Optical information-recording medium, method for manufacturing optical information-recording medium, method for visible information recording, use of mixture, and mixture

An optical information-recording medium comprising:

• a colored substrate;
• and
• a visible information-recording layer, which is formed on said colored substrate, and on which visible information is recorded by means of a laser beam,
• wherein said colored substrate is formed such that an added amount of a dye and/or a pigment contained in said colored substrate is adjusted on the basis of an output of said laser beam.

An optical information-recording medium comprising:

• a colored first substrate;
• a visible information-recording layer, which is formed on said first substrate, and on which visible information is recorded by means of a first laser beam;
• a second transparent substrate;
• and
• a data-recording layer, which is formed on said second substrate, and on which digital information is recorded by means of a second laser beam,
• wherein said first substrate is formed such that an added amount of a dye and/or a pigment contained in said first substrate is adjusted on the basis of an output of said first laser beam.

An optical information-recording medium comprising:

• a colored first substrate,
• a visible information-recording layer, which is formed on said first substrate, and on which visible information is recorded by means of a first laser beam;
• a second transparent substrate;
• a data-recording layer, which is formed on said second substrate, and on which data is recorded by means of a second laser beam,
• wherein a laser beam control area for controlling said first laser beam is disposed on a side of said first substrate, said laser beam control area having laser power control information for controlling laser power corresponding to color information of the colored first substrate.

A method for producing an optical information-recording medium comprising a colored first substrate, a visible information-recording layer formed on said first substrate, a second transparent substrate, and a data-recording layer formed on said second substrate, wherein visible information may be recorded on said visible information-recording layer by means of a laser beam radiated from a side of said first substrate and digital information is recorded on said data-recording layer by means of a laser beam radiated from a side of said second substrate, said method comprising:

• a substrate-forming step of forming said first substrate by adjusting an added amount of a dye and/or a pigment contained in said first substrate on the basis of an output of said laser beam;
• a first recording layer-forming step of forming said visible information-recording layer on said first substrate;
• and
• a second recording layer-forming step of forming said data-recording layer on said second substrate.