Multi-beam scanning device

Details Multi-beam scanning device Multi-beam scanning device

2006-02-28

2006-02-28

Phan, James (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

C359S206100, C359S216100, C347S232000

Reexamination Certificate

active

07006269

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 fθ optical system, a second polygonal mirror that deflects the plurality of light beams passed through the fθ 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.

REFERENCES:
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patent: 6198562 (2001-03-01), Hayashi et al.
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patent: 2003-295078 (2003-10-01), None
English Language Abstract of JP2003-295078.

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