Draw type optical recording medium

摘要

PCT No. PCT/JP87/00702 Sec. 371 Date Jun. 24, 1988 Sec. 102(e) Date Jun. 24, 1988 PCT Filed Sep. 25, 1987 PCT Pub. No. WO88/03310 PCT Pub. Date May 5, 1988.The DRAW type optical recording medium which can record optical information by forming information pits in the recording layer by irradiation of an energy beam such as laser beam, and yet can reproduce the information immediately after writing without requiring any step of developing processing after writing of information. The optical recording medium includes a recording layer (3) for forming information pits through the occurrence of physical deformation by irradiation of an energy beam and a sensitizing layer (4) for augmenting the physical deformation in the recording layer (3) laminated on a support (2). By the presence of the sensitizing layer, recording sensitivity is improved and also stability of the medium with lapse of time becomes excellent. Further, due to the presence of the sensitizing layer, the optical recording medium can be a sealed structure and therefore the optical recording medium is lightweight and flexible, and can be made in various forms such as card, sheet, a flexible sheet, and the like.