| 摘要 |
<p>PURPOSE:To improve a light converging property in a sub-scan direction by raising reliability of a sealing structure of an EL end face light emitting element by a method wherein an electroluminescence end face light emitting element is covered with a projective substrate, and a light emitting side end part is projected by filling a space between the protective sub-strate and a substrate with light emitting resin. CONSTITUTION:An EL end face light emitting element 3 is so constructed that an insulating layer and a light emitting layer 3c are pinched between an upper electrode 3b and a lower electrode 3a. After forming an EL end face light emitting element array wherein a plurality of the EL end face light emitting elements are arranged, a driving IC 5 is mounted. As a protective substrate 8 of a sealing structure, the protective substrate 8 is bonded to a substrate 1 via light transmitting resin 9 consisting of silicone resin. Then, a light emitting side end part 10 of the sealing structure is made to have a light converging property in a subscan direction by forming it into a projected shape by using the light transmitting resin 9. Light radiated from the light emitting end face 4 is converged at a projected part of the sealing structure side part via a path inside the light emitting resin 9, and radiated outward as the light 11.</p> |
