| 摘要 |
PROBLEM TO BE SOLVED: To provide a symbol reader facilitating the positioning of a reading object and reducing reading errors. SOLUTION: Illuminating light with the wave length of red light is originated to the reading object within a reading opening part 30 from a light source 50. A part of light reflected by he reading object is reflected by a half mirror 40 and is guided to an image pickup element 81 through an image pickup optical system 70, and the remaining part passes through the half mirror 40 and is guided to a visualizing window 20. External light entered from the visualizing window 20 passes through the half mirror 40, is reflected by the reading object and is guided to the visualizing window through the half mirror 40. An operator confirms whether the reading object is perfectly housed or not in the reading opening part 30 from the visualizing window 20. |
