Linear LED Fixture Switching for Color Temperature and Luminance
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Solution Overview
Problem
LED lighting systems are limited to a specific color temperature and luminance after installation, requiring custom manufacturing for each setting, which is inefficient and lacks flexibility.
Innovation Solution
A linear LED light fixture with a switch assembly that controls color temperature and luminance by directing current to multiple strings of LEDs with different color temperatures and luminance levels, allowing modular manufacturing and assembly to fit various space sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If custom manufactured LED light fixtures are used to produce light at a specific color temperature and lumen output, then the lighting system provides consistent color temperature and luminance, but the manufacturing process becomes complex and inflexible
Solution Approach 1:
The LED array is divided into multiple independent strings, each containing LEDs of the same color temperature. This segmentation allows different strings to be manufactured separately with consistent color temperatures, then combined in various configurations to create fixtures with different overall color temperatures and luminance levels, eliminating the need for complete custom manufacturing of each fixture type
Solution Approach 2:
The fixture design incorporates multiple LED strings that can serve different functions depending on configuration. The same physical fixture can produce different color temperatures and luminance outputs by activating different combinations of LED strings, making a single fixture design universal for multiple lighting scenarios rather than requiring custom fixtures for each application
2Adaptability or versatility
If LED fixtures are custom manufactured for each setting, then the lighting system fits specific space requirements, but the installation time and productivity decrease
Solution Approach 1:
The LED array is divided into multiple independent strings, each containing LEDs of the same color temperature. This segmentation allows different strings to be manufactured separately with consistent color temperatures, then combined in various configurations to create fixtures with different overall color temperatures and luminance levels, eliminating the need for complete custom manufacturing of each fixture type
Solution Approach 2:
The fixture incorporates a switch assembly that dynamically configures which LED strings are active and how they are connected electrically. This dynamic reconfiguration capability allows a single fixed fixture to adapt to different space requirements by changing its operational characteristics rather than requiring physical customization during installation
3Use of energy by moving object
If fixed color temperature LED fixtures are installed, then energy efficiency is improved, but the ability to control color temperature and luminance is limited
Solution Approach 1:
The fixture incorporates a switch assembly that dynamically configures which LED strings are active and how they are connected electrically. This dynamic reconfiguration capability allows a single fixed fixture to adapt to different space requirements by changing its operational characteristics rather than requiring physical customization during installation
Solution Approach 2:
The system allows changing of operating parameters (color temperature and luminance level) by reconfiguring the electrical connections between driver circuit and LED strings through the switch assembly. Different configurations change the effective parameters of the lighting output without requiring physical replacement of fixtures, maintaining energy efficiency while providing operational flexibility
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 consistent color temperature and luminance across different fixture lengths, simplifying manufacturing and allowing flexible, efficient lighting solutions for diverse environments.
Implementation Method 1
an array of light emitting diodes (LEDs) that includes a first plurality of LEDs that produces a first light having a first color temperature
Data Source
AI summary
A linear light-emitting diode (LED) lighting apparatus may include an array of light emitting diodes (LEDs) that may include a first plurality of LEDs that produces a first light having a first color temperature. The first plurality of LEDs aligns within a first linear shape. The second plurality of LEDs may produce a second light having a second color temperature different from the first color temperature. The second plurality of LEDs aligns within a second linear shape. The lighting apparatus may also include a driver circuit that outputs a plurality of currents and a switch assembly that may couple to the driver circuit. The switch assembly may include a first switch that may cause the driver circuit to output one of the plurality of currents and a second switch that may cause the one of the plurality of currents to couple to the first plurality of LEDs, the second plurality of LEDs, or both.