device onto an eyepiece
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, connected to the housing, onto which the reflecting surface reflects the images.