Ring-Arranged LED Spotlights for Fluorescent-Like Wide-Area Illumination
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Solution Overview
Problem
Existing lighting systems with fluorescent lamps face challenges in transitioning to LED technology, particularly for ring-shaped lamps, leading to unusable luminaires and requiring complete redesigns, which are costly and inefficient.
Innovation Solution
A lighting device with LED spotlights arranged in a ring around an axis of symmetry, inclined to expand the beam angle, allowing for large-area illumination and uniformity, simulating the radiation characteristics of annular fluorescent lamps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If LED spotlights are arranged in a ring with inclination to expand beam angle, then large-area illumination and uniformity are achieved, but device complexity increases
Solution Approach 1:
The lighting device divides the illumination task into multiple spotlights arranged in a ring, each with a specific beam angle and inclination. This segmentation allows the system to cover a wider area with more uniform illumination compared to a single light source, while maintaining manageable complexity through modular spotlight units.
Solution Approach 2:
The spotlights are inclined relative to the ring plane, creating an asymmetric arrangement that expands the effective beam angle. This asymmetric inclination optimizes light distribution across the illumination area, achieving uniformity that would not be possible with symmetric parallel alignment.
2Device complexity
If spotlights are arranged parallel to axis of symmetry, then device structure is simple, but illumination area is limited and uniformity is poor
Solution Approach 1:
Instead of arranging spotlights parallel to the axis of symmetry (one-dimensional alignment), the invention positions them in a ring configuration with radial inclination (adding angular dimensions). This dimensional change expands the illumination area significantly while maintaining structural simplicity through the regular ring pattern.
3Illumination intensity
If annular fluorescent lamp is used, then radiation characteristics are achieved, but mercury-containing light sources are prohibited and energy efficiency is low
Solution Approach 1:
The invention replaces the mercury-containing fluorescent lamp mechanism with LED spotlights. This substitution eliminates harmful mercury substances and improves energy efficiency while achieving comparable or superior radiation characteristics through the optimized arrangement of multiple LED sources.
Solution Approach 2:
The invention changes the light source parameters from fluorescent to LED technology, and modifies the arrangement parameters (ring configuration, inclination angles, beam angles) to achieve the desired radiation characteristics. These parameter changes enable energy efficiency improvement while maintaining or enhancing illumination performance.
4Adaptability or versatility
If complete redesign of lighting system is carried out, then new LED functionality is achieved, but technical and financial effort is considerable
Solution Approach 1:
The lighting device is designed with universal features that allow it to replace various types of existing luminaires (ceiling lights, pendant lights, recessed lights). The ring-shaped LED module can be adapted to different mounting configurations and functional requirements, reducing the need for complete system redesign and accelerating conversion to LED technology.
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 a cost-effective conversion of lighting systems by maintaining radiation characteristics, achieving uniform illumination without redesign, and allowing for easy integration of functional modules.
Implementation Method 1
The lighting device comprises a number of spotlights, in particular LED spotlights
Implementation Method 2
the main beam directions of the spotlights are inclined away from the axis of symmetry by a predefined angle of inclination to expand the maximum beam angle of the lighting device
Implementation Method 3
the light cones generated by the spotlights overlap. This makes it possible to achieve large-area room illumination or soft room light with smooth brightness transitions
Data Source
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AI summary
A lighting device (1) is provided. The lighting device (1) comprises a number of radiators (4), each with a predefined beam angle and a predefined main beam direction. The radiators (4) are arranged substantially annularly around an axis of symmetry such that the main beam directions of the radiators (4) are inclined away from the axis of symmetry by a predefined angle of inclination to expand a maximum beam angle of the lighting device (1).