Secondary optical lens designed in the method of source-target mapping

Area of Science:

• Optics and Photonics
• Illumination Engineering

Background:

• Accurate far-field lighting design is crucial for various applications.
• Traditional 2D models offer limited precision compared to 3D spatial analysis.

Purpose of the Study:

• To design and investigate a secondary optical lens in three-dimensional (3D) space for improved far-field lighting.
• To evaluate the lens's light efficiency and uniformity for circular and rectangular illumination patterns.

Main Methods:

• Numerical solutions to a system of equations based on source-target mapping were used to determine the lens surface shape.
• The design process was computationally efficient, with a calculation time of only 1.6 seconds.
• Performance was analyzed in 3D space for enhanced accuracy.

Main Results:

• For circular lighting, light efficiency reached 95% with 92.2% uniformity (minimum to average illuminance ratio).
• For rectangular lighting, light efficiency achieved 83.6% with 66.7% uniformity.
• The study explored lens performance under various parameters.

Conclusions:

• The 3D optical lens design offers a significant improvement in accuracy over 2D methods for far-field lighting.
• The lens demonstrates high efficiency and uniformity, providing valuable data for production and application.
• This research offers practical references for optimizing illumination systems.