Patent ID: 7916163

Claim:
An exposure head, comprising: a first light emitting element row that aligns light emitting elements; a second light emitting element row that aligns light emitting elements; an imaging optical system that images lights emitted from the first and second light emitting element rows; a first TFT circuit that is connected with the first light emitting element row via interconnection wires; a second TFT circuit that is connected with the second light emitting element row via interconnection wires; and a light shielding member that is provided with a light guide hole through which a light from the first light emitting element row and a light from the second light emitting element row pass toward the imaging optical system, wherein the first TFT circuit is arranged inside the light guide hole and the second TFT circuit is arranged inside the light guide hole, wherein the first light emitting element row and the second light emitting element row are provided between the first TFT circuit and the second TFT circuit.