Suspended Lighting Fixture Ellipsoidal Reflector Ceiling Hot Spots
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Solution Overview
Problem
Existing suspended light fixtures often create hot spots on ceilings due to uneven indirect lighting and expose unsightly cabling, which detracts from the aesthetic and functionality of the illumination.
Innovation Solution
A direct and indirect suspended light fixture design featuring a recessed light engine with an ellipsoidal or ovalized reflector within the ceiling, creating a virtual lamp focal point below the ceiling line, utilizing a suspended diffuser as both a reflector and refractor to provide even illumination without visible cabling, using high-efficiency lamps and baffles to direct light output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional suspended light fixtures are used to provide indirect lighting, then ceiling illumination is achieved, but hot spots are created due to uneven lighting distribution
Solution Approach 1:
The light fixture is divided into separate functional components: a light engine compartment for direct lighting, a suspended diffuser for indirect lighting, and an ellipsoidal reflector for light distribution. This segmentation allows each component to be optimized independently, with the reflector specifically designed to distribute indirect light evenly across the ceiling, eliminating hot spots while maintaining overall illumination uniformity.
2Illumination intensity
If suspended light fixtures are installed to provide both direct and indirect lighting, then illumination coverage is improved, but cabling becomes visible and aesthetically unpleasant
Solution Approach 1:
The cabling and electrical components are extracted from the visible suspended structure and routed through the ceiling cavity. The light engine compartment is recessed within the ceiling plane, and the suspended diffuser is positioned to provide indirect lighting without exposing cabling. This extraction eliminates the visual clutter of visible cabling while maintaining the functional light coverage of both direct and indirect lighting modes.
3Shape
If the light engine is positioned close to the ceiling to minimize cabling exposure, then aesthetic appearance is improved, but indirect lighting effectiveness is reduced
Solution Approach 1:
An ellipsoidal reflector is introduced as an intermediary component between the light engine and the ceiling. The reflector is positioned to receive light from the light engine and redirect it evenly across the ceiling surface. This intermediary allows the light engine to be positioned close to the ceiling for aesthetic purposes while the reflector ensures effective indirect lighting distribution, resolving the conflict between proximity and lighting effectiveness.
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 smooth and even illumination throughout a room by hiding unsightly wiring and reducing hot spots, allowing for adjustable light configurations and maintaining a clean aesthetic by positioning the light output close to the ceiling while avoiding unsightly cabling exposure.
Implementation Method 1
a suspended diffuser acting as a reflector and refractor for providing both direct down light and indirect light illuminating the ceiling
Implementation Method 2
a suspended diffuser acting as a reflector and refractor for providing both direct down light and indirect light illuminating the ceiling
Data Source
AI summary
A direct and indirect suspended component light fixture is described herein. The light engine of the fixture is recessed within a ceiling and contains a plurality of linear fluorescent lamps substantially surrounded by an ellipsoidal reflector. The ellipsoidal reflector reflect light downward through a light output region to a suspended diffuser, the suspended diffuser acting as both a provider of direct and indirect light to generate smooth and even illumination both in the indirect and direct light components.