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Optical engine for barcode recognition device

A technology of barcode recognition and optical engine, applied in the field of optical engine for barcode recognition equipment, can solve the problem of limited success rate of reading by the reader, and achieve the effect of improving portability, small overall size and compact structure

Inactive Publication Date: 2014-02-12
SHENZHEN YUNHE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the utility model improves the success rate of reading to a certain extent by using soft supplementary light sources, the success rate of reading of the reader is limited.

Method used

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  • Optical engine for barcode recognition device
  • Optical engine for barcode recognition device
  • Optical engine for barcode recognition device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Such as figure 1 As shown, an optical engine for a barcode recognition device has a second lens hole 43 at a position corresponding to the imaging lens 140 on the housing 40, and the second lens hole 43 is far away from the lens module base. One side of 11 is equipped with retaining ring 44.

[0024] Such as figure 1 , 2 As shown, an optical engine for barcode recognition equipment includes a lens module 10, a supplementary light module 20 and a sensor circuit module 30 respectively arranged on both sides of the lens module 10, and the supplementary light module 20 The position corresponding to the light source 23 is installed with a first positive lens 41, and the first positive lens 41 and the corresponding light source 23 are in four groups. The first positive lenses 41 are respectively arranged symmetrically around the second lens holes 43 , and the light sources 23 are respectively symmetrically arranged around the first lens holes 22 . With the structural arra...

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PUM

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Abstract

The invention discloses an optical engine for a barcode recognition device. The optical engine comprises a lens module, a light supplementing module and a sensor circuit module, wherein the light supplementing module and the sensor circuit module are arranged on the two sides of the lens module respectively. First positive lens bodies are installed at the positions corresponding to light sources in the light supplementing module, and the light sources adopted to the light supplementing module are one kind or the combination of more than one kind of white light sources, red light sources and near-infrared light sources. The optical engine for the barcode recognition device further comprises an outer cover which covers the light supplementing module and is connected with a lens module base, and the first positive lens bodies are installed at the positions, corresponding to the light sources, of the outer cover. The lens module comprises the lens module base, a lens base and an imaging lens, wherein the lens base is arranged on the lens module base, the imaging lens is installed on the lens base, the number of optical lens bodies installed inside the imaging lens is five, and the optical lens bodies are sequentially the second positive lens body, the first negative lens body, the third positive lens body, the fourth positive lens body and the second negative lens body from the position far away from the front end of the lens of the lens module base to the position close to the rear end of the lens of the lens module base. According to the optical engine for the barcode recognition device, the recognition success rate of the barcode recognition device is improved.

Description

technical field [0001] The invention relates to an optical engine, in particular to an optical engine for barcode recognition equipment. Background technique [0002] In daily life and industrial applications, the development of barcode technology is very rapid. From the early one-dimensional code to the current two-dimensional code, the development of barcode technology puts forward higher requirements for the corresponding barcode recognition technology. As an important part of the identification device, the optical engine's imaging effect has an important impact on the recognition success rate of the identification device. The structure of the imaging lens in the optical engine directly affects the imaging effect of the optical engine, and most of the current imaging lenses adopt a multi-lens structure. This is because the image formed by the optical system in actual work is different from the result obtained by paraxial optics, and there is a certain deviation. This dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K7/10
Inventor 丁晓云肖业卫
Owner SHENZHEN YUNHE TECH CO LTD
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