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Updated: Feb 17, 2026

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Compact illumination optic with three freeform surfaces for improved beam control.

Simone Sorgato, Rubén Mohedano, Julio Chaves

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    This summary is machine-generated.

    A new optical design method uses edge wavefronts to precisely control light intensity patterns from large LEDs. This approach enhances tailoring capabilities for extended light sources, improving lighting performance.

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    Area of Science:

    • Optical engineering
    • Illumination optics
    • Freeform optics

    Background:

    • Large-size LEDs and multi-chip LEDs are prevalent in modern lighting.
    • A lack of general optical design methods exists for creating specific intensity patterns from these extended sources.

    Purpose of the Study:

    • To present a novel optical design strategy for extended light sources.
    • To enable precise control over light intensity patterns using freeform optics.

    Main Methods:

    • Source and target patterns are represented using "edge wavefronts".
    • A monolithic optic with up to three freeform surfaces is designed using the simultaneous multiple surface (SMS) method.
    • The method controls three freeform wavefronts, an advancement over previous designs.

    Main Results:

    • Simulations demonstrate improved intensity tailoring for extended LEDs.
    • The design strategy effectively controls light distribution.
    • The method's effectiveness is confirmed through simulations.

    Conclusions:

    • The presented edge wavefront method offers enhanced intensity tailoring for extended LED sources.
    • Controlling additional wavefronts can lead to further performance improvements in illumination systems.