OPTICAL INFORMATION READER

摘要

An information code reader is provided to read an information code, such as a QR code (registered trademark). In this reader, a marker light irradiating unit is provided in a position farther away from a reading opening than a reflective mirror is, and disposed such that an optical axis of a marker light is parallel to an optical axis that is a center of an imaging area of a light receiving sensor and the marker light is close to (or in proximity to) an upper edge (outer edge) of the reflective mirror.

主权项

1. An optical information reader comprising:
a light receiving sensor that is capable of imaging an information code; a reflective mirror that reflects reflected light from the information code entering through a reading opening towards the light receiving sensor; an imaging lens that collects the light reflected by the reflective to mirror and forms an image in the light receiving sensor; and a marker light irradiating unit that irradiates a marker light for indicating, on the information code, a center of an imaging area provided by the light receiving sensor, wherein the marker light irradiating unit is provided in a position farther away from the reading opening than the reflective mirror is, and disposed such that an optical axis of the marker light is parallel to an optical axis that is the center of the imaging area provided by the light receiving sensor and the marker light is close to an outer edge of the reflective mirror.