Inclined LED Lighting Device for Wide Distribution
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Solution Overview
Problem
Conventional lighting devices using light-emitting diodes (LEDs) have limited light-distribution characteristics, inadequate heat dissipation, and assembly efficiency, leading to suboptimal performance in general lighting applications.
Innovation Solution
A lighting device design featuring a protrusion with inclined surfaces and a flexible circuit board, where LEDs are mounted inwardly and alternately on the protrusion and side surfaces, enhancing light distribution and heat dissipation, and allowing for efficient assembly and operation with AC and DC driving LEDs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light-emitting devices are configured to emit light in one direction, then the device structure is simple, but the light-distribution characteristics are insufficient for general lighting devices
Solution Approach 1:
The patent applies dimensionality change by transitioning from a single-direction light emission configuration to a multi-directional emission structure. Multiple light-emitting devices are arranged at different angular positions (e.g., 0°, 45°, 90°, 135°) around the optical axis, creating three-dimensional light distribution. This resolves the contradiction by maintaining relatively simple individual device structures while achieving comprehensive spatial illumination through geometric arrangement.
2Temperature
If conventional lighting device structures are used, then assembly is straightforward, but heat dissipation characteristics are inadequate
Solution Approach 1:
The patent applies segmentation by dividing the heat dissipation function into separate modular components. Each light-emitting device module includes its own heat dissipation structure (such as heat sinks or thermal management components), allowing independent assembly and optimization. This enables effective heat dissipation through distributed thermal management while maintaining ease of manufacture via modular assembly procedures.
3Productivity
If light-emitting devices are arranged to improve light distribution, then luminous efficacy improves, but assembly complexity increases
Solution Approach 1:
The patent applies universality by designing standardized, multi-functional mounting structures that simultaneously achieve multiple objectives. The optical module employs universal mounting interfaces and standardized positioning features that enable precise angular alignment for optimal light distribution while simplifying the assembly process. This allows high luminous efficiency through optimized geometric arrangement without proportionally increasing assembly complexity, as the same standardized structures serve both optical alignment and mechanical assembly functions.
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 design achieves wide light-distribution characteristics, excellent heat-dissipation capabilities, and improved assembly efficiency, reducing hot spots and enhancing overall performance in lighting devices.
Implementation Method 1
The base may have a heat-dissipation function.
Implementation Method 2
General light-emitting devices emit light through recombination of electrons and holes between n- and p-type semiconductor layers.
Data Source
AI summary
Disclosed is a lighting device having wide light-distribution characteristics. The lighting device includes a base; a protrusion disposed on the base; and a light emitting module disposed on the protrusion; wherein the light emitting module comprises a plurality of light emitting diodes inclined inward with respect to the a protruding direction of the protrusion. Accordingly, the lighting device can provide wide light-distribution characteristics.