Lighting gel filters as an alternative for low-cost optical system design in point-of-care applications

Alberto J. Ruiz; Mia K. Giallorenzi; Kimberley S Samkoe; Brian W. Pogue

doi:10.1117/12.2583344

5 March 2021 Lighting gel filters as an alternative for low-cost optical system design in point-of-care applications

Alberto J. Ruiz, Mia K. Giallorenzi, Kimberley S Samkoe, Brian W. Pogue

Proceedings Volume 11632, Optics and Biophotonics in Low-Resource Settings VII; 116320D (2021) https://doi.org/10.1117/12.2583344
Event: SPIE BiOS, 2021, Online Only

Abstract

Lighting gel filters have been used for over 100 years to modify the color of traditional light sources. Very few applications of gel filters have been recorded in scientific literature despite their potential in low-cost optical design . We propose that key factors that prevent wider adoption of gel filters in scientific applications are a lack of extensive optical characterization and comparison to commonly used dielectric and color glass filters. Here, we perform optical characterization of lighting gel filters and compare their transmission, auto-fluorescence, and photobleaching performance to dielectric and color glass filters. The results indicate that gel filters are a viable low-cost alternative with unique advantages that make them suitable for scientific applications including low-cost smartphone imaging systems and disposable lab-on-chip fluorescence tests.

Conference Presentation

Citation Download Citation

Alberto J. Ruiz, Mia K. Giallorenzi, Kimberley S Samkoe, and Brian W. Pogue "Lighting gel filters as an alternative for low-cost optical system design in point-of-care applications", Proc. SPIE 11632, Optics and Biophotonics in Low-Resource Settings VII, 116320D (5 March 2021); https://doi.org/10.1117/12.2583344

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