Eyewear Micro-Display with Nested Optical Module
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Solution Overview
Problem
Traditional head-mounted displays (HMDs) are bulky and unsightly, making them uncomfortable and socially unacceptably to wear.
Innovation Solution
A wearable electronic display system integrated into eyewear frames, featuring a micro-display module with an elongate portion and an image exit window positioned for comfortable viewing, allowing for adjustable interpupillary distance and optical axis alignment, and designed to resemble conventional eyeglasses for a natural appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional head-mounted displays are used, then images can be displayed to the user, but the device becomes bulky and unsightly
Solution Approach 1:
The display module is nested within the eyewear frame structure, with the micro-display and optical components integrated into the frame's geometric shapes. The elongate portion of the display module is positioned within the frame's rim structure, allowing the entire display system to be contained within conventional eyewear dimensions, thus resolving the bulkiness issue while maintaining display functionality
Solution Approach 2:
The display module utilizes the three-dimensional space within the eyewear frame by positioning the elongate portion along the level of above-eye or below-eye frame members. The image exit window is tilted at specific angles (e.g., 15-45 degrees) to direct images to the user's eye, effectively utilizing spatial dimensions to achieve compact integration without compromising display performance
2Volume of moving object
If the display module is made compact to fit eyewear frame, then wearability improves, but image quality and viewing comfort may be compromised
Solution Approach 1:
The eyewear frame incorporates adjustable features including a center bridge with adjustable width for interpupillary distance (IPD) adjustment, and pivots that allow the front frame portion to be adjusted relative to the side frame portions. These dynamic adjustment mechanisms enable precise optical alignment for each user, compensating for the compact size of the display module and ensuring proper image delivery to the eye
Solution Approach 2:
The display module is positioned at specific locations within the eyewear frame, with the elongate portion extending along the level of above-eye or below-eye frame members. The image exit window is tilted at specific angles to match the user's viewing geometry. This localized optimization of position and orientation ensures that despite the compact overall size, the optical alignment precision required for comfortable viewing is achieved at the critical image delivery point
Data Source
AI summary
A wearable electronic display that includes an eyewear frame having a first side frame portion. A display module with a micro-display for generating images can be mounted to the first side frame portion. The display module can have an elongate portion with an image exit window positioned for directing viewable images to a user's eye.