Solar Lantern Simulating Edison Bulb Appearance
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Solution Overview
Problem
There is a need for an energy-efficient outdoor lamp that mimics the appearance of a vintage Edison bulb while being suitable for outdoor use and powered by a sustainable energy source.
Innovation Solution
A solar-powered lantern with a cylindrical housing, conical shade, and a simulated Edison bulb using LEDs, which includes a rechargeable battery charged by a solar panel and features a light sensor to activate the LEDs at dusk, providing a yellowish light similar to incandescent bulbs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a solar panel and rechargeable battery are used to power the lantern, then energy efficiency and sustainability are improved, but device complexity increases
Solution Approach 1:
The solar panel, rechargeable battery, LED bulb, and control circuitry are integrated into a single unified lantern assembly. The solar panel is mounted on the housing, the battery is contained within the housing, and all components work together as one complete lighting system, eliminating the need for separate charging devices or power sources.
Solution Approach 2:
The lantern is equipped with a solar panel that automatically charges the rechargeable battery during daylight hours without human intervention. The system includes automatic light sensing capabilities that trigger the LEDs to illuminate at dusk and turn off at dawn, making the lantern self-regulating and maintenance-free regarding power management.
2Use of energy by moving object
If LEDs are used to simulate an Edison bulb, then energy consumption is reduced, but visual authenticity deteriorates
Solution Approach 1:
The LED bulbs are specifically selected or programmed to emit a warm yellowish light that replicates the characteristic color temperature of vintage Edison incandescent bulbs. This color matching allows the LED to mimic the aesthetic qualities of the original bulb while maintaining the energy efficiency advantages of LED technology.
Solution Approach 2:
The LED bulb is designed to replicate the visual appearance and light emission characteristics of a traditional Edison bulb. The bulb includes a filament-like structure and glass envelope that copies the iconic Edison bulb design, while the LED internal structure reproduces the warm glow and visual effects of the original incandescent technology.
3Ease of operation
If automatic light sensing is implemented, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The lantern incorporates automatic light sensing capabilities that allow it to autonomously determine when to illuminate and when to remain off. The light sensor continuously monitors ambient light levels and automatically activates the LED bulb at dusk or when darkness is detected, and turns it off at dawn or when sufficient light is present, eliminating the need for manual user intervention.
Solution Approach 2:
The system includes a light sensor that provides feedback about ambient light conditions to the control circuitry. This feedback mechanism allows the lantern to automatically adjust its operation based on real-time environmental conditions, turning on when it detects darkness and turning off when it detects sufficient light, creating a closed-loop control system.
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 lantern offers an energy-efficient, sustainable, and aesthetically appealing lighting solution that simulates the look of an Edison bulb, utilizing solar power and LED technology to provide efficient and environmentally friendly outdoor lighting.
Implementation Method 1
A solar panel is disposed on the upper surface of the housing. A rechargeable battery is disposed in the housing, and the rechargeable battery is recharged with electrical energy generated by the solar panel.
Implementation Method 2
The light bulb is a simulated Edison bulb including an outer transparent or translucent shell encapsulating at least one elongated simulated filament defined by a plurality of LEDs powered by the rechargeable battery. In the preferred embodiment the LEDs produce light that is yellowish in color
Data Source
AI summary
A solar-powered lantern uses light-emitting diodes to simulate an old-fashioned Edison-type bulb. The lantern comprises a housing having an upper edge defining an upper surface, a lower edge defining a lower surface, and a sidewall between the upper and lower edges. The lower edge of the housing transitions into a shade portion that extends downwardly from the housing. In the preferred embodiment the housing is cylindrical, and the shade is a conical shade having an upper edge coinciding with the lower edge of the housing. A light bulb also extends downwardly from the lower surface of the housing, and the light bulb is surrounded by a cage. A solar panel is disposed on the upper surface of the housing. A rechargeable battery is disposed in the housing, and the rechargeable battery is recharged with electrical energy generated by the solar panel.