Optimizing 3D printable refractive spherical arrays for application-specific custom lenses

Akila S. Udage; Nadarajah Narendran

doi:10.1117/12.2632746

3 October 2022 Optimizing 3D printable refractive spherical arrays for application-specific custom lenses

Akila S. Udage, Nadarajah Narendran

Proceedings Volume 12216, Novel Optical Systems, Methods, and Applications XXV; 122160H (2022) https://doi.org/10.1117/12.2632746
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

In the past two decades, solid-state lighting has steadily expanded to outperform many traditional lighting technologies due to its higher energy efficiency, longer lifetime, and reduced maintenance. The effectiveness of a solid-state lighting design for a given application relies upon the optimum use of its sub-components. An LED lighting system uses an optical subsystem with secondary optics to optimize the total luminous flux on the application surface, thus increasing its application efficiency. Therefore, it is essential to use well-defined secondary optics to achieve desired illumination patterns, luminous efficiency, and lighting uniformity. Hence, this study focused on developing a 3D printable refractive lens structure that collects luminous flux from the LED light source and redirects it into the spherical lens array. Subsequently, the spherical refractive array structures are designed in the lens to redirect the accumulated luminous flux onto the target plane to increase the application efficacy and uniformity. The designed lens is later fabricated using 3D printing to perform the experimental study. The results confirm the possibility of using a refractive array lens with a backend structure to achieve higher application efficacy.

Conference Presentation

Citation Download Citation

Akila S. Udage and Nadarajah Narendran "Optimizing 3D printable refractive spherical arrays for application-specific custom lenses", Proc. SPIE 12216, Novel Optical Systems, Methods, and Applications XXV, 122160H (3 October 2022); https://doi.org/10.1117/12.2632746

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