Adjustable Uplighting Lighting Device with Segmented Housing
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Solution Overview
Problem
Conventional lighting devices often lack efficient uplighting capabilities, limiting their ability to provide balanced and flexible lighting solutions, especially when suspended from structures, which restricts their application in various environments.
Innovation Solution
The design incorporates a housing with multiple walls forming a cavity, featuring optical features, louvers, and reflective components that direct light from multiple sources to create adjustable uplighting distributions, allowing light to be redirected into elevated areas of the ambient environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional lighting devices are suspended from structures, then downlighting is provided, but uplighting capability is limited or absent
Solution Approach 1:
The lighting device is segmented into multiple functional zones within the housing cavity: a first portion with louvers for downlighting and a second portion with reflective components for uplighting. This segmentation allows independent optimization of each lighting direction without requiring complete redesign of the entire device, thus adding uplighting capability while managing complexity through modular functional division.
Solution Approach 2:
The housing cavity serves multiple functions simultaneously: it contains light sources, accommodates louvers for downlighting control, incorporates reflective components for uplighting, and provides structural support. This multi-functionality allows the device to provide both downlighting and uplighting capabilities within a single suspended fixture, enhancing versatility without proportionally increasing complexity.
2Adaptability or versatility
If optical features are added to provide uplighting, then light distribution flexibility is improved, but device complexity increases
Solution Approach 1:
Different optical features are applied to different portions of the housing: the first portion contains louvers with specific orientations for downlighting control, while the second portion contains reflective components with specific geometries for uplighting. This local differentiation allows tailored light distribution for each direction without requiring complex optical systems throughout the entire device, achieving flexibility through localized optimization.
Solution Approach 2:
The patent utilizes the three-dimensional space within the housing cavity by positioning optical components at different locations and orientations. Louvers are arranged in the first portion with specific angular configurations, while reflective components are positioned in the second portion at different spatial coordinates. This dimensional arrangement allows multiple light distribution patterns to coexist without excessive component density, managing complexity through spatial optimization.
3Illumination intensity
If multiple louvers are disposed at a first location for downlighting, then downlighting control is improved, but uplighting efficiency decreases
Solution Approach 1:
The housing cavity is divided into distinct functional zones: the first portion contains multiple louvers optimized for downlighting control with specific orientations and spacing, while the second portion is dedicated to uplighting with reflective components. This segmentation ensures that downlighting control elements do not interfere with uplighting pathways, allowing each function to operate at optimal efficiency without compromising the other.
Solution Approach 2:
The reflective components in the second portion act as intermediaries that capture light from the light sources and redirect it upward through the housing walls. This intermediary mechanism allows uplighting to occur efficiently without requiring direct line-of-sight from light sources to the exterior, bypassing the obstruction created by louvers in the first portion and maintaining uplighting efficiency despite the presence of downlighting control elements.
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 solution enables more efficient and flexible light distribution, supporting both new and existing lighting devices, enhancing maintenance ease and compliance with industry standards, while providing effective uplighting in diverse environments.
Implementation Method 1
a reflective component disposed at a second location within the cavity, where the second location is in a second portion of the range of radiation paths, where the light in the second portion of the range of radiation paths reflects off of the reflective component
Data Source
AI summary
A lighting device (100) can include multiple light sources (170) that emit light along a range of radiation paths (195). The lighting device (100) can also include a reflective component (130-1) disposed proximate to at least a portion of a first side interior surface in a first portion (195-2) of the range of radiation paths (195), where the light in the first portion (195-2) of the range of radiation paths (195) reflects off of the reflective component (130-1). The lighting device (100) can further include a housing (105) having an optical feature (120) adjacent to the reflective component (130-1), where the light in the first portion (195-2) of the range of radiation paths (195), after reflecting off of the reflective component (130-1), passes through the optical feature (120) into a first part (140-2) of an ambient environment (140). The reflective component (1301) can be adjacent to an opening through which a second portion (195-1) of the range of radiation paths (195) passes into a second part (140-1) of the ambient environment (140).