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Reflective lens-free DPM imaging system

An imaging system, lensless technology, applied in electromagnetic radiation induction, instruments, inductive record carriers, etc., can solve problems such as the inability to apply DPM imaging recognition system, and achieve the effect of small size, reduced cost, and high resolution

Active Publication Date: 2020-04-10
SUNLUX IOT TECH GUANGDONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the lensless imaging is only suitable for the imaging of transparent objects, making it impossible to apply to the DPM imaging recognition system

Method used

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  • Reflective lens-free DPM imaging system
  • Reflective lens-free DPM imaging system
  • Reflective lens-free DPM imaging system

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0030] see figure 1 and figure 2 , an embodiment of the present invention provides a reflective lensless DPM imaging system, comprising a printed circuit board (2), a first LED lamp (4), a second LED lamp (5), a third LED lamp (14), The 4th LED light (15), tested sample (10) and computer (13);

[0031] The printed circuit board (2) is respectively connected with the first LED lamp (4), the second LED lamp (5), the third LED lamp (14), the fourth LED lamp (15) c...

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PUM

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Abstract

The embodiment of the invention provides a reflective lens-free DPM imaging system. Light emitting of four LED lamps is controlled through a control instruction sent by the computer. The emitted lightis reflected by the surface of a tested sample and then is projected to an image sensor, a two-dimensional code image is generated, the two-dimensional code image is then converted into an electric signal through the image sensor, so that a printed circuit board transmits the corresponding image data to the computer according to the electric signal, finally, the computer can perform reconstruction processing on the image data, and a high-resolution DPM code is generated. By adopting the embodiment provided by the invention, the DPM code with higher resolution can be obtained, the reading problem of the DPM code on an ultra-small part is solved, a lens is not needed, the size of an imaging system can be made smaller and more portable, and thus the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of DPM code imaging, in particular to a reflective lensless DPM imaging system. Background technique [0002] DPM (Direct Part Mark) code is a special marking production technology, which does not need marking carriers such as paper and labels to mark directly on the surface of parts. Generally, the surface area of ​​a part is small, so the DPM code mostly adopts a two-dimensional code with large capacity and high density, and the barcode is often printed directly on the part by dot engraving, etching or code spraying. With the miniaturization of parts, the existing DPM imaging system has become increasingly unable to meet the high-resolution requirements. However, the current DPM imaging system relies on the lens imaging system. The imaging system images the barcode information of the DPM and the image sensing components through the lens. The imaging quality of this optical imaging system has higher requir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K7/10
CPCG06K7/10732G06K7/10792
Inventor 余健辉梁富念陈哲张军吴朋军李志斌
Owner SUNLUX IOT TECH GUANGDONG
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