Image sensor module

An image sensor module comprising:

• a light source unit that emits a linear light beam elongate in a primary scanning direction to an object to be read;
• a lens unit including an incidence surface and an output surface oriented opposite to each other and configured to receive light from the object through the incidence surface and output the light through the output surface;
• a sensor IC that receives the light outputted from the output surface;
• a housing that holds the light source unit and the lens unit and
• a support member that supports the lens unit such that the incidence surface is located more distant from the sensor IC than the output surface in a secondary scanning direction,
• wherein the support member includes a reflection surface that reflects the light from the object toward the sensor IC,
• the support member includes a recessed portion extending in the primary scanning direction and recessed away from the sensor IC, and
• the housing includes a pair of wall portions extending in the primary scanning direction and fitted in the recessed portion, and a slit formed between the pair of wall portions and facing the sensor IC.

An image sensor module comprising:

• a light source unit that emits a linear light beam elongate in a primary scanning direction to an object to be read;
• a lens unit including an incidence surface and an output surface oriented opposite to each other and configured to receive light from the object through the incidence surface and output the light through the output surface;
• a sensor IC that receives the light outputted from the output surface;
• a housing that holds the light source unit and the lens unit;
• and
• a support member that supports the lens unit such that the incidence surface is located more distant from the sensor IC than the output surface in a secondary scanning direction,
• wherein the support member includes a reflection surface that reflects the light from the object toward the sensor IC,
• the housing includes a slit facing the sensor IC, and
• the support member includes a projecting portion extending into the slit.

An image sensor module comprising:

• a light source unit that emits a linear light beam elongate in a primary scanning direction to an object to be read;
• a lens unit including an incidence surface and an output surface oriented opposite to each other and configured to receive light from the object through the incidence surface and output the light through the output surface;
• a sensor IC that receives the light outputted from the output surface;
• a housing that holds the light source unit and the lens unit;
• and
• a support member that supports the lens unit such that the incidence surface is located more distant from the sensor IC than the output surface in a secondary scanning direction,
• wherein the support member includes a reflection surface that reflects the light from the object toward the sensor IC,
• the image sensor module comprises a substrate on which the sensor IC is mounted,
• the light source unit includes:
• an LED module provided with at least one LED chip, at least one lead on which the LED chip is mounted, and a resin package covering a part of the lead and including an opening through which the LED chip is exposed;
• and a light guide elongate in the primary scanning direction as a whole and including an incidence surface facing the opening, a reflection surface that reflects light from the incidence surface, and an output surface that outputs the light from the reflection surface in a form of a linear light beam elongate in the primary scanning direction, and
• the lead includes a terminal portion sticking out through the resin package in the thickness direction, extending from a position retracted in the secondary scanning direction with respect to the opening.