| 摘要 |
PROBLEM TO BE SOLVED: To provide a light source apparatus having less positional displacement in all directions perpendicular to the optical axis of the scanning light in the case where the light source apparatus has a structure in which the image location, on the surface to be scanned, in the optical axis direction of the scanning light is corrected using expansion and contraction of the supporting members of the light source and the collimator lens. SOLUTION: The light source apparatus includes: a light source including multiple light emitting elements; an optical element configured to transmit light emitted from the light source; a tube configured to hold the optical element; and a tube holder configured to fix the tube by holding the end of the tube on the side of the light source. A positional displacement preventing member is provided at the end of the tube on a light emission side in such a manner that it is slidable on the tube in the direction of an optical axis and prevents positional displacement of the tube in all directions perpendicular to the optical axis. COPYRIGHT: (C)2010,JPO&INPIT |
