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Aiming indication device for bar code reading and bar code reading equipment

A technology for indicating device and barcode reading, applied in instruments, inductive record carriers, electromagnetic radiation induction, etc., can solve the problems of uneven brightness of indicating light spot, reducing the effect of reading code, and light pollution of lens field of view, so as to reduce light pollution and improve The effect of the code reading effect

Pending Publication Date: 2021-02-05
HANGZHOU HIKROBOT TECH CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] However, the indication light spot produced by the traditional aiming and indicating device will have the defects of large area of ​​the indication light spot and uneven brightness of the indication light spot. Therefore, not only cannot accurately indicate the reasonable reading position of the barcode, but also cause unnecessary damage to the field of view of the lens. light pollution, thereby reducing the reading effect

Method used

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  • Aiming indication device for bar code reading and bar code reading equipment
  • Aiming indication device for bar code reading and bar code reading equipment
  • Aiming indication device for bar code reading and bar code reading equipment

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Embodiment Construction

[0095] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0096] figure 1 It is a schematic diagram of an exploded structure of an aiming and indicating device in one embodiment. Figure 2a to Figure 2d For such figure 1 Schematic diagram of the structure of the shading tube cover of the aiming designation device shown. Figure 3a to Figure 3c For such figure 1 Schematic diagram of the structure of the lens cap of the aiming designation device shown. Figure 4 For such figure 1 Schematic diagram of the partial assembly structure of the aiming designation device shown. Figure 5 For such Figure 4 A-A sectional view of the partially assembled structure shown. Image 6 For such figure 1 Schematic diagram of the assembly structure of the aiming designation device shown. Figure 7 For such Image 6 ...

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Abstract

The invention provides an aiming indication device for bar code reading and bar code reading equipment. Based on the invention, a light beam generated by electrifying the light emitting module of theaiming indication device passes through the light beam shaping cavity of the shading cylinder cover and the aperture of the lens cap for light-transmitting imaging, and an indication light spot with aspecified size and brightness uniformity greater than or equal to a preset uniformity threshold value can be formed at a divergence angle less than or equal to the preset angle threshold value; therefore, the reasonable code reading position of the bar code can be indicated accurately, and light pollution to the visual field of the lens is reduced; furthermore, the code reading effect of the barcode reading equipment can be improved.

Description

technical field [0001] The invention relates to logistics automation technology, in particular to an aiming indicator device for barcode reading and a barcode reading device using the aiming indicator device. Background technique [0002] The field of view of the lens of the barcode reading device is limited, and the resolution of the barcode reading device for the central area close to the center of the lens field of view is generally better than that for the edge area at the edge of the lens field of view. Therefore, when the barcode is placed in the central area of ​​the lens field of view of the barcode reading device, a better barcode reading effect can be obtained. [0003] Based on the above reasons, barcode reading equipment is usually equipped with an aiming indicator device in addition to a code reading camera. The aiming indicating device can generate an indicating light spot, which is used to prompt the operator to place the barcode attached on the surface of th...

Claims

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Application Information

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IPC IPC(8): G06K7/10G06K7/14
CPCG06K7/10366G06K7/1413
Inventor 杨帆刘娟
Owner HANGZHOU HIKROBOT TECH CO LTD
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