| 摘要 |
An optical deflector is disclosed that includes a rotary shaft; plural rotary polygon mirrors laminated in an axis direction of the rotary shaft, the rotary polygon mirrors having reflection surfaces and the reflection surfaces of one rotary polygon mirror and those of another rotary polygon mirror facing in different directions; and a joining section provided between the rotary polygon mirrors. In the optical deflector, the joining section is integrally formed with at least one of the rotary polygon mirrors.
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