| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a technology for enabling favorable exposure by making small an angle of light incident on an exposure surface, and stabilizing a position of the light incident on the exposure surface. <P>SOLUTION: The exposure head includes a first light emitting element, a first lens on which light from the first light emitting element is made incident, a second lens on which light projected from the first lens is made incident, a second light emitting element, a third lens on which light from the second light emitting element is made to incident, and a fourth lens on which light projected from the third lens is made to incident. First light emitted by the first light emitting element and passing through the first lens and the second lens, and second light emitted by the second light emitting element and passing through the third lens and the fourth lens are incident on different positions in a first direction of the exposure surface which has a radius of curvature. A distance Dls1 in the first direction between the first lens and the third lens is different from a distance Dls2 in the first direction between the second lens and the fourth lens. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
