AR Eyewear Insertable Prescription Lens Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional AR eyewear displays require manufacturers to handle a wide range of prescription lens types, which can lead to delays in delivering the devices to users, as the burden of fulfilling different Rx lens types falls solely on the manufacturer, limiting user access to augmented reality experiences.
Innovation Solution
The design allows for parties other than the eyewear display manufacturer, such as optometrists, to insert or replace prescription lenses by using detachable rim pieces, lens retention components, and adhesive-based systems, enabling the integration of prescription lenses into the eyewear displays, thereby shifting the burden and reducing manufacturing delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the manufacturer fulfills all prescription lens types, then the AR eyewear display can provide vision correction for all users, but the manufacturing complexity and delivery time increase
Solution Approach 1:
The eyewear display is divided into modular components: a base frame and interchangeable prescription lens inserts. The lens inserts are separated from the main manufacturing process, allowing the frame to be produced independently while lenses are customized separately and inserted later by the user or provider.
Solution Approach 2:
The base eyewear display frame is prepared in advance with lens insertion features (retention components, alignment structures) before the specific prescription lenses are determined. This allows the frame manufacturing to proceed without waiting for lens customization.
2Reliability
If the manufacturer handles all Rx lens fulfillment, then quality control is maintained, but the device complexity and manufacturing burden increase
Solution Approach 1:
The prescription lens fulfillment function is extracted from the manufacturer's core manufacturing process. The lens inserts are designed as separate, self-contained components that can be provided by third parties (optometrists, lens manufacturers) while the manufacturer focuses on producing the base eyewear display frame with standardized insertion mechanisms.
Solution Approach 2:
The base eyewear display frame is designed with universal lens insertion features that can accommodate different prescription lens types and providers. The retention components and alignment structures are standardized to work with various lens configurations, allowing the same frame design to serve multiple lens providers and prescription types.
3Ease of operation
If detachable rim pieces are used for lens insertion, then non-manufacturer parties can fulfill lenses, but the structural complexity of the eyewear display increases
Solution Approach 1:
The rim structure is segmented into detachable sections (nose pieces, temple pieces) that can be removed to access lens insertion points. These segmented components are designed with simple connection mechanisms (snap-fit, screw, or adhesive-based) that maintain structural integrity while enabling easy lens access.
Solution Approach 2:
The detachable rim pieces act as intermediaries between the user and the lens insertion process. They provide a user-friendly interface for accessing the lens cavity while maintaining the overall structural integrity of the eyewear display when assembled.
4Reliability
If lens retention components are used, then prescription lenses can be securely held, but the ease of lens replacement by non-manufacturers decreases
Solution Approach 1:
The lens retention system uses dynamic, reversible retention mechanisms rather than permanent fixation. Retention components such as spring-loaded clips, snap-fit features, or removable adhesive systems allow the lens to be securely held during normal use but easily released and replaced by users or providers without specialized tools or manufacturing equipment.
Data Source
AI summary
An eyewear display includes a frame comprising two lens rims and a nose bridge, a first lens rim of the two lens rims holding a lens stack including a first lens (e.g., a world-side lens) and a waveguide. A detachable rim piece is attached to the first lens rim, and, upon being detached from the first lens rim, the detachable rim piece exposes a loading cavity housing a lens retention component. The lens retention component is removable from the loading cavity to insert a second lens with a vision correction prescription within the lens stack of the first lens rim. The lens retention component is then re-inserted into the loading cavity to fix the second lens (e.g., an eye-side lens) into the lens stack of the first lens rim. The detachable rim piece is then re-attached to cover the loading cavity and the lens retention component.