Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Reexamination Certificate
2007-10-04
2009-11-17
Cherry, Euncha P (Department: 2872)
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
Reexamination Certificate
active
07619800
ABSTRACT:
A laser scanning unit and an image forming apparatus that include a deflector to deflect incident light; and a plurality of sub-scanning optical systems using the same reflective surface of the deflector. Each of the sub-scanning optical systems includes a light source, an entrance optical unit disposed between the light source and the deflector to direct light to the deflector, and an exit optical unit to direct the deflected light to imaging surfaces. Optical paths of the sub-scanning optical systems are asymmetric with reference to the deflector.
REFERENCES:
patent: 7277212 (2007-10-01), Miyatake et al.
patent: 2006/0203264 (2006-09-01), Miyatake
Cherry Euncha P
Samsung Electronics Co,. Ltd.
Stein McEwen, LLP
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