Wall Grazer Light Fixture Segmented Illumination Shadow Reduction
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Solution Overview
Problem
Conventional wall grazer light fixtures using incandescent or fluorescent lamps often result in top-of-the-wall shadowing and insufficient vertical illumination, while LED lighting offers energy efficiency but may not provide the desired color temperature match for uniform illumination.
Innovation Solution
A wall grazer light fixture design incorporating a reflector portion and a platform to support first light sources for wide angle illumination and second light sources for narrow angle illumination, with adjustable color temperature to match, and a circuit for powering and controlling these sources to reduce shadowing and enhance vertical illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If incandescent lamps are used to illuminate the wall, then the light fixture can provide vertical illumination, but it results in top-of-the-wall shadowing
Solution Approach 1:
The lighting system is segmented into two distinct light sources: a first light source (fluorescent lamp) positioned at the top to provide wide-angle illumination and eliminate shadows, and a second light source (LED) positioned lower to provide vertical illumination. This segmentation allows each light source to perform its specific function without causing the harmful effects of the other.
Solution Approach 2:
Different parts of the lighting system are given different qualities: the first light source uses fluorescent technology with wide beam angles for top illumination, while the second light source uses LED technology with directional characteristics for vertical illumination. Each light source is positioned and configured to provide the specific quality of light needed for its location.
2Object-affected harmful factors
If fluorescent lamps are used to provide wide angle illumination, then top-of-the-wall shadowing is reduced, but sufficient vertical illumination along the wall is not achieved
Solution Approach 1:
The lighting system divides the illumination task between two light sources: the first light source (fluorescent) handles the wide-angle top illumination to eliminate shadows, while the second light source (LED) handles the vertical illumination. This segmentation resolves the contradiction by assigning each function to the most suitable light source.
Solution Approach 2:
The system merges two different lighting technologies (fluorescent and LED) into a single integrated fixture, combining their respective advantages: the wide-angle, shadow-reducing capability of fluorescent lamps with the energy efficiency and directional control of LEDs.
3Use of energy by moving object
If LED devices are used to improve energy efficiency, then power consumption is reduced, but color temperature matching for uniform illumination becomes challenging
Solution Approach 1:
The system applies different color temperatures to different locations: the first light source (fluorescent) provides a color temperature suited for top illumination, while the second light source (LED) provides a complementary color temperature for vertical illumination. This local quality approach allows energy efficiency while achieving uniform overall color temperature through proper positioning and selection of light sources.
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 design provides enhanced illumination along a wall with reduced shadowing, effectively highlighting textures and features by combining wide and vertical lighting with matched color temperatures, improving aesthetic and functional lighting outcomes.
Implementation Method 1
a fixture body with a reflector portion and a platform to support one or more first light sources
Data Source
AI summary
Wall grazer light fixtures that are configured to illuminate portions of walls are provided. In one embodiment, a wall grazer light fixture can include one or more first light sources for providing wide angle illumination along a wall. In addition, the wall grazer light fixture can include one or more second light sources arranged in the wall grazer light fixture to provide vertical illumination along the wall. In some embodiments, the wall grazer light fixture can include a circuit configured to adjust a color temperature of the first light source(s) and/or the second light source(s) such that the color temperature of the first light source(s) matches the color temperature of the second light source(s).