| 摘要 |
To reduce the size, the weight, and the production cost and to improve the reliability of an optical device for a code reader for reading a code (24) imprinted on the package of an article, a light emitting element (21), a prism (22) and a light receiving element (15) are all fixed to a semiconductor substrate (14), so that the assembly at the semiconductor chip level of these elements (15, 21 and 22) is possible. This device can be used for an optical apparatus for reading various codes used in POS systems, physical distribution/management systems, production control systems, and so forth.
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