| 摘要 |
PURPOSE:To prevent the crosstalk of the light source projecting plural recording tracks by time-sharingly lighting the plural light sources projecting plural recording tracks and executing the time-shared reproduction processing of the reproduction signal received by one light receiving means as well. CONSTITUTION:Plural light sources 3A-3D are lit in order time-sharingly by using a light source control means 30. In a light receiving means 21, there fore, the reproduction signal SPB obtd. by receiving the reproduction light LARO, LBRO, LCRO or LDRO obtd. from either of plural recording tracks TRA-TRD can be reproduced by subjecting this reproduction signal SPB to time shared reproduction by using time-shared reproduction means 22-25 (22, 34, 35A-35D, 36A-36D). The crosstalk of the reproduction light obtd. from the plural recording tracks TRA-TRD is thus prevented and the optical record ing information reproducing device capable of simultaneously and correctly reproducing the plural recording tracks TRA-TRD is obtd. |
