| 摘要 |
[PROBLEMS] To provide a light emitting unit which can efficiently emit light irrespective of opening window shape of a light emitting element substrate frame material, and a lighting apparatus, an image sensor and an image scanner using such light emitting unit. [MEANS FOR SOLVING PROBLEMS] The light emitting unit is provided with a light emitting element; a light emitting element substrate whereupon the light emitting element is mounted; and the light emitting element substrate frame material having an opening window for exposing the light emitting element. The inside of the opening window is sealed with a first resin and a second resin, and a ratio of the first resin to the second resin becomes smaller as it goes to a light emitting window external from the light emitting window inside. The first resin is a transparent resin and the second resin is a colored resin having a high luminosity or a resin including a light reflecting and/or scattering material. Since a cross section boundary between the first resin and the second resin is a curved line, among the light emitted from the light emitting element, the light reflected on an opening window bottom plane can be also efficiently projected to the external. |
