Verfahren zur Herstellung eines löschbaren optischen Datenspeichermediums.
摘要
An erasable optical data storage medium has an integral recording layer (11) including an expansion zone (18) and a retention zone (16) having different optical and thermal-mechanical properties. A uniform integral layer of dyed polymer material (14) has the dye leached out of the surface region and a second dye diffused into the surface region to create a retention zone (16). The retention zone (16) has a higher elastic modulus and glass transition temperature than the underlying expansion zone (18) and is adapted to absorb and transmit light which is centered about a different wavelength than the expansion zone (18). The medium is adapted to be used with a non-ablative and non-vesicular method to create and erase optically detectable deformations (24) in the retention zone.
申请公布号
DE3789654(T2)
申请公布日期
1994.10.20
申请号
DE19873789654T
申请日期
1987.09.30
申请人
PHILIPS ELECTRONICS N.V., EINDHOVEN, NL
发明人
LIND, MICHAEL A., DURHAM OREGON 97224, US;SKIENS, W.EUGENE, WILSONVILLE OREGON 97070, US;FEYRER, CLYDE D., PORTLAND OREGON 97219, US;SWANSON, JOHN W., PORTLAND OREGON 97266, US