| 摘要 |
PURPOSE:To obtain an optical recording medium having a high resolution and a high contrast and capable of a multi-color recording with high speeds by irradiation of near infrared rays without the use of a direct heating means, e.g., thermal recording head, etc., by laminating a near infrared rays absorber and a heat-sensitive chromogenic substance on a base plate. CONSTITUTION:At least one set or more of a near infrared rays absorber 22 (e.g., a dye, such as diethylaminonaphthol squalilium, etc., a metal complex salt, etc.) having absorption waves in near infrared regions of 0.8-2mum, and a heat- sensitive chromogenic material 23 (e.g., a combination of a leuco dye and a developer, a combination of a diazonium salt and a coupler, etc.) are laminated on a base plate 21 (e.g., plastic sheet, glass plate, or other visible rays-transmissive materials) to obtain an optical recording medium. USE:The optical recording medium is suitable for wave-length multiplex optical disc mediums, color microfilms, etc. |
