Tailoring lighting reflectors to prescribed illuminance distributions: compact partial-involute designs
Applied Optics
|November 12, 2010
Summary
This study extends tailored edge-ray designs (TED) for lighting reflectors to tubular sources. New partial-involute reflector designs offer improved illuminance uniformity and compactness compared to previous methods.
Area of Science:
- Optical engineering
- Illuminating engineering
- Geometric optics
Background:
- Tailored edge-ray designs (TED) enable precise flux map control for lighting reflectors.
- Current TED methods are limited to flat light sources.
Purpose of the Study:
- Generalize the TED procedure to accommodate tubular light sources.
- Develop and analyze partial-involute reflectors for improved luminaire performance.
Main Methods:
- Analytical solution of governing differential equations for reflector geometry.
- Application to symmetric two-dimensional luminaires for uniform far-field illuminance.
- Comprehensive analysis of flux map and geometric properties.
Main Results:
- Successfully generalized TED for tubular sources using partial-involute reflectors.
- Achieved increased uniform core regions and more compact reflector designs.
- Demonstrated enhanced glare control compared to flat-source TED.
Conclusions:
- Partial-involute TED offers significant advantages for tubular light sources in luminaire design.
- Hybrid combinations of designs can lead to further performance enhancements.
- The generalized method provides a powerful tool for advanced optical design.
