Abstract:
A plurality of edges of sensor substrates are connected in a longitudinal direction in a sensor substrate unit. Farthest tips of sensor chips at the edges of the sensor substrates are positioned inside of farthest edges of the edges in the longitudinal direction. The edges of the connected sensor substrates overlap each other in a thickness direction of the sensor substrates in plan view.
Abstract:
A sensor substrate (13) includes an insertion opening (131) for inserting a light source substrate (32), and a plurality of pads (111) that are arranged along the insertion opening (131). The plurality of pads (111) and an external connection terminal are connected through a solder, and a tip of the pads (111) reaches an opening edge of the insertion opening (131).
Abstract:
An image sensor unit includes: a plurality of light sources each including an LED chip; a plurality of light guides that are arranged in parallel to face incident surfaces on one side in a longitudinal direction for each of the plurality of light sources and that guide light from the plurality of light sources to a bill; an image sensor that converts light from the bill to an electric signal; a sensor substrate for mounting the image sensor; and a circuit board that is provided with the plurality of light sources on a same mounting surface and that is arranged on the sensor substrate on one side in the longitudinal direction of the plurality of light guides, wherein the sensor substrate includes a connection hole on one side in the longitudinal direction of the sensor substrate, and the circuit board is connected to the sensor substrate by connecting a connecting portion including a plurality of external connection pads to the connection hole.