CN2168291Y - Sunlight banknote secret mark identifier - Google Patents

Abstract

The sunlight banknote secret mark identifier is a tool for identifying whether a banknote has a fluorescent ink secret mark (5) by using ultraviolet rays (6) in sunlight. A window on the wall surface of a hole of a light blocking barrel (1) is made of a monochromatic transparent material (2), the window is specially used for enabling sunlight ultraviolet rays (6) to enter a positioning port (4), the hole is close to one end of the window to serve as the positioning port (4), the other end of the hole serves as an observation port (3), however, the hole of the light blocking barrel (1) is made of a transparent material or no material, and the rest materials of the barrel can block most of visible light. When the bill secret mark (5) only contains monochromatic light and ultraviolet rays, the secret mark characters can be clearly seen through the observation port (3), and the purpose of further determining the true and false bills is achieved.

Description

Sunlight hidden-mark identifying device for bank note

The utility model is to utilize UV sunlight being printed on a kind of discriminating instrument that special fluorescent ink secret mark printed words show in the banknote.

The instrument of the discriminating fluorescence secret mark banknote of in the patent documentation and market sale in recent years mainly is artificial uviol lamp, though result of use is good, manufacturing cost is higher, carries inconvenience, consumed power, and use more to human body how many influential, present banks and consortium.

On top of (China's 50,100 yuan of new editions playing distribution in 92 years are except having the watermark and metal fine that can directly differentiate with sunlight in broad masses' hand for the several false proof measure that makes genuine notes, positive fluorescence secret mark in addition), it is easy, with low cost that the utility model has designed a kind of structure, also can show the discriminating instrument of fluorescence secret mark with sunlight easily.

Utility model is achieved in that a monochromatic transparent material, and it must have and absorbs most visible light in the sunlight, the characteristics that only allow ultraviolet ray and pass through near the monochromatic visible light of ultraviolet wavelength.When banknote secret mark place had only the ultraviolet ray of this filtration of material and purple light, the secret mark printed words will show, even use the ultraviolet irradiation intensity on rainy day, banknote fluorescence secret mark printed words also can be known and see.

The utility model has the following advantage and effect: critical material is exactly a colored transparent material, and cost is quite low, can carry, there is not energy resource consumption in the use, very easily promote, increased the chance of identification counterfeit money, this will produce positive impact to China's economic life.

Accompanying drawing 1 is the utility model principle schematic.

1. baffling barrels, 2. optical filters, 3. observation panels, 4. positioning ports, 5. secret mark printed words, 6. sunshines, 7. people's naked eyes among the figure

In the drawings, open a window at baffling barrel (1) wall, load onto monochromatic filter (2) with the purple best results, optical filter (2) must be near tube (1) Kong Dikou, make sunlight (6) can fully pass through tube (1) Kong Dikou by the monochromatic light and the ultraviolet ray of optical filter (2), mouth is as the positioning port (4) of determining banknote check position at the bottom of tube (1) hole, when positioning port (4) when being adjacent to banknote, just fully be projected on the banknote face from the ultraviolet ray and the monochromatic light of optical filter by positioning port (4).The effect of baffling barrel (1) is to block other visible lights to inject in tube (1) hole, thereby ultraviolet ray and monochromatic light that tested position is only seen through from optical filter (2) so just can clearly show banknote secret mark printed words (5).Baffling barrel (1) hole is suitable for reading as observation panel (3), naked eyes (7) want to observe directly from observation panel (3) scope of positioning port (4), should bright medium of full impregnated such as air, flint glass between observation panel (3) and the positioning port (4), could not influence the observing effect of secret mark printed words like this, the size of observation panel (3) is suitable, requires in principle to make other too many visible lights enter the scope that can observe positioning port (4) under the situation of tube in (1) hole again easy and conveniently.The plane of positioning port (4) is smooth, does not answer light leak when being adjacent to the bank-note paper plane.

During use, positioning port (4) is aimed at the banknote position that to differentiate, be adjacent to, when sunlight (6) ultraviolet ray and purple light projected to fluorescence secret mark place (5) by optical filter (2) window, naked eyes (7) just can directly be seen banknote secret mark printed words (5) clearly from observation panel (3) as far as possible.

Claims (1)

1. A kind of sunlight banknote secret mark Discr., utilize sunshine to make light source, make optical filter with purple or near the monochromatic transparent material of purple, the banknote secret mark that ultraviolet ray of filtering and monochromatic light are printed special fluorescent ink shows, it is characterized in that an optical filter is contained on the baffling barrel wall window, mouth makes to differentiate the positioning port at banknote secret mark position at the bottom of the tube hole, and tube hole work suitable for reading can be observed the observation panel of positioning port scope.