公开(公告)号：US20040141220A1

公开(公告)日：2004-07-22

申请号：US10752690

申请日：2004-01-08

Applicant: PENTAX Corporation

Inventor： Yoshihiro Hama ,  Mikio Horie

IPC: G02B026/08

CPC classification number: G02B26/123 ,  H04N9/3129

Abstract: A multi-beam scanning device includes a multi-beam light source unit that emits a plurality of light beams having different wavelengths. The light beams are aligned in a main scanning direction. The device further includes first polygonal mirror that deflects the plurality of light beams in the main scanning direction, an fnull optical system, a second polygonal mirror that deflects the plurality of light beams passed through the fnull optical system in an auxiliary scanning direction that is perpendicular to the main scanning direction, the second polygonal mirror deflects the plurality of light beams in the auxiliary direction by one line at each main scanning of the plurality of light beams, and a projecting optical system that projects the plurality of light beams deflected by the second polygonal mirror on a screen.

Abstract translation: 多光束扫描装置包括发射具有不同波长的多个光束的多光束光源单元。 光束在主扫描方向上对准。 该装置还包括使多个光束在主扫描方向上偏转的第一多面镜，第一光学系统，第二多面镜，在垂直的辅助扫描方向偏转通过光束系统的多个光束 在主扫描方向上，第二多面镜在多个光束的每次主扫描时将辅助方向上的多个光束偏转一行，并且投影光学系统使由多个光束偏转的多个光束 多面镜在屏幕上。