Popular currency examining device

Abstract

The invention is a kind of widespread money-checking device, which mainly made up of laser diode, a ultraviolet diode, a firing polarization luminotron, a current limiting resistance, a power switch and a direct current power, the laser diode, the ultraviolet diode, the firing polarization luminotron and the firing polarization luminotron are connected to the direct current power through the current limiting resistance and the power switch. Because of using the firing polarization luminotron whose size likes a transistor, the volume of the product volume likes a match box; it can check out the hidden label, it is convenient, and simple.

Description

technical field [0001] This patent relates to a device for checking genuine and counterfeit banknotes, in particular to an easy-to-use popular banknote checking device that is as small as a matchbox and can be carried by everyone, and belongs to the field of checking banknotes. Background technique [0002] Due to repeated bans on counterfeiting activities, all countries are vigorously cracking down on the manufacture and sale of counterfeit banknotes. At the same time, they are also constantly adding high-tech anti-counterfeiting marks on new banknotes. ) and photoluminescent hair color (WFF) and other invisible anti-counterfeiting marks are enough to distinguish genuine coins from counterfeit coins, so that people will keep counterfeit coins out, which is an effective way. However, because these high-tech anti-counterfeiting marks are difficult to identify with the naked eye, it is difficult to quickly distinguish between true and false, so criminals still have opportuniti...

AI Technical Summary

Problems solved by technology

However, because these high-tech anti-counterfeiting marks are difficult to identify with the naked eye, it is difficult to quickly distinguish between true and false, so that criminals still have opportunities to take advantage of them.

In order to solve the problem that traditional banknote detectors cannot recognize these high-tech anti-counterfeiting marks, I focus on research and use polarized light devices to directly observe polarized invisible marks printed on banknotes, and have obtained ZL00220757.5 No. new banknote detector and the Chinese patent of ZL00221339.7 arbitration banknote detector, but due to the large size of these two patented products, they are mainly suitable for fixed places

In order to reduce the volume, a portable banknote detector of patent No. ZL01237306.0 was designed. Although its volume is much smaller than that of the desktop banknote detector, because the polarizing device is a traditional cassette optical device, a polarizing light source is required. Installed at the proper position on the back and lower side of the cassette to irradiate the polarized invisible mark at a certain angle, and then install the analyzer lens on the front of the cassette on the reflected light path at an appropriate distance from the reflection point, in order to facilitate the observation of polarized light from the analyzer lens Invisible logo, the analyzer lens cannot be too small, and the analyzer lens and the polarizer light source need to be installed on both sides of the cassette and far away from each other, so its volume is difficult to be smaller, and the banknotes need to be placed in the cassette Can be tested, and it is inconvenient to use, and it is difficult to achieve the popularization effect owned by everyone

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