Optical scanning apparatus and method for adjusting the same

Details Optical scanning apparatus and method for adjusting the same Optical scanning apparatus and method for adjusting the same

2011-03-29

2011-03-29

Cherry, Euncha P (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

Reexamination Certificate

active

07916375

ABSTRACT:
An optical scanning apparatus includes a light source having a light-emitting point; a light-beam converting unit configured to convert a state of a light beam emitted from the light-emitting point of the light source into another state; a deflecting unit configured to deflect and scan the light beam emitted from the light-beam converting unit, the deflecting unit including a resonant deflecting element having a single deflecting surface that reciprocates around an axis; and an imaging optical unit configured to cause the light beam deflected and scanned by the deflecting surface of the deflecting unit to form an image on a surface to be scanned. The distance between the light-emitting point of the light source and the light-beam converting unit is adjusted based on information obtained by a detector that detects the light beam emitted from the light source and deflected by the deflecting surface of the deflecting unit.

REFERENCES:
patent: 7005631 (2006-02-01), Kurosawa
patent: 2-087112 (1990-03-01), None
patent: 7-023908 (1995-01-01), None
patent: 2002-182147 (2002-06-01), None
patent: 2007-140399 (2007-06-01), None

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