Wide-angle linear LED lighting with polygonal lampshade
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Solution Overview
Problem
Conventional linear LED lighting devices have limited angular illumination capabilities and high manufacturing costs due to the need for specialized textured structures or diffusers, which restrict their application and efficiency.
Innovation Solution
A wide-angle linear LED lighting device is designed with a polygonal lampshade, a base, and at least two LED modules, where the included angle between the base and the installation part of the polygonal lampshade and the height of the raised part are optimized to widen the beam angle, increasing backside energy and spatial background brightness, and enhancing anti-glare functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional linear LED lighting devices use textured structures or diffusers to achieve desired light patterns, then the light distribution can be controlled, but the manufacturing cost increases and the structure becomes more complex
Solution Approach 1:
The patent removes the diffuser component from the lighting device structure. Instead of using a diffuser to scatter light, the invention relies on the inherent light-emitting characteristics of the LED beads and the geometric design of the lampshade to achieve uniform light distribution, thereby simplifying the overall structure and reducing manufacturing costs
Solution Approach 2:
The patent employs LED beads with different emission angles positioned at specific locations within the lampshade. By selecting LEDs with appropriate emission angles for different positions and optimizing their arrangement, the device achieves uniform light distribution without requiring additional diffusing elements, thus resolving the contradiction between light control and structural simplicity
2Illumination intensity
If conventional linear LED lighting devices use textured structures or diffusers to control light patterns, then the desired illumination can be achieved, but the manufacturing cost increases
Solution Approach 1:
The patent eliminates the diffuser component from the lighting device. By removing this additional component, the manufacturing process is simplified and costs are reduced, while the desired light patterns are still achieved through the geometric design of the lampshade and strategic placement of LED beads with varying emission angles
Solution Approach 2:
The patent changes the emission angle parameter of the LED beads used in different positions within the lampshade. By selecting LEDs with specific emission angles (e.g., 120°, 150°, 180°) for different locations and optimizing their arrangement, the device achieves controlled light patterns without requiring diffusers, thereby reducing manufacturing complexity and cost
3Device complexity
If conventional linear LED lighting devices have limited angular illumination capabilities, then the structure can be simpler, but the luminous efficiency and application range are reduced
Solution Approach 1:
The patent uses LED beads with different emission angles at different positions within the lampshade to optimize light distribution in various directions. This localized optimization of LED characteristics enables the device to achieve wide-angle illumination and high luminous efficiency while maintaining a relatively simple overall structure without requiring complex optical systems
Solution Approach 2:
The patent transitions from a single-direction or limited-angle illumination approach to a multi-dimensional light distribution strategy by arranging LEDs with various emission angles in different spatial positions within the lampshade. This dimensional approach to light emission expands the illumination coverage and improves luminous efficiency while keeping the structure simple
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 achieves improved light-outputting characteristics with increased beam angles and uniform light scattering, enhancing backside energy and spatial background brightness while reducing manufacturing costs by simplifying the device structure.
Implementation Method 1
the light beams emitted by the at least two LED modules are outputted from different lateral parts of the polygonal lampshade... the light beams are scattered at a wide angle
Data Source
AI summary
A wide-angle linear LED lighting device includes a polygonal lampshade, a base and at least two LED modules. The polygonal lampshade includes at least two lateral parts and an installation part. The base is disposed within the polygonal lampshade and disposed on an inner surface of the installation part. There is an included angle between the base and the inner surface of the installation part. The at least two LED modules are disposed on the base. The light beams emitted by the at least two LED modules are outputted from different lateral parts of the polygonal lampshade. The light-outputting characteristics of the wide-angle linear LED lighting device are correlated with the included angle and the at least two LED modules.