초록 ▼

An optical read is capable of reading a bar code in a mounted state when an article carrying the bar code passes and of reading bar codes set in an array format on a menu sheet in a hand-held state. The optical reader comprises a light source, a scanner that is driven by a drive and scans light eman

An optical read is capable of reading a bar code in a mounted state when an article carrying the bar code passes and of reading bar codes set in an array format on a menu sheet in a hand-held state. The optical reader comprises a light source, a scanner that is driven by a drive and scans light emanating from the light source, a plurality of reflection mirrors that reflect scanning light scanned by the scanner and create a scanning pattern composed of a plurality of scan trajectories, a read window through which scanning light reflected from the reflection mirrors is emitted, and a light receiver for receiving light reflected from a mark. The optical reader further comprises a mode changer (or control unit) for changing a plurality of operation modes among which one or ones of the plurality of scan trajectories to be validated for reading are different. The operation modes include a specific scanning ray mode in which reading the mark by tracing only a single scan trajectory constituting the scanning pattern is validated but reading the mark by tracing the multiple scan trajectories is unvalidated. For reading any of bar codes set in an array format on a menu sheet, the single scan trajectory constituting the scanning pattern will be drawn on a bar code to be read. Since reading by tracing the multiple scan trajectories is invalid, only the bar code intended to be read is read.

대표청구항 ▼

[ What is claimed is:] [1.] An optical scanning device comprising:a housing;a scanner, disposed in the housing, selectively producing a first scan pattern, and a second scan pattern different from the first scan pattern;a sensor detecting whether the housing is positioned on a surface; anda controll

[ What is claimed is:] [1.] An optical scanning device comprising:a housing;a scanner, disposed in the housing, selectively producing a first scan pattern, and a second scan pattern different from the first scan pattern;a sensor detecting whether the housing is positioned on a surface; anda controller disposed in the housing to control the scanner to produce the first scan pattern when the sensor detects that the housing is positioned on the surface and to produce the second scan pattern when the sensor detects that the housing is not positioned on the surface.