LED Lamp Replacement with Light Transmissive Medium
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current LED-based lighting devices fail to replicate the shape and form factor of traditional incandescent lamps, despite advancements in semiconductor lighting, leading to a need for energy-efficient solutions that mimic the conventional incandescent form factor.
Innovation Solution
A lighting device featuring a base with electrical contacts, an AC to DC power unit, and a light transmissive medium that conducts and radiates light outward, structured to resemble a filament or the outer envelope of a conventional incandescent lamp, allowing for efficient light distribution and replacement of parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If LED-based lighting devices are designed to improve energy efficiency, then energy consumption is reduced, but the shape and form factor diverge from traditional incandescent lamps
Solution Approach 1:
The patent divides the lighting device into separate functional modules: LED light sources, light guides, reflectors, and diffusers. This segmentation allows independent optimization of each component - LEDs provide energy efficiency while light guides and reflectors are designed to replicate the visual characteristics of incandescent bulbs, resolving the contradiction between energy savings and form factor fidelity
Solution Approach 2:
The patent introduces light guides as intermediary optical elements that transport light from LED sources to the bulb exterior. These light guides act as mediators between the compact LED structure and the traditional bulb shape, enabling energy-efficient LED operation while maintaining the familiar incandescent form factor through careful optical design
2Illumination intensity
If light guides and reflectors are used to direct light from LEDs, then light distribution is improved, but the structural complexity increases
Solution Approach 1:
The patent combines multiple optical functions into integrated components. Light guides are designed to simultaneously perform light transport, diffusion, and shaping functions. Reflectors are integrated directly with the light guide structures, eliminating the need for separate mounting and alignment mechanisms, thereby reducing structural complexity while maintaining effective light distribution
Solution Approach 2:
The light guide structures are designed to perform multiple functions: transporting light from LEDs, distributing light uniformly across the bulb surface, and shaping the overall light pattern. This multi-functionality reduces the number of separate components needed, simplifying the overall structure while achieving effective illumination
3Use of energy by moving object
If LED components are integrated into a compact form, then energy efficiency is maintained, but the ability to replace individual parts is reduced
Solution Approach 1:
The patent designs the lighting device with clearly defined modular segments: replaceable LED modules, separate light guide assemblies, and interchangeable bulb envelopes. This segmentation maintains energy efficiency through optimized LED integration while enabling easy replacement of individual components, resolving the contradiction between compact integration and repairability
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 provides a lightweight, energy-efficient, and cost-effective LED-based lighting solution that closely resembles traditional incandescent lamps, offering improved light distribution and the ability to replace individual components, reducing waste and enhancing ecological and economic benefits.
Implementation Method 1
Compact power conversion units have also been developed which are efficient in their conversion of household AC voltage levels to a lower DC level suitable for powering LED and other similar semiconductor devices
Implementation Method 2
at least one LED device connected to the power unit
Implementation Method 3
Recent developments in the design and powering of semiconductor based lighting devices, particularly those known as LEDs
Implementation Method 4
a light transmissive medium coupled to receive light from one or more LEDs and to radiate light outward. In the present invention, the light transmissive medium conducts light not only along its 'length' but also is structured or augmented to distribute light in directions substantially transverse to the direction at which it is initially introduced into the transmissive medium
Implementation Method 5
a light transmissive medium coupled to receive light from one or more LEDs and to radiate light outward
Data Source
AI summary
The present invention provides an energy efficient replacement for a standard incandescent lamp using LED devices which direct their light output into a light transmissive medium which is also capable of radiating the transmitted light outwardly in a plurality of directions. More particularly, the present invention provides an incandescent lamp replacement which is virtually identical in external form factor to the standard incandescent lamp.