Patent · US Active

Method for manufacturing a mirror comprising at least one cavity and optical mirror

US9599756B2 · kind B2 · utility

1Cited by

4References

21Claims

0Family size

Assignee

Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

Sebastian Scheiding · Jena, DE
Andreas Gebhardt · Apolda, DE
Christoph Damm · Jena, DE
Michael Scheiding · Berlin, DE
Stefan Risse · Jena, DE

Key dates

Filing date	Aug 1, 2011
Grant date	Mar 21, 2017
Priority date	—
Expiry date	Aug 25, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/25
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention relates to a method for manufacturing a light weight optical mirror or a monolithic mirror comprising at least one cooling channel, the method comprising forming a mirror body by iteratively depositing a metallic powder in layers and applying, for each of the layers, heat at least in a subarea of this layer, thereby fusing or sintering the powder in this subarea and bonding it to a previously deposited layer, the powder remaining in an unfused state in at least one region, the method further comprising forming at least one cavity within the carrier by removing the unfused powder from said region and producing a mirror surface at a closed surface of the mirror body. The invention further relates to an optical mirror and to an optical device.

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