Optical scanning apparatus
AssigneeCanon Kabushiki Kaisha
InventorHaruhiko Nakatsu
Life of this patent
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Abstract
An optical scanning apparatus includes a first optical member for receiving a plurality of light beams with an interval and for causing a first group of beams to emerge with a narrower interval, the first optical member being rotatable to adjust the interval of the beams emergent therefrom; a second optical member for receiving a second light beam and the first group of beams emergent from the first optical member with an interval and for causing a third group of beams to emerge with a narrower interval, the second optical member being rotatable to change the interval between the first group of beams and the second beam; and deflecting means for scanningly deflecting a third group of beams emergent from the second optical member.
Claims9
An optical scanning apparatus comprising:
- a first optical member for receiving a plurality of light beams with an interval and for causing a first group of beams to emerge with a narrower interval, said first optical member being rotatable to adjust the interval of the beams emergent therefrom;
- a second optical member for receiving at least one second light beam and the first group of beams emergent from said first optical member with an interval and for causing a third group of beams to emerge with a narrower interval, said second optical member being rotatable to change the interval between the first group of beams and the at least one second beam;
- a third optical member for receiving a plurality of beams with an interval and for causing a second group of beams with a narrower interval, wherein the at least one second light beam comprises the second group of beams;
- and
- deflecting means for scanningly deflecting the third group of beams emergent from said second optical member.
Dependencies are inferred from the claim text.