| 主权项 |
1. An exposure device comprising:
a mirror which reflects light, emitted from a light source in a housing, toward an object to be exposed; elastic members which are arranged at both ends in a longitudinal direction of the mirror, are abutted against a reflection surface of the mirror or a surface facing the reflection surface, and press a surface of the mirror; a first eccentric cam which is located opposite to the elastic member across the mirror so as to be rotatable around a first rotary shaft, has an eccentric shape including a first outer peripheral portion, which is abutted against a first mirror support point, located near the center on one end side in the longitudinal direction of the mirror, to support the first mirror support point, and has the eccentric shape in which a distance between the first rotary shaft and the first mirror support point varies corresponding to rotation around the first rotary shaft; and a second eccentric cam which is located opposite to the elastic member across the mirror so as to be rotatable around a second rotary shaft, has an eccentric shape including a second outer peripheral portion, which is abutted against a second mirror support point of two mirror support points located on the other end side in the longitudinal direction of the mirror to support the second mirror support point, and has the eccentric shape in which a distance between the second rotary shaft and the second mirror support point varies corresponding to rotation around the second rotary shaft. |
