Patent · US Active

Optical method and apparatus for fabricating a structured object

US10442133B2 · kind B2 · utility

4Cited by

7References

15Claims

0Family size

Assignee

Hochschule Fuer Angewandte Wissenschaften Aschaffenburg · DE

Inventors

Anika Trautmann · Großostheim, DE
Ralf Hellmann · Aschaffenburg, DE

Key dates

Filing date	Aug 17, 2018
Grant date	Oct 15, 2019
Priority date	—
Expiry date	Aug 17, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG02B27/40
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A method and an apparatus for fabricating a structured object wherein a photo-curing material, which is cured by being irradiated with light, within successive layers is irradiated with light providing energy, which is transformed by absorption to internal energy of the photo-curing material for curing, thereby forming the object. Within each individual layer of the successive layers coarse structures of the object and fine structures of the object are identified. A first light beam is directed, which provides a single photon energy that matches the energy gap of the photo-curing material for absorption, to first focus positions within the photo-curing material. The first focus positions being associated with the coarse structures of the object within a first individual layer of the successive layers, to cure the photo-curing material at the first focus positions thereby forming the coarse structures of the object within the first individual layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.