Work

Computing the circle of least confusion for designing aspheric Fresnel-type reflectors

Year: 2025

Type: article

Abstract: We assume a bundle of rays propagating parallel to the optical axis incident on aspheric converging Fresnel-type reflectors (ACFR), to study the formation of caustic surfaces produced by reflection. Subsequently, we evaluate the circle of least confusion (CLC) produced by ACFR. Alternatively, varying the design parameters, it is possible to reduce the size and modify the shape of the caustic surfaces, which have wide potential applications for both imaging and non-imaging optical systems. We ideally provide a formula to evaluate the optical concentration ratio produced by ACFR. If we demand that the absorber is placed at CLC, we can optimize the design for ACFR by increasing its optical concentration ratio. Finally, an ACFR prototype is designed to minimize its CLC and consider the properties of caustic surfaces.

Source: Optics Continuum

DOI: 10.1364/optcon.566241

Authors: Martín Jiménez-Rodríguez, Maximino Avendaño-Alejo, Gabriel Castillo-Santiago, Edwin Román-Hernández, Jesús DelOlmo-Márquez, Oliver Huerta-Carranza

Institutions: Universidad del Istmo, Universidad del Istmo, Universidad Nacional Autónoma de México

Language: English

Topic: Advanced optical system design

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,372

Funder: Dirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México