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A barcode image reading device

An image and reading technology, which is applied in the field of barcode reading, can solve problems such as the inability to read two-dimensional code images, and achieve the effects of image capture, reading and decoding, enhanced environmental brightness, and convenient material collection

Active Publication Date: 2017-11-14
NEWLAND DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a barcode image reading device with simple structure and good lighting effect, which solves the problem that the existing two-dimensional code image on the highly reflective surface cannot be read

Method used

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  • A barcode image reading device
  • A barcode image reading device
  • A barcode image reading device

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Embodiment Construction

[0043] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0044] The present invention discloses a barcode image reading device, which includes a lighting device and an integrated circuit 601; the lighting device irradiates light on a target area 801 (such as a one-dimensional or two-dimensional barcode), and the integrated circuit 601 can To collect reflected light and perform related processing, the integrated circuit 601 includes at least one two-dimensional image sensor array 501, and the two-dimensional image sensor array 501 includes a plurality of active pixels, and the active pixels include at least one shielding In the data storage area, the two-dimensional image sensor array 501 absorbs the light reflected by the target area 801, and converts the light intensity into an output voltage; m...

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Abstract

The present invention provides a barcode image reading device, which includes a lighting device and an integrated circuit; the integrated circuit and the lighting device illuminate a target area when the integrated circuit obtains reflected light, and the lighting device includes a backlight lampshade, a first light source and a second light source The backlight lampshade is a cover body surrounded by a backlight plate, the two ends of the cover body are provided with a large opening and a small opening, the small opening of the backlight lampshade is provided with an integrated circuit, the backlight plate of the backlight lampshade and the light of the integrated circuit The axis is at a certain angle, and the backlight lampshade changes the optical path of the lighting device to guide the light into the field of view of the integrated circuit; the backlight lampshade includes a front and a back, and an accommodation space is provided between the front and the back, and the accommodation A first light source is set in the space; the second light source is fixed on the edge of the backlight cover near the large opening, and the second light source is a Lambertian luminescence model. By adopting the backlight lampshade to form a surface light source, the uniformity of illumination intensity on the entire light-emitting surface reaches more than 90%.

Description

technical field [0001] The invention relates to the field of barcode reading, in particular to a barcode image reading device. Background technique [0002] As is well known, an optical code is information encoded in terms of color and optionally the number and relative size of a plurality of units. A bar-shaped linear optical code includes, for example, an alternating sequence of typical black bars and typical white spaces, black bars and Each of the blanks has a plurality of base widths. Two-dimensional codes consist of a grid of cells of constant shape and size, but of two or more different colors. [0003] Typically an optical code reader includes one or more light sources, illumination optics for illuminating an illumination pattern onto an optical code, and for detecting light diffused by the illuminated optical code and generating a signal derived from its magnitude and phase. A device for electrical signals representing the color and size of an optical code element...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/10
Inventor 连伟
Owner NEWLAND DIGITAL TECH CO LTD
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