| 摘要 |
PURPOSE:To prevent deterioration of a dye for a long period of time as a result of intrusion of oxygen in air therein and to obtain an optical information recording medium having improved optical stability, long life and high reliability by sealing a non-oxidizing gas into the hermetic space between two sheets of the substrates formed with the dye films which are recording layers on the inside. CONSTITUTION:The dye films 2 consisting of (mero)cyanine dye, triallyl methane dye, etc. are formed on one sides of transparent substrates 1, 1 consisting of glass, plastic, etc. A non-oxidizing gas such as methane butane, CO2, ethylene, propylene or Ar is sealed into a hermetic space 4 in the stage of superposing such films 2, 2 to face each other and manufacturing an optical information recording disk having the space 4 via a spacer 3. The deterioration of the recording layers 2 which are the dye films as a result of photooxidation is thus prevented and the optical information recording medium having >=100 times higher durability than the conventional medium is obtd. |
