Information reading device

An information reading device that optically reads information recorded on an information recording medium, the information reading device comprising:

• a transparent placement member on which the information recording medium is placed;
• a first illumination light structured to irradiate a light onto a lower surface of the information recording medium placed on the placement member;
• a second illumination light structured to irradiate a light onto an upper surface of the information recording medium placed on the placement member;
• a first optical system structured to read information recorded on the lower surface of the information recording medium placed on the placement member;
• a second optical system structured to read information recorded on the upper surface of the information recording medium placed on the placement member;
• and
• a cover member having an upper surface portion disposed above the information recording medium placed on the placement member, side surface portions that are connected to both left and right end sides of the upper surface portion, and a far surface portion that is connected to a far end side of the upper surface portion,
• when an insertion direction side of the information recording medium into the information reading device is a far side, a removal direction side of the information recording medium from the information reading device is a front side, an insertion-removal direction of the information recording medium with respect to the information reading device is a front-rear direction, and a direction orthogonal to an up-down direction and the front-rear direction is a left-right direction,
• wherein the second optical system comprises a reflection mirror that is disposed above the upper surface portion and to which light reflected by the upper surface of the information recording medium is incident,
• lower ends of the side surface portions and a lower end of the far surface portion are in contact with the upper surface of the placement member,
• a box shaped medium disposition part that is open on the front side, and within which at least a portion of the information recording medium is disposed, is formed by the placement member and the cover member,
• the upper surface portion and the side surface portions are transparent,
• the second illumination light is disposed on both outer sides of the medium disposition part in the left-right direction, and
• light emitted from the second illumination light and transmitted through the side surface portions is irradiated onto the upper surface of the information recording medium placed on the placement member.