Optical data store and method for storage of data in an optical data store
AssigneeActilor GmbH
InventorNorbert Hampp
Life of this patent
Estimating the term…
Abstract
An optical data store is specified, having a data storage layer with a non-toxic and biodegradable polymer as light-sensitive storage medium which has photo-inducible anisotropy, for the induction of which a threshold value of the optical intensity has to be exceeded. The light-sensitive material is preferably bacteriorhodopsin which, by way of example, is immobilized in a manner embedded in a suitable matrix material or, if appropriate, in a crosslinked manner. The storage medium permits a high storage density and can be applied in a simple manner, for instance by printing onto a substrate.
Claims4
An optical data store containing a data storage layer, comprising a light-sensitive material which is an organic or biological polymer which is non-toxic and biodegradable, and is embedded in a suitable matrix material, the data storage layer having photo-inducible non-reversible anisotropy, induction of which requires a threshold value of the optical intensity to be exceeded, wherein the data storage layer is comprised of the light-sensitive material which contains a bacteriorhodopsin variant having a lengthened K lifetime in comparison with the wildtype.
An optical data store containing a data storage layer, comprising a light-sensitive material which is an organic or biological polymer which is non-toxic and biodegradable, and is embedded in a suitable matrix material, the data storage layer having photo-inducible non-reversible anisotropy, induction of which requires a threshold value of the optical intensity to be exceeded, wherein the data storage layer is comprised of the light-sensitive material which contains a bacteriorhodopsin variant having a mutation in a retinal binding site, so that a retinal is no longer bound.
A method of storing data comprising the steps of:
- providing an optical data store that is embedded in a matrix material, the optical data store containing a data storage layer comprising a light-sensitive organic or biological polymer that is non-toxic and biodegradable, wherein the data storage layer has photo-inducible non-reversible anisotropy, induction of which requires a threshold value of the optical intensity to be exceeded;
- and
- writing data to the optical data store by inducing the photo-inducible non-reversible anisotropy using a recording light having an optical intensity exceeding the threshold value
- wherein the data storage layer is comprised of the light-sensitive material containing bacteriorhodopsin and contains a bacteriorhodopsin variant having a lengthened K lifetime in comparison with the wildtype.
A method of storing data comprising the steps of:
- providing an optical data store that is embedded in a matrix material, the optical data store containing a data storage layer comprising a light-sensitive organic or biological polymer that is non-toxic and biodegradable, wherein the data storage layer has photo-inducible non-reversible anisotropy, induction of which requires a threshold value of the optical intensity to be exceeded;
- and
- writing data to the optical data store by inducing the photo-inducible non-reversible anisotropy using a recording light having an optical intensity exceeding the threshold value,
- wherein the data storage layer is comprised of the light-sensitive material containing bacteriorhodopsin and contains a bacteriorhodopsin variant having a mutation in a retinal binding site, so that a retinal is no longer bound.
Dependencies are inferred from the claim text.