Evaluation of aluminum molds using the null screens test

Agustin Santiago Alvarado; Fermín Salomón Granados Agustín; Maria Elizabeth Percino Zacarias; Oliver Huerta Carranza; Víctor Iván Moreno Oliva

doi:10.1117/12.2672430

10 August 2023 Evaluation of aluminum molds using the null screens test

Agustin Santiago Alvarado, Fermín Salomón Granados Agustín , Maria Elizabeth Percino Zacarias, Oliver Huerta Carranza, Víctor Iván Moreno Oliva

Author Affiliations +

Proceedings Volume 12619, Modeling Aspects in Optical Metrology IX; 126190D (2023) https://doi.org/10.1117/12.2672430
Event: SPIE Optical Metrology, 2023, Munich, Germany

Abstract

Elastic lenses have been used in various optical systems, such as cameras, microscopes and vision systems, to name a few. A recently reported technique consists of making the lens's optical design, subsequently manufacturing an aluminum mold with the optical parameters of the design obtained, and finally injecting the polymer mixture into it to generate the lens. Where the lens surfaces take the shape of the mold surfaces, it is necessary to verify the finish of the mold surfaces so that the manufactured lenses meet the design requirements. In this work, the null screen technique is presented to evaluate the finish of these surfaces. An analysis of the results obtained and their conclusions is offered.

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Citation Download Citation

Agustin Santiago Alvarado, Fermín Salomón Granados Agustín , Maria Elizabeth Percino Zacarias, Oliver Huerta Carranza, and Víctor Iván Moreno Oliva "Evaluation of aluminum molds using the null screens test", Proc. SPIE 12619, Modeling Aspects in Optical Metrology IX, 126190D (10 August 2023); https://doi.org/10.1117/12.2672430

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