Ambient Directional LED Light Fixture with Adjustable Bar
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Solution Overview
Problem
Conventional track lighting systems require a choice between general lighting or directional lighting, often resulting in inadequate light intensity for tasks or dark areas, and typically require multiple junction boxes and larger fixtures with higher power consumption and thermal issues.
Innovation Solution
A track lighting system combining a general light source and directional light sources into a single fixture using LEDs, with a canopy that encloses the LED driver, printed circuit board, and secondary light sources, allowing adjustable positioning and direction, and utilizing energy-efficient LEDs to reduce thermal profile and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional track lighting systems use general lighting fixtures, then ambient lighting is provided, but light intensity for tasks is insufficient
Solution Approach 1:
The patent combines general lighting and directional lighting functions into a single track light fixture. The fixture includes a canopy with general LED lighting and an adjustable directional light bar with secondary LED sources, allowing both ambient illumination and focused task lighting from one integrated unit.
Solution Approach 2:
The track light fixture serves multiple functions simultaneously: it provides general ambient lighting through the canopy LEDs and directional task lighting through the adjustable light bar. This multi-functional design eliminates the need to choose between general or directional lighting options.
2Illumination intensity
If conventional track lighting systems use directional lighting fixtures, then task lighting is improved, but dark areas remain unlit
Solution Approach 1:
The fixture merges the coverage function of general lighting with the intensity function of directional lighting. The canopy provides wide-area ambient illumination while the adjustable light bar delivers concentrated light intensity for specific tasks, both operating from the same fixture.
Solution Approach 2:
The single fixture universally provides both wide coverage and focused intensity by incorporating two distinct lighting systems: the canopy for ambient coverage and the light bar for directed task lighting, allowing simultaneous achievement of both goals.
3Illumination intensity
If conventional track lighting systems provide both general and directional lighting, then lighting coverage is improved, but power consumption increases
Solution Approach 1:
The patent transitions from traditional high-power lighting sources to LED technology for both the canopy and light bar. LEDs provide the same or better illumination coverage and intensity while consuming significantly less power, changing the energy parameter of the lighting system.
4Illumination intensity
If conventional track lighting systems provide both general and directional lighting, then lighting coverage is improved, but thermal issues arise
Solution Approach 1:
The patent changes the thermal parameter by using LED technology instead of traditional incandescent or halogen sources. LEDs generate minimal heat while providing the required illumination coverage, eliminating thermal management issues in the fixture design.
5Adaptability or versatility
If conventional track lighting systems combine multiple lighting functions, then lighting versatility is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple lighting functions into a single integrated fixture with a unified power source and control system. The canopy and light bar are electrically connected through a single LED driver, simplifying the overall system architecture despite the multiple lighting functions.
6Adaptability or versatility
If conventional track lighting systems use multiple junction boxes for dual lighting functions, then installation flexibility is improved, but installation complexity increases
Solution Approach 1:
The patent combines the electrical connections for both general and directional lighting into a single junction box. The LED driver receives power from one junction box and distributes it to both the canopy and light bar, eliminating the need for multiple junction boxes and simplifying installation.
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
Provides improved lighting for tasks and ambient lighting with lower power consumption, allowing dual switching and installation in a single junction box, while maintaining a compact design suitable for various ceiling heights without sacrificing light intensity or comfort.
Implementation Method 1
A track lighting system electrically wired to a junction box and installed to a mounting surface such as a ceiling or like building framework, the track lighting system comprising a general light source such as a LED driver, a printed circuit board, one or more LEDs mounted thereon
Implementation Method 2
The canopy includes a light transmitting lens for emitting the LED light
Implementation Method 3
an optional light reflector preferably disposed at about the center of the array of LEDs
Data Source
AI summary
A lighting system having a general light source and directional light sources disposed on a light bar pendant, mounted, or extending from the general light source. The general light source is flush mounted to the ceiling and includes an array of LEDs, powered by an LED driver, all enclosed in a canopy having a light-transmitting lens, and one or more directional light sources containing LEDs are adjustably, and movably mounted to the light bar. Electrical conductor paths on or within the light bar connect the directional light sources to the main power supply or LED driver.