Modeling, fabrication, and metrology of 3D printed Alvarez lenses prototypes
Dulce González-Utrera, Brenda Villalobos-Mendoza, Rufino Díaz-Uribe, Daniel Aguirre-Aguirre
Abstract
In this work, we present the fabrication of two 3D printed plano-freeform prototypes, designed in such a way that, when assembled, an Alvarez lens is formed. The freeform surface of each element was mathematically described using Zernike polynomials and verified by implementing an off-axis null-screen test. Additionally, a characterization by refraction of the assembled lens was performed. Experimental images show the suitability of additive manufacturing engineering for prototyping freeform optics by providing a practical demonstration of the Alvarez lens concept.
Topics & Concepts
Zernike polynomialsLens (geology)OpticsFabricationMetrologyRapid prototyping3d printed3D printingRefractionCharacterization (materials science)MicrolensComputer scienceGradient-index opticsMaterials scienceEngineering drawingRefractive indexWavefrontEngineeringMechanical engineeringPhysicsManufacturing engineeringMedicinePathologyAlternative medicineAdvanced optical system designAdaptive optics and wavefront sensingOptical Coatings and Gratings