Patent ID: 11971667
Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A light guide device comprising:
a housing main body;
a pair of side plates provided at both longitudinal ends of the housing main body;
a side member attached to an outer surface of a side plate on one longitudinal side among the pair of side plates;
a light guide body supported at both longitudinal ends by the pair of side plates and including a light incident surface to which light enters;
a projection provided on one longitudinal side of the light guide body and extending in a direction orthogonal to a longitudinal direction of the light guide body;
a holding hole provided in the side plate on one longitudinal side, wherein one of the longitudinal ends of the light guide body is inserted in the holding hole and the projection abuts on a peripheral edge of the holding hole;
a light source substrate held between the side member and the side plate on one longitudinal side and including a light element that emits the light toward the light incident surface; and
a positioning portion configured to position the light element to a reference position with respect to the light incident surface, wherein
the positioning portion includes:
an abutting member formed to stand on the outer surface of the side plate on one longitudinal side and including a tip end portion inserted in an engaging hole formed in the light source substrate;
a rib provided on an outer peripheral surface of the abutting member and extending in a standing direction of the abutting member; and
an elastic member held by the side member and configured to elastically press the light source substrate toward the light guide body to have the rib abut on a peripheral edge of the engaging hole so as to position the light element to the reference position.