Solar-Powered LED Illuminator for Glow-in-the-Dark Decorative Objects
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Solution Overview
Problem
Existing glow-in-the-dark gazing globes and decorative objects lose their light-emitting capabilities after a few hours following sundown, failing to maintain illumination throughout nighttime.
Innovation Solution
A self-contained system comprising a base unit with a solar panel, batteries, and a light emitter, such as an LED, that charges during the day and turns on automatically at dusk, ensuring continuous glow-in-the-dark functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If photoluminescent pigments are applied to the inner wall of a hollow form, then the object glows in the dark initially, but the light-emitting capabilities fall off after a few hours following sundown
Solution Approach 1:
The solar cell charges the battery during daylight hours before nighttime operation is needed. This preliminary energy storage ensures the light source is ready to extend the glow duration when darkness falls, resolving the contradiction between initial illumination intensity and sustained operating period.
Solution Approach 2:
The system maintains continuous useful action by having the solar cell charge the battery during the day, which then powers the light source at night. This continuous energy flow ensures the light-activated materials remain illuminated throughout the entire nighttime period rather than fading after a few hours.
2Duration of action of stationary object
If a solar cell and battery system is added to extend operating period, then nighttime illumination is extended, but the device complexity increases
Solution Approach 1:
The base unit is designed to be universally compatible with various hollow objects through the elastomeric ring coupling mechanism. This multi-functional base unit can serve different objects while providing the same energy storage and light emission functions, reducing overall system complexity through standardization.
Solution Approach 2:
The solar cell automatically charges the battery during daylight hours without manual intervention, and the photocell automatically controls the light source based on ambient light levels. This self-service operation simplifies the system by eliminating the need for manual charging or switching, reducing operational complexity.
3Reliability
If the lower rim of the object press fits into the base unit with an elastomeric ring, then a leak-free fit is achieved and maintenance is enabled, but the device complexity increases
Solution Approach 1:
The elastomeric ring provides a flexible sealing solution that conforms to the rim of the hollow object, creating a leak-free fit. This flexible sealing mechanism is simpler than rigid sealing methods and enables easy assembly and disassembly for maintenance while ensuring reliable sealing.
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
Extends the operating period of light-activated materials in decorative objects, providing consistent nighttime illumination without the need for external power sources.
Implementation Method 1
A solar cell is used to charge a battery during the day
Implementation Method 2
a light emitter supported to illuminate the object from the inside out
Implementation Method 3
introducing one or more photoluminescent pigments into the form through the aperture so that they cling to the inner wall
Data Source
AI summary
A light source causes hollow objects to glow in the dark (GID), thereby extending the operating period of light-activated materials in gazing globes and other decorative or ornamental objects. The light source may be provided as part of a conversion kit, enabling objects from different manufacturers to be converted to GID objects following purchase. A base unit includes the light emitter supported to illuminate the object from the inside out. The base unit further includes at least one solar panel facing into the interior of the object, and one or more batteries charged by the solar panel to power the light emitter. A device is used to couple the base unit to the rim of the object. In the preferred embodiment, the device for coupling the base unit to the rim of the object is an elastomeric ring that stretches over the rim of the object, thereby forming a seal.