JP2006228358A5 - - Google Patents

Claims (6)

  An information recording medium for recording information by irradiating energy,
  A plurality of recording layers comprising a combination of a substrate and an electrode layer, an electrochromic layer, and an electrolyte layer formed on the substrate;
  The relationship between the reflectance Rc in a colored state of one recording layer, the reflectance Re in a decolored state, and the reflectance Rm of a portion recorded on the recording layer of the recording layer is expressed by equations (1), (2), and (3). A multilayer optical disk characterized by satisfying
(Re-Rm) /(Rc-Rm)≦0.03 (1)
Re <Rc (2)
Rm <Rc (3)   By irradiating energy, information recording medium that records information,
  A plurality of recording layers comprising a combination of a substrate and an electrode layer, an electrochromic layer, and an electrolyte layer formed on the substrate;
  The relationship between the reflectance Rc in a certain colored state of the recording layer, the reflectance Re in a decolored state, and the reflectance Rm of a portion recorded on the recording layer is expressed by the following equations (1), (2), and (3). An information recording method characterized by recording information so as to satisfy the above.
(Re-Rm) /(Rc-Rm)≦0.03 (1)
Re <Rc (2)
Rm <Rc (3)   The information recording method according to claim 2, wherein the information is recorded by applying a voltage that satisfies the formulas (1), (2), and (3) and having a reflectance Rc in the colored state.   3. The information recording method according to claim 2, wherein the information is recorded by applying a voltage that satisfies the formulas (1), (2), and (3) and having a reflectance Re in the decolored state. .   3. The information according to claim 2, wherein the information is recorded with a recording power that satisfies the formulas (1), (2), and (3) and has a reflectance Rm of a portion recorded in the recording layer. Recording method.   By irradiating energy, information recording media to be recorded and reproduced,
  A plurality of recording layers comprising a substrate and a combination of an electrode layer, an electrochromic layer, and an electrolyte layer formed on the substrate;
  A recording / reproducing method of applying a voltage not less than 1.5 times and not more than 3 times the reflectance change start voltage Es when the recording layer is selected by voltage application.