OPTICAL INFORMATION RECORDING MEDIUM AND REPRODUCTION METHOD

• Main Authors: NAKA SHINYUKI, YAMAMOTO MAKI, KONISHI MASATO, TAJIMA HIDEHARU, YAMADA HIROHISA
• Format: Patent
• Language: English; Japanese
• Published: 29.08.2019
• Subjects: INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; PHYSICS

To improve reproduction quality of information.SOLUTION: In a case where a reflectance calculated from a reflected light amount obtained from a longest pit (P1max) or a longest space (S1max) in a first pit row is defined as a first reflectance and a reflectance calculated from a reflected light amount obtained from a longest pit (P2max) or a longest space (S2max) in a second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance.SELECTED DRAWING: Figure 6 【課題】情報の再生品質を向上させる。【解決手段】第１ピット列の最長ピット（Ｐ１max）、または、最長スペース（Ｓ１max）から得られる反射光量から算出される反射率を第１反射率、第２ピット列の最長ピット（Ｐ２max）、または、最長スペース（Ｓ２max）から得られる反射光量から算出される反射率を第２反射率とした場合、第１ピット列は、第１反射率が第２反射率と略同一となるように形成されている。【選択図】図６