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A Barcode Reading Engine Aiming Structure

A reading engine and barcode technology, applied in the field of targeting structures, can solve problems such as complex production processes

Active Publication Date: 2019-02-01
FUJIAN NEWLAND AUTO ID TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the technical problem to be solved by the present invention is that the aiming lens design and manufacturing process of the barcode reading module in the prior art are complicated, resulting in complicated aiming structure design and manufacturing process.

Method used

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  • A Barcode Reading Engine Aiming Structure
  • A Barcode Reading Engine Aiming Structure
  • A Barcode Reading Engine Aiming Structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] A barcode reading engine targets structures such as Figure 1-3 As shown, it includes: diffractive lens 1 , diaphragm 6 , biconvex lens 2 , collimating sleeve 3 , light source groove 4 , and light source 5 .

[0028] The diffractive lens 1 has the following structure: the mirror body is transparent, and one side of the mirror body is smooth; the other side is divided into two subdivisions, A and B, by a diagonal line; wherein:

[0029] Area A is divided into six areas of equal height from top to bottom. The first area is the twill surface 12, the second area is the smooth surface 11, and the rest of the areas are arranged in this order with the twill surface 12 and the smooth surface 11.

[0030] Area B is divided into six areas of equal width from left to right. The first area is smooth surface 11, the second area is twill surface 12, and the remaining areas are arranged in this order.

[0031] Wherein, the oblique line of the twill surface 12 is parallel to the diago...

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Abstract

The invention describes a bar code identifying and reading engine aiming structure. A mirror body is divided into an A zone and a B zone, light diffraction principles are adopted, light of a light source is collimated via a collimation sleeve cylinder, the light is emitted onto a diffraction sheet after via an optical diaphragm after being converged via double convex lenses, an image is then formed after the light is diffracted through a diffraction lens, and finally a cross shape is presented. Secondary laser shaping can be realized, and a cross-shaped image can be formed, and two lines in the imaged cross shape are continuously formed instead of being interruptedly spliced. Via arrangement of the optical diaphragm, consistency between energy, shapes and positions of laser irradiated on the diffraction lens can be ensured.

Description

technical field [0001] The invention relates to an aiming structure, in particular to an aiming structure of a barcode reading engine Background technique [0002] The aiming unit is an important component of the barcode reading engine. The pattern projected on the surface of the object is used to guide the user to aim at the device so that the barcode is within the field of view of the barcode reading engine. [0003] In the prior art, common aiming patterns include a cross, a straight line, and a dot. The one-character structure is relatively simple, and only a simple convex lens needs to be designed to realize it. The one-character aiming is only suitable for reading one-dimensional barcodes with one character, and it is easy to overlap and interfere with the rectangular lighting spot. . The cross-shaped aiming pattern requires a relatively large lens. Using the principle of refraction to form an image, the slope of each area in the lens needs to be calculated separatel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/10
CPCG06K7/10831
Inventor 吴志宇钟文斌陈圣聪
Owner FUJIAN NEWLAND AUTO ID TECH CO LTD