Outlet-End Illumination for Privacy-Aware E-Vaping Devices
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Solution Overview
Problem
Existing e-vaping devices lack effective mechanisms for illuminating the outlet end to provide visual cues or information to users while maintaining privacy and reducing visibility to others.
Innovation Solution
The e-vaping device incorporates a housing that channels light from a tip end to the outlet end via internal reflection and an outlet-end insert that emits the light, allowing for controlled illumination of the outlet end, which can convey information to the user while minimizing visibility to others.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the e-vaping device uses a light source to illuminate the outlet end, then visual feedback to the user is improved, but visibility to others increases which reduces privacy
Solution Approach 1:
The housing is designed with selective optical properties where specific regions are transparent to visible light (allowing user viewing) while other regions reflect or block light (preventing external viewing). This local differentiation of optical properties enables the outlet end to be illuminated for user feedback while maintaining privacy by controlling where the light is visible.
Solution Approach 2:
The housing channels light through its interior structure, directing illumination along the longitudinal axis from the tip end to the outlet end. This spatial arrangement creates directional visibility where light travels through the device interior but is confined to specific viewing angles, providing user feedback while limiting external observation.
2Loss of information
If the housing channels light through its interior via internal reflection, then light guidance and directionality are improved, but device complexity increases
Solution Approach 1:
The housing serves multiple functions simultaneously: it provides structural support, encloses internal components, and acts as a light-guiding channel through its transparent regions and internal reflection properties. This multi-functionality eliminates the need for separate light-guiding components, reducing overall device complexity while maintaining effective light direction control.
Solution Approach 2:
The housing structure itself performs the light channeling function through its inherent optical properties and geometric design, rather than requiring additional dedicated light-guiding components. The transparent regions and internal surfaces of the housing automatically guide and reflect light along the desired path, making the structure self-sufficient for both mechanical and optical functions.
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 enhances user interaction by providing visual feedback at the outlet end while reducing external visibility, thus improving privacy and usability.
Implementation Method 1
The housing may be configured to channel light from the tip end of the housing to the outlet end of the housing via internal reflection through an interior of the housing
Data Source
AI summary
A cartridge for an e-vaping device includes a housing extending along a longitudinal axis of the cartridge, and an outlet-end insert coupled to the outlet end of the housing. The housing at least partially encloses a pre-vapor formulation reservoir and a vapor generator of the cartridge and further channels light via internal reflection through an interior of the housing. The outlet-end insert includes an outlet in flow communication with the vapor generator, directs the vapor generated by the vapor generator out of the cartridge through the outlet, and further emits the light channeled through the interior of the housing. One or more properties of the light are controllable.