Rotatable LED Lamp Module for Asymmetric Light Emission
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Solution Overview
Problem
Existing LED lamps emit light symmetrically with respect to their main axis, limiting the ability to achieve alternative light emission patterns without additional specialized components.
Innovation Solution
An LED lamp design featuring a rotatable LED module relative to a threaded base, allowing for asymmetric light emission by limiting the module's rotation to 360° or less, with a large heat sink for effective cooling and electrical connections ensuring reliable operation across all rotational positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the LED module is made rotatable relative to the base, then the light emission direction can be adjusted, but the device complexity increases
Solution Approach 1:
The LED module is made rotatable relative to the base, transforming a static structure into a dynamic one. This allows the light emission direction to be adjusted by rotating the module, providing adaptability without requiring multiple separate lamps or complex mechanical adjustments.
Solution Approach 2:
The lamp is divided into separable components: the base and the LED module. This segmentation allows the module to be rotated independently relative to the base, enabling directional adjustment while keeping the overall structure relatively simple and manageable.
2Volume of moving object
If the LED module is arranged asymmetrically with respect to the main axis, then space can be saved, but the light emission becomes directional and less versatile
Solution Approach 1:
The LED module is arranged asymmetrically with respect to the main axis of the base, allowing compact space utilization. The asymmetrical arrangement, combined with rotatability, enables the lamp to achieve both small size and directional adjustability, as the module can be rotated to different positions to emit light in various directions.
3Temperature
If the heat sink is made large for effective cooling, then heat dissipation improves, but the lamp becomes harder to handle and install
Solution Approach 1:
The heat sink is designed with localized cooling features concentrated around the LED module, where heat generation occurs. This allows effective heat dissipation in the critical area without requiring the entire lamp structure to be large or complex, maintaining ease of handling while achieving adequate cooling.
4Ease of operation
If the LED module is limited in rotation to 360° or less, then the lamp can be easily installed by turning, but the full rotational range is restricted
Solution Approach 1:
The LED module is limited in rotation to 360° or less, which is sufficient for practical installation purposes. This partial rotational range is enough to achieve the desired light emission direction while avoiding the complexity of full 360° rotation mechanisms, balancing ease of installation with functional requirements.
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 adjustable light output in various lateral directions, providing a space-saving and efficient solution for LED lamps that can be used as replacements for incandescent lamps with enhanced heat dissipation and ease of handling.
Implementation Method 1
the LED lamp also has a heat sink for cooling the LED module
Implementation Method 2
heat sink for cooling the LED module
Implementation Method 3
heat sink for cooling the LED module
Implementation Method 4
LED lamp has an LED module (2) as light source
Implementation Method 5
LED module as light source
Data Source
Figure 1
AI summary
An LED lamp with an LED module (2) as a light source and a base (8) with a thread is designed such that light that can be emitted by the LED module (2) is emitted asymmetrically with respect to the main axis (L) defined by the thread.