Multi-piece insert with glue seal for ophthalmic devices
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Solution Overview
Problem
Existing ophthalmic devices, such as contact lenses and intraocular lenses, lack a mechanism for wireless energization, limiting their ability to power embedded semiconductor devices and control optical characteristics.
Innovation Solution
The development of methods and apparatus for sealing and encapsulating energized components within ophthalmic lenses using multi-piece inserts, which include energy sources and circuitry, allowing for wireless power and integration of semiconductor devices, active optical elements, and other electronic components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If semiconductor devices and electronic components are embedded in an ophthalmic lens, then the functionality and optical characteristics of the lens can be controlled, but the lens lacks a mechanism for wireless energization
Solution Approach 1:
The patent embeds an energized insert containing battery, circuit board, and semiconductor devices within the ophthalmic lens structure. The insert is nested inside the lens body, with the battery housed in a cavity formed by front and back curve pieces, allowing wireless power integration without compromising lens functionality or optical characteristics
2Adaptability or versatility
If multiple components are integrated into the ophthalmic lens, then the device becomes more functional, but the complexity of sealing and encapsulation increases
Solution Approach 1:
The patent divides the insert into multiple discrete components: front curve piece, back curve piece, energy source, circuit board, and semiconductor devices. Each component is separately manufactured and then assembled, allowing for simplified individual sealing processes rather than attempting to seal a complex integrated unit as a whole
Solution Approach 2:
The patent employs nested encapsulation where the energy source is sealed within a cavity formed by the front and back curve pieces, the circuit board is mounted on the insert structure, and semiconductor devices are embedded within the lens material. This nested arrangement allows each component to be sealed independently while maintaining overall device integration
3Use of energy by moving object
If an energized insert is embedded in the ophthalmic lens, then wireless power capability is achieved, but the manufacturing process becomes more complex
Solution Approach 1:
The patent forms the cavity for the energy source and prepares the insert structure before final lens assembly. The front and back curve pieces are positioned and sealed in advance, creating a pre-assembled insert that can be integrated into the lens in a single step, simplifying the overall manufacturing process despite the added complexity of wireless power components
4Adaptability or versatility
If semiconductor devices are embedded in the contact lens, then the lens can be energized, but there is no mechanism for wireless power available
Solution Approach 1:
The patent integrates a complete wireless power system by nesting the battery, circuit board, and antenna components within the insert structure that is embedded in the contact lens. This nested configuration enables wireless power capability while maintaining the lens's ability to be energized for controlling optical characteristics
Data Source
AI summary
Methods and apparatus for sealing and encapsulating components on and within a multi-piece insert are set forth herein. In some embodiments, an ophthalmic lens is cast molded from a silicone hydrogel and the component includes a sealed and encapsulated multi-piece insert portion.