LED Lamp Reflective Insert for Balanced Light Distribution
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Solution Overview
Problem
Conventional LED lamps suffer from inefficient light distribution due to the direct positioning of the LED assembly at the top of the bulb, resulting in most light radiating upward, which limits their application in environments requiring balanced light coverage.
Innovation Solution
An LED lamp design featuring a heat dissipating base, an LED assembly, a bulb, and a reflective insert inside the bulb that reflects a portion of the light generated by the LEDs in a downward direction, allowing adjustable light distribution by varying the position and configuration of the reflective insert.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the LED assembly is positioned directly on top of the base, then the structure is simple and manufacturing is easy, but the light distribution is unbalanced with most light radiating upward
Solution Approach 1:
A reflective insert is introduced as an intermediary component between the LED assembly and the bulb interior. This insert reflects downward-directed light upward, creating balanced light distribution without complicating the overall manufacturing process. The insert can be a simple reflective surface or panel that redirects light paths.
Solution Approach 2:
The patent introduces a vertical dimension to light redistribution by placing a reflective surface at a lower height within the bulb. This creates a new light path dimension where downward light is reflected upward, complementing the direct upward light from LEDs to achieve balanced illumination.
2Device complexity
If the LED assembly is positioned directly on top of the base, then the device structure is simple, but the light radiation pattern is fixed and lacks versatility
Solution Approach 1:
The reflective insert is designed to be adjustable rather than fixed, allowing the light radiation pattern to be dynamically changed. The insert can be positioned at different heights or angles within the bulb to create various light distribution patterns suitable for different applications.
Solution Approach 2:
The reflective insert serves multiple functions: it redirects downward light upward, adjusts light distribution patterns, and can be positioned to create different radiation angles. This single component provides versatility for various lighting applications without requiring multiple specialized fixtures.
3Illumination intensity
If a reflective insert is added inside the bulb, then light distribution control is improved, but the device complexity increases
Solution Approach 1:
The bulb interior is segmented into different functional zones using the reflective insert. The insert creates distinct light paths (direct upward light vs. reflected upward light) that can be independently controlled by adjusting the insert's position, allowing precise light distribution control.
Solution Approach 2:
The reflective insert acts as a simple intermediary component that mediates between the LED light source and the bulb environment. It provides light redistribution functionality through a single, relatively simple component rather than requiring complex optical systems or multiple elements.
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 controlled light distribution in both upward and downward directions, enhancing the lamp's versatility and efficiency by allowing customizable light radiation patterns.
Implementation Method 1
a reflective insert disposed inside the bulb and configured to reflect a portion of light generated by the LED assembly in a substantially downward direction
Implementation Method 2
An LED lamp includes a heat dissipating base. The LED lamp further includes an LED assembly, including a plurality if LEDs. The LED assembly is in thermal communication with the heat dissipating base
Data Source
AI summary
An LED lamp includes a heat dissipating base. The LED lamp further includes an LED assembly, including a plurality if LEDs. The LED assembly is in thermal communication with the heat dissipating base. The LED lamp further includes a bulb disposed over the LED assembly and coupled to the heat dissipating base. The LED lamp further includes a reflective insert disposed inside the bulb and configured to reflect a portion of light generated by the LED assembly in a substantially downward direction.