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公开(公告)号：EP2324477B1
公开(公告)日：2012-07-25
申请号：EP09785524.1
申请日：2009-08-26
申请人： DataLase Ltd
CPC分类号： G11B7/246
摘要： A data storage medium comprising recording information in the form of a track of data points, the colour of each data point being selected from at least three different colours, wherein the recording information is disposed on a substrate which comprises a colour forming composition, wherein said colour forming comprises a colour former which is susceptible to changing to at least three different colours when irradiated with a laser, wherein the colour former is a leuco dye, a diacetylene or a carbazole. Methods of forming the data storage medium and methods of reading the medium are also provided.
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公开(公告)号：EP2329425A1
公开(公告)日：2011-06-08
申请号：EP09785531.6
申请日：2009-08-26
申请人： DataLase Ltd
摘要： The invention relates to a method of storing information in or on an article, wherein the article comprises a colour former which is selectively irradiated to produce a multi-coloured code comprising at least three different colours. Also provided by the invention is an article comprising a multi-coloured code comprising at least three different colours, obtainable by the method of the invention.
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公开(公告)号：EP2324477A1
公开(公告)日：2011-05-25
申请号：EP09785524.1
申请日：2009-08-26
申请人： DataLase Ltd
IPC分类号： G11B7/246
CPC分类号： G11B7/246
摘要： A data storage medium comprising recording information in the form of a track of data points, the colour of each data point being selected from at least three different colours, wherein the recording information is disposed on a substrate which comprises a colour forming composition, wherein said colour forming comprises a colour former which is susceptible to changing to at least three different colours when irradiated with a laser, wherein the colour former is a leuco dye, a diacetylene or a carbazole. Methods of forming the data storage medium and methods of reading the medium are also provided.
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