Optical disk and optical recording method

Abstract

Abstract PURPOSE:To realize a DRAW type optical disk which is applied to CD and CD-ROM by forming a specific bit sequence on specific condition on a color disk which has a film of a pigment or pigment compound on a base as a recording layer. CONSTITUTION:The optical disk is used which has the film of the pigment or pigment compound as the recording layer on the discoid base of a resin material. A semiconductor laser is used as the light source of a device because the device is reducible in size and the pigment uses a material which absorbs semiconductor laser light effectively. A groove for tracking is preferably formed on a recording layer formation surface. This optical disk is irradiated with recording light while rotated at a constant linear speed of 1.2-1.4m/s to form the bit sequence having a gap of 0.84-3.6mum in the recording layer, so that the DRAW type optical disk which is applicable to CD and CD-ROM is realized.

Inventors

• 👤 Toshiki Aoi
• 👤 利樹 青井
• 👤 Terufumi Kamijo
• 👤 上條　輝文
• 👤 Noriyoshi Nanba
• 👤 憲良 南波

Bibliographic Details