Differentiable freeform lens design for irradiance tailoring on tilted target plane

Haisong Tang; Zexin Feng; Yi Luo

doi:10.1117/12.3033378

27 November 2024 Differentiable freeform lens design for irradiance tailoring on tilted target plane

Haisong Tang, Zexin Feng, Yi Luo

Author Affiliations +

Proceedings Volume 13237, Optical Design and Testing XIV; 132370Q (2024) https://doi.org/10.1117/12.3033378
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Abstract

Here focus on freeform lens design for irradiance tailoring on tilted target planes based on differentiable ray tracing. Leveraging the computational graph, we develop a differentiable Monte Carlo ray tracing framework featuring a 3D coordinate rotation operator. The forward calculation within this framework can simulate the irradiance distribution on a tilted target plane generated by a freeform lens, facilitating the assessment of deviations from the desired irradiance distribution. The back-propagation efficiently acquires surface parameter gradients for optimization through the Adam optimizer. The design example demonstrates that the proposed method can effectively generate a high-quality uniform irradiance distribution on a tilted receiver.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Haisong Tang, Zexin Feng, and Yi Luo "Differentiable freeform lens design for irradiance tailoring on tilted target plane", Proc. SPIE 13237, Optical Design and Testing XIV, 132370Q (27 November 2024); https://doi.org/10.1117/12.3033378

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