Optimization of multi-element LED source for uniform illumination of plane surface

Area of Science:

• Lighting engineering
• Optical design
• Solid-state lighting

Background:

• Uniformity, coverage, and glare are critical in low-level lighting applications.
• Light-emitting diode (LED) luminaire performance depends on luminous flux, spatial distribution, array geometry, and distance.
• Optimizing these parameters is essential for efficient LED lighting solutions.

Purpose of the Study:

• To analyze the interdependencies of key parameters in LED luminaire design.
• To optimize a ring LED source configuration for uniform surface illumination.
• To achieve efficient lighting with minimal source flux and no glare.

Main Methods:

• Investigated the relationship between source flux, radiation pattern, array geometry, and source-to-target distance.
• Developed and optimized a ring LED source configuration.
• Evaluated illumination uniformity and glare for a plane surface target.

Main Results:

• Demonstrated the optimization of a ring LED source configuration.
• Achieved uniform illumination of a target plane surface.
• Successfully minimized source flux while eliminating glare.

Conclusions:

• The interdependencies of LED luminaire parameters can be optimized for specific applications.
• A ring LED configuration is effective for achieving uniform, glare-free illumination.
• Efficient LED lighting designs require careful consideration of source characteristics and geometry.