Patent ID: 7956312

Claim:
An optical disc device comprising: a first laser diode configured to radiate a first laser beam with a first wavelength; a second laser diode configured to radiate a second laser beam with a second wavelength different from the first wavelength; a first objective lens configured to irradiate the first laser beam to a reflection area so as to read out image recording control data for controlling record of an image recorded in the reflection area provided on a label side of an optical disc; a second objective lens configured to irradiate the second laser beam to an image recording area so as to record an image in the image recording area provided on the label side after reading out the image recording control data; a lens holder configured such that the first objective lens and the second objective lens are fixed thereon to be arranged side by side in a radial direction of the optical disc, the lens holder configured to be displaced in a direction toward a signal side of the optical disc and in a radial direction of the optical disc; and a control unit configured to obtain a distance between the first objective lens and the second objective lens in the radial direction so as to calibrate a recording position of an image signal recorded in the image recording area, wherein the control unit obtains the distance between the first objective lens and the second objective lens in the radial direction, from a distance for which the lens holder is moved in the radial direction from a position where the first laser beam is irradiated to a reference position on the label side to a position where the second laser beam is irradiated to the reference position.