Integrated Direct and Indirect LED Lighting Fixture
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Solution Overview
Problem
Existing lighting systems in commercial buildings and other structures often require additional light fixtures for indirect lighting, which can be costly and impractical to install and operate, especially when combined with downward lighting systems.
Innovation Solution
A light fixture design that incorporates both direct and indirect lighting arrays using light emitting diodes (LEDs), with an indirect lighting member to enhance illumination, and controllers for independent operation and color selection, allowing for efficient and versatile lighting configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional separate light fixtures are installed to provide indirect lighting, then indirect lighting capability is improved, but installation cost and operational cost increase
Solution Approach 1:
The patent combines direct and indirect lighting arrays into a single light fixture housing. The direct lighting array projects light downward while the indirect lighting array projects light transverse to the downward axis, allowing both lighting functions to be provided by one fixture rather than requiring separate fixtures for each function.
Solution Approach 2:
The light fixture is designed to perform multiple functions simultaneously: it provides both direct downward lighting and indirect transverse lighting through integrated arrays within a single housing structure. This multi-functionality eliminates the need for separate dedicated indirect lighting fixtures.
2Illumination intensity
If separate indirect lighting fixtures are installed, then illumination coverage is improved, but installation time and complexity increase
Solution Approach 1:
By integrating both direct and indirect lighting arrays within a single housing, the patent reduces the number of separate fixtures that need to be installed. This consolidation significantly reduces installation time and complexity while maintaining comprehensive illumination coverage through the combined output of both arrays.
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 provides effective and cost-efficient direct and indirect lighting solutions, reducing installation and operational costs while offering customizable lighting options, including color selection, to enhance illumination in various environments.
Implementation Method 1
a direct lighting array coupled to the housing that includes one or more light emitting diodes oriented to project light along a downward axis, and an indirect lighting array coupled to the housing that includes a plurality of light emitting diodes oriented to project light along axes extending transverse to the downward axis
Data Source
AI summary
A lighting fixture and method of providing lighting is provided herein that utilizes both direct and indirect light sources. The direct and indirect light sources can be provided in arrays of light emitting diodes (LEDs) oriented along desired axes. In some versions, the light fixtures described herein include a direct lighting array having one or more LEDs oriented to project light downwardly and an indirect lighting array having a plurality of LEDs oriented to project light in a transverse direction. Further, the light fixtures can include an indirect lighting member configured to be illuminated by the plurality of LEDs of the indirect lighting array. Additionally, or alternatively, the light fixtures described herein can include one or more controllers that are configured to independently operate the direct and indirect lighting arrays. Moreover, the indirect lighting array can be configured to emit light in a plurality of colors to visually convey information.