TY - JOUR
T1 - Establishment of integrated information displays in aluminium surfaces using nanomanufacturing
AU - Prichystal, Jan
AU - Hansen, Hans Nørgaard
AU - Bladt, Henrik H.
AU - Møller, Per
PY - 2006
Y1 - 2006
N2 - Bang & Olufsen has been working with a method for manufacturing ultra-thin structures in aluminium that can be penetrated by light. This work has resulted in a patent describing how to obtain this effect by material removal in local areas in a solid material. The idea behind an invisible display in aluminium concerns the processing of a metal workpiece in such a way that microcavities are formed from the backside of the workpiece. The microcavities 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 microcavities 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 processes were investigated to achieve the desired functionality: laser micromachining with ultra-short pulses, selective etching combined with anodizing, and electrochemical machining.
AB - Bang & Olufsen has been working with a method for manufacturing ultra-thin structures in aluminium that can be penetrated by light. This work has resulted in a patent describing how to obtain this effect by material removal in local areas in a solid material. The idea behind an invisible display in aluminium concerns the processing of a metal workpiece in such a way that microcavities are formed from the backside of the workpiece. The microcavities 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 microcavities 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 processes were investigated to achieve the desired functionality: laser micromachining with ultra-short pulses, selective etching combined with anodizing, and electrochemical machining.
U2 - 10.1243/17403499JNN89
DO - 10.1243/17403499JNN89
M3 - Journal article
SN - 1740-3499
VL - 220
SP - 151
EP - 156
JO - Institution of Mechanical Engineers. Proceedings. Part N: Journal of Nanoengineering and Nanosystems
JF - Institution of Mechanical Engineers. Proceedings. Part N: Journal of Nanoengineering and Nanosystems
IS - 3
ER -