Abstract
Bang & Olufsen has been working with a
method for manufacturing ultra-thin structures in Aluminium
that can be penetrated by light. This has resulted
in a patent describing how to obtain this effect by etching
of local areas in a solid material. The idea behind an invisible
display in Aluminum concerns the processing of a
metal workpiece in such a way that micro-cavities are
formed from the backside of the workpiece. The micro
cavities must not penetrate the metal front side, but an
ultra-thin layer of metal is left. It is possible to shine light
through this layer. By ordering micro cavities in a matrix,
different symbols can be obtained by shining light
from the backside of the workpiece. When there is no
light from the backside, the front surface seems totally
untouched. Three different manufacturing processed
were selected to achieve the desired functionality, laser
micromachining with ultra-short pulses, selective etching
+ anodizing, and electrochemical machining.
| Original language | English |
|---|---|
| Title of host publication | Proc. of The 3rd International Symposium on Nanomanufacturing |
| Publication date | 2005 |
| Publication status | Published - 2005 |
| Event | 3rd International Symposium on Nanomanufacturing - The University of Cyprus, Nicosia, Cyprus Duration: 3 Nov 2005 → 5 Nov 2005 Conference number: 3 |
Conference
| Conference | 3rd International Symposium on Nanomanufacturing |
|---|---|
| Number | 3 |
| Location | The University of Cyprus |
| Country/Territory | Cyprus |
| City | Nicosia |
| Period | 03/11/2005 → 05/11/2005 |