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Information-recording element having a dye-containing auxiliary layer

  • US 4,230,939 A
  • Filed: 09/29/1978
  • Issued: 10/28/1980
  • Est. Priority Date: 09/29/1977
  • Status: Expired due to Term
First Claim
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1. An improved information-recording element in which information can be written and read optically, which comprises a transparent substrate, an auxiliary layer provided on the substrate, an information-recording layer which is provided on and abuts the auxiliary layer and having a reflecting power with respect to a laser light beam used for writing or reading, the improvement being characterized in that the auxiliary layer is a laser light-absorbing dye-containing layer.

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