ILLUMINATION DEVICE, IMAGE READING APPARATUS, AND IMAGE FORMING APPARATUS

摘要

In an illumination device that radiates light to an object to be irradiated placed on a predetermined placement surface, a first light guide body has a first incident surface located at an end thereof in a first direction, which receives light along the first direction, and a first exit surface extending along the first direction, which emits the light in a second direction crossing the first direction, thereby radiating light to the object to be irradiated, from the second direction, and a second light guide body has a second incident surface located at an end thereof in the first direction, which receives light along the first direction, and a second exit surface extending along the first direction, which emits the light in a third direction crossing the first direction and the second direction, thereby radiating light to the object to be irradiated, from the third direction.

主权项

1. An illumination device that radiates light to an object to be irradiated placed on a predetermined placement surface, the illumination device comprising:
a first light guide body having a bar-like shape elongated in a first direction, and having a first incident surface which is located at an end thereof in the first direction and into which light enters along the first direction, and a first exit surface which extends along the first direction and which emits the light in a second direction crossing the first direction, the first light guide body thereby radiating light to the object to be irradiated, from the second direction; a second light guide body located via a space from the first light guide body and having a bar-like shape elongated in the first direction, the second light guide body having a second incident surface which is located at an end thereof in the first direction and into which light enters along the first direction, and a second exit surface which extends along the first direction and which emits the light in a third direction crossing the first direction and the second direction, the second light guide body thereby radiating light to the object to be irradiated, from the third direction; a first light source located so as to oppose to the first incident surface of the first light guide body, and configured to emit illumination light to enter into the first incident surface; and a second light source located so as to oppose to the second incident surface of the second light guide body, and configured to emit illumination light to enter into the second incident surface.