| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical device that guides light emitted from a light source provided on a wall surface part of a housing to an optical member provided at an attachment part inside the housing, and properly prevent shift in a positional relationship, including a distance between the light source and the optical member even when the temperature of the housing or the like is changed.SOLUTION: There is provided an optical device 100 comprising a light source 101 provided on a wall surface part 111 of a housing 100, and an optical member 103 to which a ray of light from the light source 101 is guided, the optical member provided at an attachment part 113 intersecting with the wall surface part 111 inside the housing 100, and at the attachment part 113 using a resin material containing a reinforced fiber f and to which the optical member 103 is attached, the reinforced fiber f contained in the resin material is aligned parallel to the wall surface part 111 to which the light source 101 is attached.SELECTED DRAWING: Figure 5 |
