| 摘要 |
PROBLEM TO BE SOLVED: To realize a superior optical characteristic and a high production rate of good products by making distance from first and second light sources to the same surface of an optical member opposing to the first and the second light sources and guiding light emitted from respective light sources to the prescribed place approximately same, making the reference surface be one, and performing alignment for the optical member with high accuracy. SOLUTION: A light source 2 and a light source 9 are provided at a position opposing to a second substrate 22e. Thereby, light emitted from the light source 2 and the light source 9 are made incident on the same surface of the second substrate 22e, converted to luminous flux indicating the prescribed characteristic by various optical elements formed in an optical member 22, and guided to a recording medium. Thus, an plural formed light sources 2, 9 are enabled to align basing on one plane 22f as a reference, more accurate alignment for various optical elements formed in the optical member 22 can be performed. Thereby, degradation of an optical characteristic caused by position deviation can be prevented. |
