Analysis device and analysis disc used for the same

摘要

It is an object of the present invention to provide an analysis device which can reproduce an image of an analysis object more accurately even when an analysis disc is an optical disc having the analysis object therein. A second pickup ( 106 b) is provided for capturing and tracing a track on an analysis disc ( 201 ), and a first pickup ( 106 a) is provided which is fixed at a constant distance (L) from the second pickup ( 106 b) on the disc. A signal identical to the tracking signal of the second pickup ( 106 b) is applied to a tracking actuator for driving the optical path of the first pickup ( 106 a) in the radial direction of the analysis disc. A part of an analysis object ( 110 ) is traced and read while the position of the second pickup ( 106 b) in the radial direction is controlled at times.