| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent a latent image from being unclear due to expansion of a light (beam) diameter emitted from a light emitting element. SOLUTION: An optical printer head comprises a head substrate 1 with a plurality of circuit wirings 4 attached on the upper surface of a transparent substrate 2 with a pair of band-like sleeper layers 3, 3 having a 50% or less-light transmission ratio attached parallel such that one end and/or the other end elongate onto the band-like sleeper layers 3, and a light emitting element array chip 5 having a plurality of light emitting elements 6 arranged linearly on the lower surface, and a plurality of terminal electrodes 7 connected electrically with each light emitting element 6, wherein the light emitting element array chip 5 is mounted on the head substrate 1 such that the light emitting elements 6 is arranged between the pair of the band-like sleeper layers 3-3 as well as the terminal electrodes 7 are connected electrically with the circuit wirings 4 on the band-like sleeper layers 3.</p> |
