LED Lighting Apparatus with Adjustable Light Distribution
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Solution Overview
Problem
Conventional LED lighting apparatuses face challenges in adjusting light distribution patterns and heat dissipation, requiring multiple housing structures and resulting in inefficient heat dissipation and increased costs due to the need for lenses to modify light distribution.
Innovation Solution
An LED lighting apparatus with a support panel featuring vertically oriented heat dissipation fins and a reflection surface that forms various light distribution patterns by reflecting light emitted from LEDs, allowing for adjustable light distribution without changing the housing structure and improving heat dissipation through natural convection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the light emission surface of the LED is disposed in parallel with the ground, then the housing structure is simple, but the light distribution pattern cannot be adjusted
Solution Approach 1:
The invention divides the housing into multiple adjustable modules: the substrate can be rotated independently, and the reflection surface can be adjusted separately. This segmentation allows each component to be optimized for its specific function while maintaining overall system simplicity.
Solution Approach 2:
The invention introduces dynamic adjustability to the housing structure through rotation mechanisms for the substrate and adjustment mechanisms for the reflection surface. This allows the light distribution pattern to be changed without redesigning the entire housing structure.
2Adaptability or versatility
If different housing structures are used to adjust light distribution, then the light distribution pattern can be optimized, but the device complexity and manufacturing cost increase
Solution Approach 1:
The invention creates a universal housing structure that can achieve multiple light distribution patterns through adjustment mechanisms rather than requiring different housing designs for different applications. The same housing can be used for various lighting scenarios by adjusting the substrate angle and reflection surface position.
3Device complexity
If heat dissipation fins are disposed in parallel with the ground, then the housing structure is simple, but the heat dissipation effect is poor
Solution Approach 1:
The invention employs vertically oriented heat dissipation fins with curved or inclined surfaces that promote natural convection currents. The vertical orientation and curved geometry of the fins enhance air flow and heat transfer efficiency compared to flat horizontal fins.
4Adaptability or versatility
If a lens is employed to convert light distribution patterns, then the light distribution can be adjusted, but the manufacturing cost increases and illumination intensity decreases
Solution Approach 1:
The invention replaces optical elements (lenses) with mechanical adjustment mechanisms. Instead of using a lens to reshape the light beam, the system uses adjustable substrate orientation and reflection surface positioning to achieve the desired light distribution pattern, eliminating the need for additional optical components.
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 flexible light distribution patterns and enhanced heat dissipation, extending the lifespan of LEDs while reducing manufacturing costs by using a single housing structure for various applications.
Implementation Method 1
since heat dissipation fins at an opposite side of the light emission surface of the LED according to the related art are disposed in parallel with the ground, air therein does not perform convection so that a heat dissipation effect is low
Implementation Method 2
a reflection surface fixed to the support panel to be located on a front surface of the substrate, and forms a light distribution pattern on the ground by reflecting light emitted from the plurality of LEDs
Data Source
Figure 1
Figure 2
Figure 3~5
AI summary
The present invention relates to an LED lighting apparatus having an adjustable light distribution, comprising: a support panel on which a plurality of heat dissipation fins are disposed on a back surface thereof, the support panel providing a parallel front part which is not parallel to the ground; a board on which a plurality of LEDs are mounted, and being coupled to said front part of the support panel; and a reflection part fixed to the support panel so as to be disposed on the front surface of said substrate, and reflecting light emitted from said plurality of LEDs to provide a curved reflection surface which forms light distribution patterns on the ground. The light emission surface of the LED is not disposed parallel to the ground. The light emitted from the LED is distributed through the reflection part having a curved surface reflecting the light emitted from the LED toward the ground. Various distribution patterns may be formed according to the shape of said curved surface of the reflection part, the LED arrangement, the angle between the light emission surface of the LED and the ground, or whether or not a plane reflection part re-reflecting the light reflected by the curved surface of the reflection part exists. Thus, the LED lighting apparatus may be applied to various lighting fields using the same structure.