Head-Mounted Optical Modules for IPD Adjustment and Contaminant Sealing
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Solution Overview
Problem
Existing head-mounted devices face challenges in accommodating varying interpupillary distances and providing individualized vision correction while protecting optical modules from environmental contaminants.
Innovation Solution
The head-mounted device includes adjustable optical modules with actuators for interpupillary distance adjustment, removable vision correction lenses secured by magnets, and gaskets to seal against dust and moisture, ensuring clear image display and user comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gaskets are used to seal optical modules against environmental contaminants, then protection against dust and moisture is improved, but the complexity of the optical module structure increases
Solution Approach 1:
The patent employs gaskets as flexible sealing elements that create moisture and dust barriers between environmental contaminants and the optical module interior. These thin film-like sealing components provide effective protection without requiring complex structural modifications to the optical module housing.
2Adaptability or versatility
If removable vision correction lenses are added to accommodate individualized vision correction, then adaptability to different user needs is improved, but the device complexity increases
Solution Approach 1:
The patent divides the optical system into separable components by making vision correction lenses removable. This segmentation allows users to attach or detach lenses as needed, providing individualized vision correction without permanently integrating complex optical elements into the head-mounted device structure.
Solution Approach 2:
The patent implements dynamic adaptability by enabling users to change vision correction lenses based on their specific needs. The removable lens design allows the optical configuration to be dynamically adjusted rather than fixed, accommodating different prescriptions and correction requirements without redesigning the entire device.
3Ease of operation
If optical modules are made adjustable for interpupillary distance, then ease of operation for different users is improved, but the device complexity increases
Solution Approach 1:
The patent implements adjustability mechanisms that allow optical modules to be dynamically repositioned to match different interpupillary distances. This dynamic adjustment capability enables the device to adapt to various users and their specific anatomical requirements without requiring a completely different design for each user.
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
The solution effectively accommodates diverse interpupillary distances and provides personalized vision correction, while maintaining optical clarity and protection against environmental contaminants, enhancing user experience and device reliability.
Implementation Method 1
Sets of magnets in the left and right optical modules may be configured to attract corresponding left and right vision correction lenses
Data Source
AI summary
A head-mounted device may have left and right optical modules that present images to a user's eyes. Each optical module may have an optical module support structure and a lens and display coupled to the optical module support structure. The head-mounted device may have a head-mounted housing that supports the optical modules. A cover on a rear face of the head-mounted housing may have a pair of openings configured to receive the left and right optical modules. The cover may have a cover layer and left and right cover layer mounting rings respectively configured to engage with the optical module support structures of the left and right optical modules. Sets of magnets in the left and right optical modules may be configured to attract corresponding left and right vision correction lenses. Gaskets may surround the lenses in the optical modules and may prevent environmental contaminant intrusion.