Integrally Formed Backlightable Indicator Region in Electrical Load Controller
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Solution Overview
Problem
Conventional dimmer switches lack an integrally formed backlightable indicator region, which limits user feedback on power level adjustments and visual appeal when no power is supplied.
Innovation Solution
An electrical load controller with a frame featuring an integrally formed backlightable indicator region, where light from an illumination assembly is directed onto an inner surface and transmitted through to an outer continuous solid surface, providing user-observable feedback on power levels without visible indicators when power is off.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional dimmer switches include visible indicator arrays or light guides, then user feedback on power levels is provided, but the device lacks visual appeal when no power is supplied
Solution Approach 1:
The indicator region changes its optical properties based on power state: when powered, it transmits light to display power level information; when unpowered, it maintains an opaque appearance for aesthetic purposes. This dynamic optical property change resolves the contradiction between providing user feedback and maintaining visual appeal.
Solution Approach 2:
The frame with its integrally formed indicator region acts as an intermediary between the illumination assembly and the user. It selectively transmits or blocks light based on power state, mediating between the need for visible feedback and the need for aesthetic appearance when off.
2Illumination intensity
If separate light guide assemblies are used for indicator regions, then illumination can be provided, but device complexity increases
Solution Approach 1:
The indicator region is integrally formed with the frame as a single piece, eliminating the need for separate light guide assemblies. This merging of components reduces device complexity while maintaining the illumination function through the frame's own structure.
Solution Approach 2:
The frame serves multiple functions: it provides structural support, houses the illumination assembly, and acts as the indicator region itself through its integrally formed structure. This multi-functionality eliminates the need for dedicated separate indicator components.
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
Enhances user feedback on power levels and maintains a visually appealing appearance by illuminating the indicator region only when power is supplied, improving user interaction and aesthetics.
Implementation Method 1
Light from the illumination assembly related to the level of power to the load is directable onto a portion of an inner surface of the backlightable indicator region, transmittable through the backlightable indicator region from the inner surface to the outer surface
Data Source
AI summary
An electrical load controller includes an electrical switching device and an actuator assembly having at least one user actuator for use in turning power on and off to the load and for use in adjustably controlling the level of power to the load. A frame attached to the actuator includes an integrally formed backlightable indicator region having an outer continuous solid surface. Light from an illumination assembly related to the level of power to the load is directable onto a portion of an inner surface of the backlightable indicator region, transmittable through the backlightable region from the inner surface to the outer surface, emittable from a portion of the outer surface, and observable by the user.