| 摘要 |
PCT No. PCT/JP92/01395 Sec. 371 Date Apr. 15, 1994 Sec. 102(e) Date Apr. 15, 1994 PCT Filed Oct. 28, 1992 PCT Pub. No. WO93/09514 PCT Pub. Date May 13, 1993.An information-reading apparatus that reads optical information formed on a specular surface which provides regular reflection light components with a high luminous intensity. Illumination light beams radiated through a lens, a diffusion reflected component, which is reflected and diffused on a reflection diffuser, is directed to and specularly reflected on the specular surface so that it reaches an image sensor. When the information-reading apparatus is inclined at a specified angle, of a first and second illumination light, the first does not reach the image sensor, but the diffusion reflected light which is a part of the diffusion reflected light does, because the diffusion reflected component is specularly reflected on the specular surface, to travel along the path leading to the image sensor. Accordingly, the information-reading apparatus reads a bar code formed on the specular surface by the normal reading operation, that is, with the reading opening placed in contact with the specular surface.
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