Annular Lamp with Concave Sphere Reflector for Uniform Illumination
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Solution Overview
Problem
Conventional lamps with multiple light sources suffer from uneven illumination due to brightness variations at different locations, which is not adequately addressed by existing technologies.
Innovation Solution
An annular-arranged lamp with a concave sphere reflection device is designed, where light emitting devices are installed around an annular heat dissipation device, with light beams being reflected and refracted to create a unified light source by a concave spherical reflection unit, ensuring the light projection axis is between 90 degrees and 180 degrees relative to the preset direction, forming a coaxial projection surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple light sources are used in conventional lamps, then the illumination coverage is improved, but the brightness becomes uneven at different locations
Solution Approach 1:
The patent employs a concave spherical reflector to redirect light from multiple LED sources. The curved spherical surface reflects and redirects light rays to create a more uniform illumination pattern, transforming the uneven brightness distribution into a uniform projected light field while maintaining wide area coverage
Solution Approach 2:
The patent arranges multiple light emitting diodes in a three-dimensional configuration around the spherical reflector, with LEDs positioned at different spatial locations and orientations. This spatial arrangement, combined with the spherical reflection, distributes light more evenly across the projection area, solving the brightness uniformity problem while maintaining extensive illumination coverage
2Illumination intensity
If light emitting devices are arranged annularly around heat dissipation device, then the light projection uniformity is improved, but the device structure becomes more complex
Solution Approach 1:
The patent integrates the heat dissipation device and the light emitting array into a unified structure. The annular heat dissipation device serves dual purposes: it manages thermal energy from the LEDs and provides the mounting structure for the light emitting elements, thereby reducing overall structural complexity while achieving uniform light projection
Solution Approach 2:
The annular heat dissipation device performs multiple functions simultaneously: it acts as a thermal management system, a structural support framework, and a mounting platform for the light emitting diodes. This multi-functionality reduces the number of separate components needed, simplifying the overall device structure while maintaining uniform light output
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
This design enhances illumination uniformity by reflecting and refracting light beams to a preset projection range, effectively addressing the issue of uneven brightness and forming a unified light source.
Implementation Method 1
light beams of the light emitting devices (110) are reflected by the reflection device with concave sphere (103)
Implementation Method 2
annular heat dissipation device made of a heat conductive material
Data Source
Figure 1~2
Figure 3~4
AI summary
The annular-arranged lamp capable of backward projecting by concave sphere provided by this invention is mainly provided with a side of an annular heat dissipation device being installed with light emitting devices (102) wherein the lamp is installed with two or more than two light emitting devices (110) arranged in a circular or polygonal means, and the light projecting axial line of each light emitting device (110) is projected towards a reflection device with concave sphere (103) disposed above the annular heat dissipation device (101), light beams of the light emitting devices (110) are reflected by the reflection device with concave sphere (103) then refracted to a preset projection range, thereby forming a unified light source.