Analysis device and analysis disc used for the same

An analysis device for irradiating with detection light an analysis disc having an analysis object therein, and for reading a state of such an analysis object, wherein

• the analysis device configured for receiving an analysis disc in which a first reading area having an analysis object therein and a second reading area not having an analysis object therein are recorded, respectively, in different diameter ranges,
• the analysis device, comprising:
• a first pickup for irradiating the first reading area of an analysis disc with detection light and detecting detection light from the first reading area, and
• a second pickup for irradiating the second reading area of an analysis disc with detection light and detecting track information from detection light of the second reading area, wherein
• means for controlling the device to keep a constant interval in a radial direction of the analysis disc between the first pickup and the second pickup, and to move the first and second pickups in the radial direction, and
• means for supplying a tracking signal to a tracking actuator of the second pickup so as to drive an optical path of the second pickup in the radial direction of an analysis disc and trace a track, and a signal identical to the tracking signal of the second pickup is applied to a tracking actuator of the first pickup for driving an optical path of the first pickup in the radial direction of an analysis disc, so that an analysis object is read.