Apparatus for the reversible, optical storage of data
    4.
    发明授权
    Apparatus for the reversible, optical storage of data 失效
    用于数据可逆,光存储的装置

    公开(公告)号:US4896292A

    公开(公告)日:1990-01-23

    申请号:US262031

    申请日:1988-10-26

    摘要: The invention relates to an apparatus for reversible optical data storage using polymeric liquid crystals with mesogenic side groups as a storage medium, arranged to store information by means of selective variation of the order of the polymeric liquid crystals be means of a heat source. The macroscopically oriented film made from the liquid crystal polymer is held in the solid form retaining condition of the liquid crystal polymer in the temperature range below the glass temperature T.sub.g >T.sub.a (room remperature) for the purpose of storing the information. The polymer is then selectively and locally heated by means of the heat source into the isotropic liquid condition and the local information is fixed in the glass condition of the polymer after the heat source is turned off.

    摘要翻译: 本发明涉及一种使用具有介晶侧基团的聚合物液晶作为存储介质的可逆光学数据存储装置,其被布置为通过选择性地改变聚合物液晶的顺序来存储信息,作为热源的手段。 为了存储信息,由液晶聚合物制成的宏观取向膜在液晶聚合物的固体形式保持条件下保持在低于玻璃温度Tg> Ta(室温)的温度范围内。 然后通过热源将聚合物选择性和局部加热到各向同性液体状态,并且在热源关闭后,聚合物的玻璃状态固定局部信息。