| 摘要 |
The disclosure relates to an optical reader system (40), including a partially polarizing beam splitter (45) for directing a selected polarization component of a linearly polarized beam (42) to a target (12) such as a media disk, reflectively separating the resulting reflected beam from the beam directed to the target, and selectively enhancing the relative intensity of two orthogonal polarization components reflected from the target. A polarisation separater (55) separates the linearly polarised reflected beam into said selectively enhanced polarization components and a deflector assembly determines the relative intensities of said selectively enhanced polarization components. |
