Detachable HMD Glasses Affixation Detection
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Solution Overview
Problem
Conventional head-mounted display (HMD) devices are inconvenient for users who wear glasses, as they require removal of glasses to wear the HMD, and may not accommodate individual eye sight and frame size differences, leading to non-focusing issues and discomfort.
Innovation Solution
A detachable HMD device that includes a display unit, a first sensor unit to detect affixation to glasses, and a second sensor unit to detect input signals, allowing for adjustable focus and control inputs based on the user's glasses features, using electromagnetic patterns, RFID, bar codes, or QR codes for identification and interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If HMD device is manufactured at micro size to be detachably affixed to eye-glasses, then adaptability to user's glasses and ease of wearing is improved, but manufacturing precision and device complexity increase
Solution Approach 1:
The HMD system is divided into separate components: a detachable HMD device and a sensor unit attached to the user's glasses. This segmentation allows the HMD to be manufactured at micro size for easy attachment, while the sensor unit handles the complex detection functions, thereby resolving the contradiction between miniaturization and manufacturing precision.
Solution Approach 2:
A sensor unit acts as an intermediary between the HMD device and the user's glasses. The sensor unit detects electromagnetic patterns, RFID tags, bar codes, or QR codes on the glasses to identify and adapt to the specific glasses being used. This intermediary approach enables adaptability without requiring complex manufacturing in the HMD device itself.
2Ease of operation
If HMD device is manufactured at micro size, then ease of carrying is improved, but device complexity increases due to integration requirements
Solution Approach 1:
The system is segmented into a portable HMD device and a separate sensor unit. The HMD can be carried independently at micro size, while the sensor unit is attached to the glasses and handles the complex detection and identification functions, reducing the complexity burden on the portable HMD component.
Solution Approach 2:
The sensor unit attached to the user's glasses performs self-service by automatically detecting and identifying the glasses characteristics. This eliminates the need for the HMD device to contain complex detection mechanisms, thereby simplifying the HMD design while improving portability.
3Measurement precision
If sensor unit detects affixation to glasses and adjusts focus, then visual information focusing is improved, but device complexity increases
Solution Approach 1:
The sensor unit serves as an intermediary that detects affixation to the user's glasses and automatically adjusts focus settings. This mediator approach enables precise visual information focusing without requiring complex focus adjustment mechanisms within the HMD device itself, thereby reducing overall device complexity.
Solution Approach 2:
The sensor unit provides feedback by detecting whether the HMD is properly affixed to the user's glasses and automatically adjusts focus accordingly. This feedback mechanism improves visual information focusing precision while maintaining simple device architecture, as the adjustment is automated based on detection results rather than manual intervention.
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 and focused visual information display on HMD devices by adjusting focus and control inputs according to the user's glasses, enhancing user experience and convenience by being detachable and adaptable to individual eye sight and frame sizes.
Implementation Method 1
The detached sensor unit may sense variation of the electromagnetic pattern output from the affixed portion
Implementation Method 2
sense variation of the electromagnetic pattern output from the affixed portion
Data Source
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AI summary
A micro-head mounted display device that may be detachably affixed to eye-glasses and a method for controlling the same are disclosed. A method for controlling a detachable HMD device, detecting that the HMD device is affixed to eye-glasses, acquiring identification information of the eye-glasses, acquiring a look up table related to the identification information, receiving an input signal generated when the eye-glasses to which the HMD device is affixed are touched, from the sensor unit, acquiring a control input related to the input signal from the look up table, and performing a function corresponding to the control input.