Patent ID: 9160879
Filing Date: 2015-10-13
Classification: G02B,H04N

Abstract:
1. A light guiding body comprising: a long translucent body; a light incident surface formed at an end of the body in a longitudinal direction of the body; a light emitting surface formed on one side surface of the body along the longitudinal direction of the body; and a light emitting quantity adjusting portion formed on the other side surface of the body along the longitudinal direction of the body so as to be opposite to the light emitting surface, the light guiding body being configured to: guide, in the body, light that is incident to the light incident surface; reflect the light by the light emitting quantity adjusting portion; and emit the light from the light emitting surface, wherein a width of the light emitting quantity adjusting portion in a direction perpendicular to the longitudinal direction of the body is varied according to a position in the width in the longitudinal direction of the body, a width of the light emitting surface and the width of the light emitting quantity adjusting portion are coincident with a width of the body, and the width of the light emitting quantity adjusting portion in the direction perpendicular to the longitudinal direction is gradually narrowed as the position in the width becomes closer to the end of the body in the longitudinal direction of the body.