Patent ID: 8305863

Claim:
An optical information recording apparatus comprising: a spatial light modulator configured to convert an irradiation beam emitted from a light source to a plurality of partial information beams that carry information by causing the irradiation beam to pass through a plurality of modulation areas; an optical mechanism configured to collect the partial information beams onto an optical information recording medium having an information recording layer and configured to apply a reference beam onto the optical information recording medium such that the reference beam and the partial information beams intersect with each other on the information recording layer; a driving module configured to drive the optical information recording medium or the optical mechanism; and a controller configured to perform angle multiplex recording of information on the information recording layer by controlling the driving module and causing the light source to emit the irradiation beam while switchingly supplying the modulation areas with the information, wherein the modulation areas comprise a first area and a second area, the second area comprising an area through which the partial information beam having a minimum angle with the reference beam has passed.