| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an inexpensive optical printer head capable of adjusting a light-emitting intensity in a comparatively simple structure. SOLUTION: There is disclosed the optical printer head wherein multiple light emitting elements 5 are provided on a circuit board 1 and a rod lens array 7 is provided to a portion above the light emitting elements 5. The light emitting element has two or more light emission peaks having different intensities in a light emission wave length distribution. An optical filter 8 for selectively passing a light having a wavelength band corresponding to at least one light emission peak therethrough is provided to a portion between the light emitting element 5 and the rod lens array 7 or on the rod lens array 7.</p> |
