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Optical sensor and detection method thereof

An optical sensor, sensor technology, applied in the direction of material excitation analysis, etc., can solve the problems of high complexity of stay and detection, and achieve the effect of prolonging the service life, safe operation mode and compact structure

Active Publication Date: 2014-12-10
广东恒立信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The first purpose of the present invention is to provide an optical sensor to overcome the shortcomings of the existing anti-counterfeiting technology that only stays at the laboratory level, the detection complexity is high, and expensive and high-end equipment or a combination of equipment must be used to detect

Method used

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  • Optical sensor and detection method thereof
  • Optical sensor and detection method thereof
  • Optical sensor and detection method thereof

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specific Embodiment

[0042] refer to figure 1 and figure 2 , the present embodiment includes a transmitting module 1, a receiving module 2, an infrared shooting sensor module 3 and a signal transfer transmission module 4;

[0043] 1) The emission module 1 has an automatic detection control sensor 1-1 and a semiconductor laser 1-2; after the automatic detection control sensor 1-1 detects that the optical sensor is close to the substrate, the automatic detection control sensor 1-1 sends a detection control signal to the semiconductor laser At the input end of the laser 1-2, the semiconductor laser 1-2 emits a detection beam to scan the surface of the substrate after receiving the detection control signal; when the surface of the substrate contains a normal-shaped or regular anti-counterfeiting feature signal area, the detection beam The scanned place will excite a response beam;

[0044] 2) The receiving module 2 has a light guiding device, a light filtering device, a photoelectric sensor and a s...

specific Embodiment 2

[0063] The optical sensor of this embodiment is characterized in that: the control signal input terminal of the infrared shooting sensor module 3 is also connected to the control signal output terminal of the transmitting module 1, and other structures are the same as the optical sensor of the specific embodiment 1.

[0064] The detection method of the optical sensor of the present embodiment is characterized in that: in step 4), the infrared shooting sensor module 3 starts: when the automatic detection control sensor of the emission module 1 in step 2) detects the detection end face of the optical sensor When it is close to the surface of the substrate, the emission module 1 sends a shooting instruction to the infrared shooting sensor module 3, and the infrared shooting sensor module 3 receives the shooting instruction, starts shooting, and outputs the captured image information to the signal transfer transmission module 4; Infrared shooting sensor module 3 can start working a...

specific Embodiment 3

[0065] The feature of the optical sensor in this embodiment is: the control signal input terminal of the infrared shooting sensor module 3 is also connected to the control signal output terminal of the central processing unit. Other structures are the same as those of the optical sensor in Embodiment 1.

[0066] The detection method of the optical sensor of the present embodiment is characterized in that: in step 4), the infrared shooting sensor module 3 starts: when the signal preprocessing circuit of the receiving module 2 in step 3) outputs the digital signal to the signal transfer transmission After the module 4, the signal transfer transmission module 4 transmits the digital signal to the central processing unit. After the central processing unit judges and processes the signal, if it considers the signal to be a valid signal, it sends a shooting instruction to the infrared shooting sensor module 3. , the infrared shooting sensor module 3 receives the shooting instruction...

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Abstract

The invention relates to an optical sensor and a detection method thereof. The optical sensor comprises a transmitting module, a receiving module, an infrared shooting sensor module and a signal transfer and transmission module, wherein the transmitting module embedded with an automatic detection control sensor emits invisible laser and infrared in specified wavelengths when meeting an automatic starting condition so as to excite non-visible optical anti-counterfeiting characteristics on a printed material, non-visible response light beams positioned at different frequency bands are received by the receiving module through an optical path device and are processed into electric signals, the infrared shooting sensor module is controlled to shoot an information coded graphics on the printed material, and the signal transfer and transmission module outputs the electric signals acquired through processing and the graphics. The optical sensor can detect the shape, code and strength of the weak anti-counterfeiting characteristics on the printed material, identify the information code of the graphics and extract implicit information content of the code, and can perform small-volume, integrated and low-cost reliable detection.

Description

technical field [0001] The invention relates to an optical sensor and a detection method thereof, which are suitable for automatic detection of non-visible optical anti-counterfeit features and non-visible information graphic codes on substrates by using optical frequency conversion and graphic information conversion. It belongs to the technical field of optical detection equipment. Background technique [0002] With the progress of society, anti-counterfeiting technology has made great progress. Regardless of currency, bills, certificates or commodities, various anti-counterfeiting technologies are more and more applied. For the sake of national economy and security, currency, bills, Certain anti-counterfeiting technologies applied to documents have always been at the cutting-edge and cutting-edge, and are constantly being updated. On the one hand, these anti-counterfeiting measures are expensive to apply, and the source of anti-counterfeiting materials is strictly control...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/63
Inventor 陈伟
Owner 广东恒立信息科技有限公司
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