Two-Component Lighting System Glare Reduction
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Solution Overview
Problem
Existing lighting systems lack flexibility in providing both direct and indirect lighting solutions, often resulting in glare issues and limited design options for architectural spaces, particularly with suspended grid systems.
Innovation Solution
A two-component lighting system comprising an active component recessed within a ceiling or wall and a passive component positioned adjacent to it, where the active component directs light through optics to the passive component, which redirects light upward and downward using optical elements to achieve controlled photometric distributions, reducing glare and enhancing design flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If traditional direct lighting fixtures are recessed within the ceiling to provide illumination directly to surfaces below, then lighting efficiency is improved, but glare issues worsen
Solution Approach 1:
The lighting system is divided into two separate components: an active recessed component that directs light upward, and a passive suspended component that redistributes light. This segmentation allows the light source to be hidden from direct view while maintaining lighting efficiency, thereby resolving the glare problem without sacrificing energy effectiveness.
Solution Approach 2:
The passive optical component acts as an intermediary between the active light source and the architectural space. It receives directed light from the recessed active component and redistributes it in a controlled manner, mediating the light's interaction with the space to eliminate direct glare while preserving illumination efficiency.
2Object-affected harmful factors
If suspended indirect lighting equipment emits most light upward to illuminate the ceiling, then glare is reduced, but lighting flexibility and design options worsen
Solution Approach 1:
The system provides dynamic adaptability by allowing the passive optical component to be positioned at different distances from the ceiling and by offering various optical element configurations. This enables the same basic system to adapt to different ceiling heights and design requirements while maintaining glare reduction benefits.
Solution Approach 2:
The two-component system serves multiple functions: it provides indirect lighting to reduce glare, allows for direct lighting configurations, accommodates different ceiling types (suspended grid, recessed, surface-mounted), and offers various photometric distributions. This multi-functionality resolves the limitation of design flexibility while maintaining glare reduction.
3Object-affected harmful factors
If indirect lighting systems are used to reduce glare, then visual comfort is improved, but installation complexity in suspended grid systems worsens
Solution Approach 1:
By separating the active light source from the passive optical component, the system simplifies installation in suspended grid systems. The passive component can be easily suspended from the grid at appropriate distances, while the active component is independently installed in the ceiling, reducing overall installation complexity while maintaining visual comfort benefits.
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 system provides a versatile lighting solution that minimizes glare while offering both direct and indirect lighting options, allowing for improved architectural integration and aesthetic design flexibility, particularly suitable for spaces with lower ceiling heights.
Implementation Method 1
an optical element that can redirect light in a highly controlled manner by directing light upward and/or downward
Data Source
AI summary
A two-component light fixture that includes a passive component and an active component is disclosed. In some embodiments, the active component is recessed within a ceiling or wall and the passive component is positioned below the active component. The active component emits light towards the passive component, which includes an optical element that can redirect the light by scattering, reflection, refraction, diffusion, total internal reflection and/or dispersion.