| 摘要 |
PROBLEM TO BE SOLVED: To always perform the reading of a bar code using a bar code reader in a hand-held state with an optimal optical scanning pattern. SOLUTION: This bar code reader is provided with an optical device 8 in which the light emission timing of a laser diode 12 which emits a laser beam for reading a bar code is controlled by an electric circuit 10 so that an optical scanning pattern of the laser beam can be switched to either a single scanning pattern or a multi-scanning pattern. A bar code for setting an optical scanning pattern is read through the optical device 8 so that a user can set and change the optical scanning pattern at the time of hand-held use as necessary. Thus, the user can allow the bar code reader to read the bar code with an optimal optical scanning pattern corresponding to the type of the bar code to be read at the time of hand-held use, and operability at the time of hand-held use can be improved. |
