| 摘要 |
An optical assembly (50) for use in focusing a laser beam (88) along an optical path onto a scanned surface (66). The optical assembly (50) includes a first cylinder lens (L1) having a longitudinal axis (202a) and a transverse axis (203a), located along the optical path for shaping and focusing the laser beam (88) in a first direction, wherein the transverse axis is substantially perpendicular to the optical path. A second cylinder lens (L2) is provided having a longitudinal axis (202b) and a transverse axis (203b), located along the optical path for shaping and focusing the laser beam in a second direction, wherein the transverse axis (203b) is substantially perpendicular to the optical path. The second cylinder lens (L2) longitudinal axis (202a) is not perpendicular to the optical path. |
