Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Reexamination Certificate
2006-08-08
2006-08-08
Phan, James (Department: 2872)
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
C359S205100, C347S243000, C347S244000
Reexamination Certificate
active
07088484
ABSTRACT:
An optical scanning apparatus including a light source, a first optical mechanism, a light deflective reflection mechanism, a scanning optical mechanism, a second optical mechanism, and an aperture element. The light source emits a plurality of laser beams. The first optical mechanism includes an optical element fixed to an integrated member that fixes the light source, and converts the laser beams into converging laser beams. The light deflective reflection mechanism reflects and deflects the laser beams. The scanning optical mechanism leads the laser beams to an image recording surface. The second optical mechanism is arranged between the first optical mechanism and the light deflective reflection mechanism and has a negative power in at least a main scanning direction. The aperture element is arranged between the light source and the light deflective reflection mechanism. An optical scanning method and an image forming apparatus having the optical scanning apparatus are also described.
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Hayashi Yoshinori
Miyateke Naoki
Phan James
Ricoh Company, Inc.
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