| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a technique of suppressing generation of ghost by restricting leakage of a light from a gap between a light shielding member and a holding member to an optical member. <P>SOLUTION: The exposure head includes a light emitting element substrate on which light emitting elements are arranged, a first light shielding member which includes a light guide hole formed therein and is arranged on the light emitting element substrate, the optical member in which a lens for the light passing the light guide hole from the light emitting element to enter is arranged, the holding member which is arranged on the light emitting element substrate and holds the optical member from a peripheral surface side of the light shielding member, and a second light shielding member which shades the gap between the light shielding member and the holding member. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
