US 2003/0202231 A1 · Optical scanning apparatus

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.

Claims10

Dependent claims

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 a 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 second beam;
and
deflecting means for scanningly deflecting a third group of beams emergent from said second optical member.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

10/337,376Filed 7 Jan 2003

Priority

JP 001387/2002(PAT.)8 Jan 2002

Published

30 Oct 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

H04N 1/0414
Different densities of dots per unit length: in the sub scanning direction
B41J 2/473
Using dot sequential main scanning by means of a light deflector, e.g. a rotating polygonal mirror: using multiple light beams, wavelengths or colours
G02B 26/123
Using multifaceted mirrors: multibeam scanners, e.g. using multiple light sources or beam splitters
H04N 1/0402
Scanning arrangements , i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing…:…

Optical scanning apparatus

Life of this patent

Optical scanning apparatus

Life of this patent

Abstract

Claims10