Recessed Fluorescent Fixture Diffuser Lens Glare Reduction
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Solution Overview
Problem
Traditional fluorescent lighting fixtures often emit light that is too bright and can cause glare, with distracting dynamic changes in brightness levels and patterns, making them unattractive and uncomfortable for indoor spaces, especially in business settings.
Innovation Solution
A recessed lighting fixture design that uses a straight angular reflector assembly and diffuser lenses, either frosted acrylic or perforated metal, to disperse light from fluorescent bulbs, reducing glare and visibility of the light source, while incorporating a single driver or ballast with emergency backup and adjustable lighting options.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional fluorescent lighting fixtures are used, then illumination is provided, but brightness is too high causing glare and visibility of light source
Solution Approach 1:
A diffuser lens is introduced as an intermediary component between the fluorescent light source and the illuminated space. The diffuser lens has a refractive index different from both the light source and the surrounding medium, causing light rays to refract and scatter as they pass through. This intermediary element effectively reduces glare and distributes light more evenly while maintaining illumination intensity.
Solution Approach 2:
The patent changes the optical parameters of the lighting system by introducing a diffuser lens with specific refractive index properties. This parameter change alters the light propagation characteristics, transforming direct bright light into diffused, glare-free illumination while preserving the overall illumination level.
2Illumination intensity
If traditional fluorescent lighting fixtures are used, then illumination is provided, but the source of illumination is visible making it unattractive
Solution Approach 1:
The diffuser lens acts as a visual intermediary that obscures the direct view of the fluorescent light source while still allowing light to pass through. The lens material and its optical properties ensure that the light source becomes invisible or significantly less visible, creating an aesthetically pleasing lighting fixture.
3Illumination intensity
If traditional fluorescent lighting fixtures are used, then light is emitted, but there are distracting dynamic changes in brightness level and patterns
Solution Approach 1:
The diffuser lens serves as a stabilizing intermediary that smooths out dynamic brightness variations and patterns from the fluorescent light source. By refracting and scattering light rays, the lens creates a more uniform and stable illumination pattern that eliminates distracting visual fluctuations.
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 effectively reduces brightness and glare, providing a more comfortable and aesthetically pleasing lighting experience by dispersing light evenly and allowing for adjustable illumination levels, while ensuring continued lighting in emergencies.
Implementation Method 1
The fluorescent lights are shrouded by a diffuser lens basket so that light from the fluorescent bulbs shining through the diffuser is dispersed to reduce glare and visibility of the source of light
Implementation Method 2
At least a portion of the base member can form a reflective surface which is preferably a straight non-curved reflecting surface
Data Source
AI summary
A recessed lighting fixture which utilizes a fluorescent light source. The fluorescent lights are shrouded by a diffuser lens basket so that light from the fluorescent bulbs shining through the diffuser is dispersed to reduce glare and visibility of the source of light. It is an object of the present invention to provide a fluorescent recessed lighting fixture which has the illumination from the fluorescent bulbs shining through a diffuser. It is also an object of the present invention to provide a single driver or ballast within the body of the fixture where access can only be gained from below the fixture.