Patent ID: 6981643
Filing Date: 2006-01-03
Classification: G06K

Abstract:
1. An optical scanner for reading a bar code comprising: a) a laser emitter emitting scanning light beams; b) a collimator located on a projecting path of the scanning light beams and receiving the scanning light beams from the laser emitter; c) a first beam splitter located on a projecting path of the scanning light beams between the collimator and the bar code, and splitting the scanning light beams into first and second light beam portions, the first light beam portion being directed on the bar code; d) a reflector is fixed on a projecting path of the second light beam portion between the first beam splitter and the bar code, and reflecting the second light beam portion on the bar code; e) a light condensing lens receiving and focusing a reflected image produced by the first and the second light beam portions; and f) a linear light receiver receiving a focused reflected image from the light condensing lens and producing a bar code signal, further comprising a second beam splitter located on a projecting path of the second light portion between the first beam splitter and the reflector, and splitting a third light portion from the second light portion, the third light portion being directed on the bar code, the reflected image is produced by the first, the second and the third light beam portions.