OPTICAL INFORMATION RECORDING AND REPRODUCING APPARATUS

• Main Authors: YAMAZAKI KAZUYOSHI, NAGASAWA MITSURU, SHIMADA KENICHI
• Format: Patent
• Language: English; Japanese
• Published: 08.12.2016
• Subjects: INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; PHYSICS

PROBLEM TO BE SOLVED: To provide an optical information recording and reproducing apparatus capable of increasing reproducing and transfer speed by improving the optical efficiency when reproducing on an optical system.SOLUTION: An optical element (for example, optical isolator) for removing a beam of return light of a light beam is disposed so as to allow the light beam to pass therethrough when recording a piece of information on an optical information recording medium, and not to allow the light beam to pass therethrough when reproducing the information on the optical information recording medium.SELECTED DRAWING: Figure 1 【課題】光学系の再生時の光学効率を向上させて再生転送速度を高速化することが可能な光情報記録再生装置を提供する。【解決手段】光ビームの戻り光を除去する光学素子（例えば光アイソレータを指す）を、光情報記録媒体へ情報を記録するときは光ビームが通過し、光情報記録媒体の情報を再生するときは光ビームが通過しないように配置する。【選択図】 図１