Fluorescent Doorknob Illumination Without Electronics
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Solution Overview
Problem
Existing doorknob devices are not easily visible in dark environments, posing a challenge for users, especially at night, without the need for electronic illumination.
Innovation Solution
A doorknob device with a rotatably mounted light emitter made of fluorescent material that absorbs visible light during the day and emits light at night, providing illumination without electronic circuitry or power sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a conventional doorknob is used, then the structure is simple and cost-effective, but the doorknob is not visible in dark environments
Solution Approach 1:
The patent applies fluorescent material to the doorknob surface, which changes its optical properties by absorbing ultraviolet light and emitting visible light. This allows the doorknob to be visible in dark environments without adding complex electronic components, as the fluorescent coating passively converts UV radiation to visible illumination.
2Illumination intensity
If electronic illumination is added to illuminate the doorknob, then visibility in dark environments is improved, but the device complexity and power source requirements increase
Solution Approach 1:
The fluorescent doorknob is self-illuminating by absorbing ambient ultraviolet light and converting it to visible light. This self-service mechanism eliminates the need for external power sources, batteries, or electronic control circuits, thereby maintaining structural simplicity while achieving illumination in dark environments.
3Illumination intensity
If electronic illumination is added to illuminate the doorknob, then visibility in dark environments is improved, but the energy consumption increases
Solution Approach 1:
The patent converts ultraviolet radiation, which is typically invisible and unused by conventional doorknobs, into beneficial visible light. By applying fluorescent material, the doorknob captures UV energy from ambient sources and transforms it into useful illumination, eliminating the need for additional energy consumption while improving visibility.
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
Enables the doorknob to be visibly accessible in dark environments, facilitating user interaction without the need for additional lighting sources, enhancing safety and usability.
Implementation Method 1
A light emitter is provided and the light emitter is comprised of a fluorescent material thereby facilitating the light emitter to emit light in a darkened environment
Data Source
AI summary
A fluorescent doorknob assembly for illuminating a doorknob in a darkened environment includes a doorknob that is rotatably mounted on a door for opening the door. A light emitter is coupled to the doorknob. The light emitter is comprised of a fluorescent material thereby facilitating the light emitter to emit light in a darkened environment. In this way the light emitter illuminates the doorknob thereby making the doorknob visible to a user a night.