Image sensor unit and method for manufacturing image sensor unit

摘要

Light guides emit light from the side surface thereof toward the subject to be read, the light emitted to one end surface of each of the light guides. A frame is frame shaped, the frame houses the light guides and a lens, the frame including light guide holders that support a first to-be-supported section on the side surface of the light guides. A cover covers at least a part of one opening of the frame, and does not restrict light from passing through between the light guides and the subject to be read, the cover including light guide holders that support a second to-be-supported section opposite of the first to-be-supported section on the side surface of the light guides. The light guides are fixed inside the frame by the flange portion including the light guide holders provided by the frame and the light guide holders provided by the cover.

主权项

1. An image sensor unit, comprising:
a columnar light guide configured to emit a light, emitted to an end surface of the light guide, from a side surface thereof toward a subject to be read; a light source positioned facing the end surface of the light guide, and configured to emit light toward the end surface of the light guide; a lens configured to converge the light emitted from the side surface of the light guide and reflected by the subject to be read in a width direction of the light guide; a frame having frame-shape and configured to house the light guide and the lens, the frame including a first support configured to support a first to-be-supported section on the side surface of the light guide, wherein the first to-be-supported section is provided on both end portions in the lengthwise direction of the light guide; a cover configured to cover at least a part of one opening of the frame and not to restrict light from passing through from the light guide to the subject to be read, the cover including a second support configured to support a second to-be-supported section on the side surface of the light guide, wherein the second to-be-supported section is opposite to the first to-be-supported section and is provided on both end portions in the lengthwise direction of the light guide; a line sensor configured to receive the light converged in a width direction of the light guide by the lens; and a sensor board onto which the line sensor is mounted along a lengthwise direction of the light guide, configured to cover the other opening of the frame, wherein the light guide is fixed inside the frame by a flange portion composed of the first support of the frame and the second support of the cover.