| 摘要 |
PURPOSE:To improve the workability at the time of adhering a reflection mirror by decreasing the strains of the reflection mirror generated in the case of fixing of the reflection mirror rotating member by an adhesive, etc., with the rotary mirror device which has the specular surface for reflection of a laser beam and is used for light deflection, such as laser beam printer. CONSTITUTION:A tacky adhesive sheet 10 is provided between the flank of the rotating member 2 and the reflection mirror 5. The tacky adhesive sheet 10 is formed equal to or larger than the size of the reflection mirror and is fixed by applying an adhesive 11 to the flank of the reflection mirror 5, by which the tacky adhesive sheet 10 is acted as a buffer material to prevent the thermal internal stresses of the rotating member 2 generated by the heat at the time of the adhesion from directly affecting the reflection mirror 5. The strains of the reflection mirror 5 are, therefore, decreased and since the reflection mirror 5 can be held by the tacky adhesive sheet 10, the workability at the time of the adhesion is improved. |
