| 摘要 |
In an optical device and optical information recording apparatus of the invention, a light emission unit has an emission layer emitting a light beam along an optical axis. A light reflection unit reflects the light beam, emitted by the light emission unit, to a predetermined direction. A substrate has photodetecting elements disposed thereon, the photodetecting elements detecting a reflected light beam from a storage medium. The emission layer of the light emission unit is slanted to a central axis of the substrate, and the light emission unit and the light reflection unit are disposed on the substrate such that one of a change of a distribution of intensity of the reflected light beam from the light reflection unit and a change of a direction of polarization of the reflected light beam, caused by the slanted emission layer, is corrected.
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