Light Distribution Modules for Shadow-Free LED Corn Lamps
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Solution Overview
Problem
Existing LED corn lamps suffer from insufficient light divergence, resulting in dark regions and shadows due to concentrated light emission in the normal direction of the lamp's side wall, particularly at the ends.
Innovation Solution
A light distribution element with at least two first light distribution modules arranged along the height and circumferential direction of the lamp, featuring divergent light configurations to scatter light evenly, eliminating dark regions and shadows by increasing the maximum angle difference of emitted light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If LED lamp beads are arranged along the circumferential side wall of the installation cylinder, then the lamp structure is simple and easy to manufacture, but the light divergence is insufficient resulting in dark regions and shadows
Solution Approach 1:
A light diffusing plate is introduced as an intermediary component between the LED lamp beads and the external environment. This plate scatters the concentrated light from the LED beads in multiple directions, effectively improving light divergence and eliminating dark regions while maintaining the simple cylindrical lamp structure.
Solution Approach 2:
The patent transitions from one-dimensional light emission (normal direction of side wall) to three-dimensional light distribution by arranging LED lamp beads along the circumferential direction and using the light diffusing plate to scatter light in multiple spatial dimensions, thereby improving overall light coverage and divergence.
2Device complexity
If light is emitted concentrated in the normal direction of the side wall, then the lamp bead arrangement is simple, but dark regions and shadows appear especially at the ends of the lamp
Solution Approach 1:
The lamp is divided into multiple LED lamp beads arranged along the circumferential direction of the installation cylinder. This segmentation allows light to be emitted from multiple locations around the cylinder, improving uniformity and reducing dark regions at the ends while keeping each individual lamp bead simple.
Solution Approach 2:
The patent changes the light emission parameters by introducing a light diffusing plate that alters the light propagation direction and distribution. This modifies the light intensity distribution pattern from concentrated normal emission to scattered multi-directional emission, improving uniformity without complicating the lamp bead arrangement.
3Adaptability or versatility
If the lamp emits light 360° in circumferential direction, then the lamp is called LED corn lamp with omnidirectional emission, but the light divergence remains insufficient creating dead angles
Solution Approach 1:
The light diffusing plate serves as a mediator that enhances the omnidirectional emission capability. It receives light from the LED beads arranged circumferentially and scatters it further in all directions, ensuring complete 360° coverage without dead angles while maintaining the LED corn lamp's versatile omnidirectional emission characteristic.
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 360° uniform light distribution, enhancing irradiation coverage and eliminating dark regions without dead angles, improving energy utilization and lighting experience.
Implementation Method 1
each of the at least two first light distribution modules has a divergent light configuration from the light incident surface to the light output surface
Data Source
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AI summary
The present disclosure discloses a light distribution element and a lamp, the light distribution element is configured to distribute light for a light source, and the light distribution element includes at least two first light distribution modules arranged along a height direction of the light distribution element, the at least two first light distribution modules surround the light source in a circumferential direction, each of the at least two first light distribution modules includes a light incident surface and a light output surface that are away from each other, and the light incident surface is arranged opposite to the light source, each of the at least two first light distribution modules has a divergent light configuration from the light incident surface to the light output surface; and a depression region is between two adjacent first light distribution modules, the above scheme can solve the problem of dark regions in current lamps.