Light source unit for optical scanning apparatus used in image forming apparatuses
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United States of America Patent
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Oct 22, 2002
Grant Date -
N/A
app pub date -
Jun 30, 2000
filing date -
Jun 30, 1999
priority date (Note) -
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Abstract
A multi-beam scanning apparatus including a light source unit having a plurality of light emitting parts configured to emit a plurality of divergent light fluxes, a deflector configured to deflect the plurality of divergent light fluxes emitted from the light source unit, and an imaging system configured to couple the plurality of divergent light fluxes from the light source unit with the deflector and to condense the deflected plurality of light fluxes into optical spots on a surface to be scanned. The light source unit is configured so the optical spots are separated from each other in a sub-scanning direction on the surface to be scanned, and optical axes of the light fluxes emitted from the plurality of light emitting parts are angled in a substantially same direction in the sub-scanning direction relative to optical axes of respective corresponding coupling lenses.
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