Optical Recording Medium

• Main Authors: AKIMORI TOSHIHIRO, SAKAMOTO SUSUMU, SUWABE MASAJI
• Format: Patent
• Language: English; Korean
• Published: 15.03.2001
• Edition: 7
• Subjects: ADHESIVES; CHEMISTRY; COLOUR PRINTING; DYES; INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; LAKES; LINING MACHINES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; PAINTS; PERFORMING OPERATIONS; PHYSICS; POLISHES; PRINTING; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; STAMPS; TRANSPORTING; TYPEWRITERS

PURPOSE: To perform a stable recording even by a laser beam of a low power while maintaining a high reflectance of a recording layer by adopting a compound which shows a heating reaction as an organic coloring matter, in an optical recording medium equipped with an organic coloring matter film containing the organic coloring matter as the recording layer. CONSTITUTION: When information is recorded on an optical disk 1, a laser beam is irradiated to a recording layer 3 from a base 2 side. Then, an organic coloring matter of the recording layer 3 at the section, to which the laser beam has been irradiated, heats and decomposes. As a result, the section, wherein the organic coloring matter has been decomposed, has a different reflectance from the other section, and a pit is formed in the recording layer 3. In this case, in the recording layer 3, an organic coloring matter, of which the decomposing reaction is a heating reaction, is contained. By this constitution, even when a laser beam of a low power is used, an insufficient heating value for the recording is compensated by a heating value generated when the organic coloring matter decomposes, and a stable recording is performed. As such an organic coloring matter, a direct dye such as a cyanine coloring matter and others are adopted. 본 발명은 유기 안료를 함유하는 유기 안료 필름을 기록 층으로서 포함하는 광 기록 매체를 제공하는 것이다. 유기 안료 필름은 유기 안료로서 발열 반응을 나타내는 1종 이상의 화합물을 함유한다. 이로 인해 기록 층의 고반사율을 유지하면서 저전력 레이저 빔으로도 안정한 기록을 달성할 수 있다.