| 摘要 |
PROBLEM TO BE SOLVED: To facilitate cleaning of an objective lens for reading by providing a member opposite to the lens with an opening part in a position opposite to the lens. SOLUTION: When a tray 10 as a part of a disk moving means is in a position before its movement, and a carriage 34 is in a home position, i.e., a position of repose before playing, the tray 10 is formed with the opening part 10d in a circular shape opposite to the objective lens 33a. Similarly, when the tray 10 and the carriage 34 are in their positions of repose before playing, a circular opening part to be opposite to the objective lens 33a is also formed in an upper surface of a housing, which is not shown in the figure. Consequently, dust, etc., stuck on the surface of the objective lens 33a can easily be cleaned without removing the tray 10 and the housing. |
