CN203858641U - Dual-laser-emitter bar code scanning device - Google Patents

Abstract

The utility model discloses a dual-laser-emitter bar code scanning device. The dual-laser-emitter bar code scanning device comprises a scanning body. The scanning body is internally provided with two laser emitters which are arranged side by side, a laser reflection surface, a vibrating mirror and a laser receiver. The two laser emitters emit lasers with different wave bands, the lasers are reflected to the vibrating mirror by the laser reflection surface and then are reflected to a bar code by the vibrating mirror, and the laser receiver receives the lasers reflected by the bar code at last. The lasers emitted by the two laser emitters are different in laser beam waist and wave band. The wave bands of the two laser emitters are different, so that the waist positions of emitted laser beams are different. When the two laser beams are opened simultaneously or only one of the two laser beams is opened, the identification degree of the laser beams to the bar code can be effectively enlarged, so that the bar code decoding efficiency is increased, and the decoding of relatively complex bar codes is easier. The application range of the laser scanning device is provided.

Description

Two generating laser bar code scanners

Technical field

The utility model relates to a kind of laser scanning device, particularly a kind of pair of generating laser bar code scanner.

Background technology

Existing laser bar code scanister mostly is single generating laser, the laser of its transmitting is generally a fixing wave band, and laser beam waist is also changeless, therefore when running into different bar codes, owing to being subject to the restriction of laser beam waist, while identifying for more complicated bar code, bar code reading rapidly, or directly cause decoding, this affects decoding efficiency and the use of laser scanning device.

Summary of the invention

In order to overcome above-mentioned defect, the utility model provides a kind of scope of application wider, and decoding speed is two generating laser bar code scanners faster.

The utility model for the technical scheme that solves its technical matters and adopt is: a kind of pair of generating laser bar code scanner, comprise scanning body, two generating lasers of arranging are side by side installed in described scanning body, laser reflection face, mirror and laser pickoff quiver, described two generating lasers are launched the laser of different-waveband, through laser reflection face, reflex to and quiver on mirror, quiver mirror again by laser reflection to bar code, finally by laser pickoff, receive the laser reflecting in bar code, the laser of described two generating lasers transmitting has different laser beam waist and wave band.

The beneficial effects of the utility model are: the utility model has been installed two generating lasers in a laser bar code scanning device, the wave band of these two generating lasers varies in size, therefore the laser beam waist position of transmitting is different, two laser beam are opened simultaneously or opened one of them, the identification degree of expansion of laser light bundle to bar code effectively, thereby increase the decoding efficiency of bar code, also more easily some more complicated bar codes are decoded, the scope of application of laser scanning device is provided.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation;

In figure, indicate: 1-scans body; 2-generating laser; 3-laser reflection face; The 4-mirror that quivers; 5-laser pickoff; 6-bar code.

Embodiment

In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment only, for explaining the utility model, does not form the restriction to the utility model protection domain.

Fig. 1 shows a kind of embodiment of a kind of pair of generating laser bar code scanner of the utility model, comprise scanning body 1, two generating lasers 2 of arranging are side by side installed in described scanning body 1, laser reflection face 3, mirror 4 and laser pickoff 5 quiver, described two generating lasers 2 are launched the laser of different-waveband, through laser reflection face 3, reflex to and quiver on mirror 4, quiver mirror 4 again by laser reflection to bar code 6, finally by laser pickoff 5, receive the laser reflecting in bar code 6, the laser of described two generating lasers transmitting has different laser beam waist and wave band, by open two generating lasers or change one of them generating laser simultaneously, can change the beam waist position of laser, thereby more easily identify bar code, decode rapidly, improve decoding efficiency.

Claims (1)

1. a two generating laser bar code scanner, comprise scanning body (1), it is characterized in that: two generating lasers (2) of arranging are side by side installed in described scanning body (1), laser reflection face (3), mirror (4) and laser pickoff (5) quiver, described two generating lasers (2) are launched the laser of different-waveband, through laser reflection face (3), reflex on the mirror that quivers (4), quiver mirror (4) again by laser reflection to bar code (6), finally by laser pickoff (5), receive the laser reflecting in bar code (6), the laser of described two generating lasers transmitting has different laser beam waist and wave band.