Patent ID: 7466637
Filing Date: 2008-12-16
Classification: G11B

Abstract:
1. An optical disc recording apparatus for forming an image on an optical disc, the apparatus comprising: an optical pickup which applies a laser beam of substantially constant power to the optical disc; a rotating section which rotates the optical disc at a substantially constant speed; a storage section storing a table including radial positions of the optical pickup and a number of rotations the optical disk is to be rotated corresponding to each of the radial positions of the optical pickup, wherein the number of rotations the optical disk is to be rotated is different for each of the radial positions; a detecting section which detects a first radial position of the optical pickup with respect to the optical disc; a feeding section which, when the optical disc has been rotated the number of rotations by the rotating section corresponding to the first radial position of the optical pickup, moves the optical pickup by a movement distance in a radial direction of the optical disc; and a laser beam irradiation position controlling section which changes an irradiation position of the laser beam so that the laser beam is moved along a different laser irradiation locus on the optical disc in each rotation, whereby the density of the image is substantially uniform.