| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical scanning device for arranging an optical element, which guides an optical beam to a deflector, such as rotating polygon mirror, at a low cost with high accuracy. SOLUTION: The optical scanning device is provided with: a first light source; a second light source arranged by being shifted from the first light source in a sub-scanning direction; one deflector, which deflects a first luminous flux output from the first light source and a second luminous flux output from the second light source, permits each deflected luminous flux to scan in a main scanning direction on different surfaces to be scanned; a first optical member, which is arranged in a first optical path between the first light source and the deflector, and guides the first luminous flux output from the first light source to the deflector; a second optical member, which is arranged in a second optical path between the second light source and the deflector, and guides the second luminous flux output from the second light source to the deflector; and one wall for holding both the side plane of the first optical member and the side plane of the second optical member. COPYRIGHT: (C)2007,JPO&INPIT
|
