| 摘要 |
A reading device is disclosed for correctly reading signals from an object to be read, such as bar codes of direct marking formed on the surface of a body, such as a metal body, by utilizing light reflected by the body after projecting light onto the object that is to be read. The reading device has a housing which incorporates therein a light-emitting portion projecting light emitted from an internal source of light onto an object to be read, and a light-receiving portion reading the object to be read by receiving light reflected by the object to be read. A diffusion member is mounted on an end portion of the housing to diffuse illumination light from an external source of light, and to transmit illumination light therethrough at a predetermined rate, and to permit illumination light to uniformly fall on the object to be read. The present invention is further concerned with a reading method for correctly reading signals from the object to be read, by using the above reading device and by utilizing light reflected by the body to which light is projected.
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