LED Bulb with Prismatic Radiant Module for Incandescent Aesthetic
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Solution Overview
Problem
Current LED lighting solutions fail to replicate the aesthetic appearance of incandescent bulbs used in urban lighting, such as the harbor of Geneva, which features a softer, warmer hue and distinct central and peripheral luminous zones, due to their different physical principles and optical characteristics.
Innovation Solution
A LED light bulb with a radiant module shaped like a spheroid or prismatic rod, housed in a powdered glass bulb, and an electronic module that adjusts the supply voltage to achieve a color temperature between 2000 and 3000 Kelvin, mimicking the appearance of incandescent bulbs by using a combination of LEDs and a stabilized current intensity converter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If LED bulbs are used to replace incandescent bulbs, then energy efficiency and lifespan are improved, but the aesthetic appearance and optical characteristics are worsened
Solution Approach 1:
The patent divides the LED light source into multiple individual LEDs (at least three) arranged in a specific spatial configuration within the bulb. This segmentation allows each LED to contribute to different zones of light emission, enabling the creation of distinct central and peripheral luminous zones that replicate the aesthetic appearance of incandescent bulbs while maintaining LED energy efficiency and longevity.
2Use of energy by moving object
If LED bulbs are used to replace incandescent bulbs, then energy consumption is reduced, but the color temperature and light spectrum are worsened
Solution Approach 1:
The patent applies local quality by positioning LEDs at specific locations within the bulb to create different light characteristics in different zones. The arrangement of at least three LEDs in specific spatial configurations enables the creation of a warm central zone with a color temperature between 2000-3000K, while the periphery remains less luminous, thus replicating the local optical qualities of incandescent bulbs with energy-efficient LED technology.
3Volume of moving object
If multiple LEDs are arranged in a restricted volume, then the compactness is improved, but the optical simulation of incandescent wire arrangement becomes more difficult
Solution Approach 1:
The patent utilizes three-dimensional spatial arrangement of multiple LEDs within the bulb volume, positioning them at different heights and radial distances from the bulb axis. This dimensional arrangement allows the compact LED module to optically simulate the extended wire configuration of incandescent bulbs, creating distinct central and peripheral zones that would be impossible to achieve with a single point source or simple linear arrangement.
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 effectively simulates the optical characteristics of incandescent bulbs, providing a warm hue and distinct luminous zones, while offering a longer lifespan and reduced intensity, thus maintaining the desired aesthetic appeal in public lighting.
Implementation Method 1
a radiant module (5) comprising a set of LEDs (4)
Implementation Method 2
the bulb is made of powdered glass
Data Source
Figure 1
Figure 2
AI summary
The lamp has a base with a metal cover, a bulb (3) and an LED assembly housed in the bulb. The bulb is in shape of pear lamp and formed from powdered glass. The assembly is arranged on a radiant module (5) whose volume is less than or equal to 4 cubic centimeters. The radiant module is formed in shape of a prismatic rod whose longitudinal axis is perpendicular to an axis of symmetry of the bulb. The rod has three faces, where each face contains five LEDs chosen from ceiling mount device (CMD) type LEDs. An electronic module housed in the base includes a stabilized current intensity converter.