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    • 9. 发明专利
    • Optical information recording medium and hologram forming method to optical information recording medium
    • 光信息记录介质和光学信息记录介质的光学信息形成方法
    • JP2008047270A
    • 2008-02-28
    • JP2006243434
    • 2006-08-11
    • Taiyo Yuden Co Ltd太陽誘電株式会社
    • KOBAYASHI TOMOJI
    • G11B7/24G11B7/0045G11B7/0065G11B20/10
    • G03H1/02G03H1/0011G03H1/0252G03H1/18G03H2001/2615G03H2250/40G03H2250/42G03H2270/22G11B7/0037G11B7/2403G11B7/24094G11B20/00876G11B23/281G11B2220/2504
    • PROBLEM TO BE SOLVED: To provide an optical information recording medium to which a hologram can be formed by irradiation with laser light and which can be used in applications in a small quantity and many brands and to provide a hologram forming method to the optical information recording medium. SOLUTION: The optical information recording medium 30 which has a recording layer 22 and a semitransmission reflection layer 23 on one surface of a first light transmissible substrate 21 and wherein information can be recorded by irradiating the recording layer with laser light from the other surface side of the first light transmissible substrate further has a second light transmissible substrate 24 stuck to the surface on the recording layer and the semitransmission reflection layer side of the first substrate, a heat generating layer 25 formed on the second light transmissible substrate, absorbing the laser light, generating heat and deformed, and a reflection layer 27 which is formed on the heat generating layer and in which a pixel Ph1 of a first hologram is formed by deformation formed associated with the deformation of the heat generating layer. A projecting and recessed part 27' is previously provided in the thickness direction of the reflection layer in at least the reflection layer and a pixel Ph2 of a second hologram is formed. Thereby, the hologram can be utilized as a means for preventing forgery/abuse even in applications in a small quantity and many brands. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种光学信息记录介质,通过照射激光可以形成全息图,并且其可以以少量和许多品牌的应用使用,并且向全息图形成方法提供全息图形成方法 光信息记录介质。 解决方案:在第一透光基板21的一个表面上具有记录层22和半透射反射层23的光学信息记录介质30,其中可以通过用另一个激光照射记录层来记录信息 第一透光性基板的表面侧还具有粘贴在第一基板的记录层和半传输反射层侧的表面上的第二透光性基板24,形成在第二透光性基板上的发热层25, 产生热和变形的激光,以及形成在发热层上的反射层27,其中第一全息图的像素Ph1由与发热层的变形相关的变形形成。 至少在反射层中,预先在反射层的厚度方向上设置突出凹部27',形成第二全息图的像素Ph2。 因此,即使在少量和许多品牌的应用中,全息图也可以用作防止伪造/滥用的手段。 版权所有(C)2008,JPO&INPIT