Angled LED Mounting Plate for Bat-Wing Light Distribution
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Solution Overview
Problem
Existing LED lighting fixtures fail to replicate the uniform 'bat wing' light distribution, even luminosity, and favorable spacing criteria of traditional fluorescent fixtures, often resulting in inferior brightness and dark areas.
Innovation Solution
An LED light fixture with a mounting plate assembly featuring a flat central section and opposing downwardly angled sides, where LED strips are mounted to irradiate light at an angle of between 20° and 30°, and end caps are used to block dark areas, mimicking the appearance and performance of fluorescent fixtures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If LED strips are mounted to irradiate light at an angle (20°-30°) to achieve 'bat-wing' distribution, then light distribution uniformity is improved, but fixture complexity increases
Solution Approach 1:
The patent angles LED strips at 20°-30° relative to the fixture surface, transitioning from a conventional flat mounting arrangement to a three-dimensional angular configuration. This angular dimension enables light to be distributed across a wider area in a 'bat-wing' pattern, achieving uniform illumination that matches fluorescent fixture performance while maintaining a relatively simple fixture structure.
2Illumination intensity
If end caps are added to block dark areas, then luminosity evenness is improved, but device complexity increases
Solution Approach 1:
The patent extracts and addresses the specific problem of dark areas at the edges by adding end caps that extend beyond the LED strip boundaries. These end caps are specifically designed to block the dark areas created by the angled LED mounting, creating a more uniform luminosity distribution across the entire fixture surface without requiring complete redesign of the entire fixture system.
3Illumination intensity
If multiple strips of LEDs or larger diodes are used to increase brightness, then illumination intensity is improved, but device complexity and cost increase
Solution Approach 1:
The patent changes the mounting angle parameter of LED strips from the conventional 0° (flat) to 20°-30° angles. This parameter change allows existing LED strips to achieve superior light distribution and effective brightness without increasing the number of LEDs or using larger diodes, thereby maintaining device simplicity while improving illumination performance.
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 a 'bat-wing' distribution of light and favorable spacing criteria similar to fluorescent fixtures, ensuring even luminosity and eliminating dark areas, while maintaining an aesthetically identical appearance to traditional fluorescent fixtures.
Implementation Method 1
Mounted along the length of the angled sides are LED strips, whereby the LEDs irradiate light at an angle relative to the floor
Data Source
AI summary
An LED architectural luminaire for providing the lighting characteristics of a fluorescent luminaire comprises an LED mounting plate having angled sides for mounting strips of LEDs to allow the LEDs to illuminate the entire face of the luminaire to achieve bat-wing light distribution and a favorable spacing criteria of about 1.5.