Two-dimensional code scanning reader

Abstract

The invention discloses a two-dimensional code scanning reader which comprises a scanning head, a scanning base and a reader body arranged in the scanning head. The scanning head is rotatably connected onto the scanning base, one end of the scanning head is a spherical surface, the other end of the scanning head is a circular plane, a scanning window and an external optical component are arranged on the plane, the external optical component surrounds the scanning window, a banded code reading indicator lamp is arranged on the waist of the scanning base, a strip buzzer is arranged at the front end of the scanning base, the reader body comprises an electronic circuit device, an internal optical component and reflectors, the electronic circuit device is arranged in a containing space of the scanning base, the internal optical component comprises diffusion mirrors and a group of light-emitting parts, the light-emitting parts are electrically connected onto the electronic circuit device, the diffusion mirrors are arranged on ray-casting paths of the light-emitting parts, and the reflectors are arranged on the ray-casting paths and correspond to casting ports. By the aid of the light-emitting parts, two-dimensional codes can be completely and multi-directionally scanned by the light-emitting parts, so that distinguishing accuracy of the two-dimensional codes is improved.

Description

technical field [0001] The invention relates to the field of scanning equipment, in particular to a two-dimensional code scanning reader. Background technique [0002] Two-dimensional code, also known as two-dimensional barcode, is a readable barcode extended on the basis of one-dimensional code. Two-dimensional code scanning gun is a device for scanning two-dimensional codes. The common ones are handheld two-dimensional code scanners and fixed two-dimensional code scanners. Fixed two-dimensional code scanners are usually desktop, placed on the workbench or fixed in the terminal device. [0003] The diffusion sheet of the existing two-dimensional code scanning reader is a lens with a flat surface. Therefore, when the light passes through the diffusion sheet and is refracted, the brightness of the light at the central position is stronger, while the brightness of the light at the sides is higher. The smaller fan-shaped light source and the uneven light source cannot complet...

AI Technical Summary

Problems solved by technology

[0003] The diffusion sheet of the existing two-dimensional code scanning reader is a lens with a flat surface. Therefore, when the light passes through the diffusion sheet and is refracted, the brightness of the light at the central position is stronger, while the brightness of the light at the sides is higher. Small fan-shaped light source, uneven light source cannot completely scan the code area on the two-dimensional code symbol, resulting in poor accuracy of distinguishing the two-dimensional code

In addition, the fixed pitch and wavy diffuser have the same spacing between the waves, so that after the light is refracted by the waveform of the diffuser, there are still some dark areas, and the improvement effect is not significant

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