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Impresión 3D volumétrica subsegundo mediante síntesis de campos de luz holográficos

Xukang Wang^1,2, Yuanzhu Ma^1,2, Yihan Niu^2,3

¹Department of Automation, Tsinghua University, Beijing, China.

|February 11, 2026

Resumen

La síntesis digital incoherente de campos de luz holográficos (DISH) permite la impresión 3D de alta resolución. Este nuevo método supera las compensaciones de resolución-profundidad para la producción rápida y flexible de microestructuras complejas.

Área de la Ciencia:

Fabricación Aditiva; Ingeniería Óptica; Ciencia de Materiales

Sus antecedentes:

La fabricación aditiva volumétrica ofrece producción flexible de estructuras complejas.
Los métodos actuales enfrentan una compensación entre la resolución y la velocidad de construcción, lo que limita la impresión 3D de alta resolución.
Existe la necesidad de métodos eficientes para producir objetos 3D de alta resolución a escala milimétrica.

Objetivo del estudio:

Introducir un método novedoso, la síntesis digital incoherente de campos de luz holográficos (DISH), para la generación de distribución de luz 3D de alta resolución.
Superar las limitaciones de resolución-profundidad en las técnicas actuales de fabricación aditiva volumétrica.
Demostrar la impresión 3D rápida in situ de objetos a escala milimétrica con alta resolución.

Principales métodos:

Se desarrolló DISH utilizando proyecciones continuas de múltiples ángulos con un periscopio de alta velocidad giratorio.
Se empleó optimización iterativa de hologramas para diferentes ángulos de proyección.
Se utilizaron materiales de acrilato en un rango de viscosidades para demostrar la compatibilidad de materiales.

Principales resultados:

Se logró una resolución de impresión constante de 19 μm en un rango de 1 cm, superando la profundidad de campo del objetivo.
Se permitió la impresión 3D in situ de alta resolución de objetos a escala milimétrica en tan solo 0,6 segundos.
Se demostró la compatibilidad general de materiales con diversas viscosidades de acrilato.

Conclusiones:

DISH genera eficazmente distribuciones de luz 3D de alta resolución, superando las limitaciones de fabricación previas.
El método permite la impresión 3D rápida, flexible y de alta resolución de estructuras complejas.
La integración con canales de fluidos permitió la producción en masa, destacando el potencial de aplicación generalizada en ingeniería, fotónica y biología.

Palabras clave:

fabricación aditiva ingeniería óptica ciencia de materiales impresión 3D microfabricación fotónica

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