CN2836041Y

CN2836041Y - Banknote verification microscope

Info

Publication number: CN2836041Y
Application number: CNU2005200634605U
Authority: CN
Inventors: 黄子志; 黄小伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-17
Filing date: 2005-08-17
Publication date: 2006-11-08
Anticipated expiration: 2015-08-17

Abstract

The utility model discloses a banknote verification microscope, which mainly comprises a micro rod. The micro rod is composed of a body case, an object glass and an eyeglass. The object glass is a convex glass, while the eyeglass is a concave lens. The object glass and the eyeglass are fixed inside the body case. The microscope also comprises a main outer shell, on which a chamber is formed. The micro rod is installed inside the chamber of the main outer shell through screwed connection mode. The utility model is simple in structure, light, cheap, and convenient to carry with strong practicability, and it is convenient for personal use. The focusing mode is direct spiral focusing, and the operation is fast and convenient.

Description

The currency examine microscope

Technical field

The utility model relates to micro-currency examine technology, refers in particular to a kind of currency examine microscope.

Background technology

Micro-currency examine technology is to eliminate counterfeit money for appointing, base oneself upon theory innovation, rely on modern science and technology, towards the numerous common people, thereby, 03253229.6) and " Apparatus for testing paper currency for genuineness " (application number: 200410052017.8) two innovative products, but still default at present a kind of portable personal cheap and good-quality " currency examine microscope " " micro-money identifier " (patent No.: has been arranged.

The utility model content

The purpose of this utility model is to provide a kind of and is easy to carry, makes things convenient for the individual currency examine microscope that uses.

For reaching above-mentioned purpose, solution of the present utility model is:

The currency examine microscope mainly comprises a micro-rod, and this micro-rod is made up of housing, object lens and eyepiece, and object lens are convex lens, and eyepiece is concavees lens, in object lens and the eyepiece stationary housing.

One end of the corresponding eyepiece of above-mentioned micro-rod also is provided with eyepiece cap, and there is light hole in eyepiece cap central authorities.

Above-mentioned microscope also comprises a main shell, forms a chamber on the main shell, and micro-rod is installed in the chamber of main shell by thread connecting mode.

The chamber below that above-mentioned main shell is installed micro-rod is fixed with transparent cup, transparent cup base seal.

Above-mentioned main shell also forms a battery case, and this battery case is offered corresponding inclined hole with the junction of transparent cup, and light emitting diode is installed in this inclined hole, and the battery and switch, the light emitting diode that are built in the battery case constitute light supply apparatus.

After adopting said structure, the utility model is simple in structure, and is light and handy cheap, is convenient for carrying, practical, and convenient individual uses.During use, the end that micro-rod is installed object lens places on the banknote to be tested, irradiate light produces reflected light to banknote to be tested, again through object lens (convex lens) and eyepiece (concavees lens), carry out micro-amplification, final in the virtual image of eyepiece as the upright amplification of square one-tenth, promptly the micro-image of banknote reaches micro-effect.

And the utility model can change the object distance of optical system by rotating micro-rod, with this, can change the size and the position of visual micro-image, to adapt to the requirement of different eyesights, promptly changes image distance by changing object distance, reaches the focusing purpose.This focusing mode all is different from " currency examine microscope " and " Apparatus for testing paper currency for genuineness ", and this focusing mode structure is very simple and reliable.

Description of drawings

Fig. 1 is the structural representation of the utility model preferred embodiment;

Fig. 2 is the index path of the utility model preferred embodiment;

Fig. 3 is the circuit diagram of the utility model preferred embodiment;

Fig. 4 is the equivalent index path of simple microscope.

Specific embodiment

As shown in Figure 1, 2, the currency examine microscope that the utility model discloses mainly comprises a micro-rod, and this micro-rod is made up of housing 3, object lens 4 and eyepiece 2, and wherein, object lens 4 are convex lens, and eyepiece 2 is concavees lens, in object lens 4 and eyepiece 2 stationary housings 3.

Observation for convenience, an end of the corresponding eyepiece 2 of micro-rod also is provided with eyepiece cap 1, and there is light hole in eyepiece cap 1 central authorities.

Focus in the observation process for convenience, microscope also comprises a main shell 5, form a chamber on the main shell 5, micro-rod connects by the chamber of screw thread 12 with main shell 5, install in the mode of rotatable lifting in the chamber of main shell 5, by the housing 3 that rotates micro-rod, micro-rod integral body is moved up and down along optical axis in chamber, change the object distance of optical system, with this, change the size and the position of visual micro-image, to adapt to the requirement of different eyesights, promptly change image distance, and realize focusing by changing object distance.

For support and resistate apart from and prevent contamination by dust object lens 4, main shell 5 is fixed with transparent cup 6, the beaker in its shape such as the chemical laboratory, transparent cup 6 base seals, no perforate below the chamber that micro-rod is installed.Because object lens 4 belows are useful on the fixedly transparent cup 6 on banknote plane, help to flatten banknote to be tested, add and adopt micro-rod directly to regulate in a spiral manner, so the optical stability of height is arranged.

For easy to use, no matter make the utility model all can use in bright and clear or dark weak place, main shell 5 also forms a battery case, be used for splendid attire battery 9, the top seal of battery case, switch 11 are installed in that (concrete mounting means is a lot of on the battery case, be located by prior art), the inside of battery case is provided with battery folder 8, and the bottom of battery case is provided with lid 10, can open easily and change battery 9.This battery case is offered corresponding

inclined hole

51 and 61 with the junction of transparent cup 6, and light emitting diode 7 is installed in this inclined hole 61, and light emitting diode 7 is good to adopt white light, this meet the printed matter color detect in to the international standard of optical source wavelength requirement.Battery 9 constitutes light supply apparatus with switch 11, light emitting diode 7, and it is whether luminous that switch 11 is used to control light emitting diode 7, as shown in Figure 3.

The present embodiment structure is quite exquisite, low cost, and practical being suitable for, dependable performance, easy to use.During use, currency examine person one hand-held currency examine microscope, the bottom of its transparent cup 6 is placed on the banknote to be tested, press switch 11, by switch 11 control light emitting diodes 7 electrified light emittings, its light beam is injected in the transparent cup 6, seeing through transparent cup 6 bottoms illuminates on the banknote to be tested, at this moment, the light that reflects on the banknote passes transparent cup 6 bottoms again and enters micro-excellent object lens 4 to realize optical sampling, and the banknote reflected light reflects through eyepiece 2 again after object lens 4 amplify, on object space (banknote) visual field, produce the virtual image of upright amplification, be the micro-image of banknote, the currency examine person observes the micro-image of banknote with eyes from eyepiece 2, finely tunes micro-rod with focusing according to currency examine person eyesight, make visual image the most clear, mobile banknote can be observed the micro-image of relevant points continuously, judges as for the true and false judging standard according to micro-currency examine technology of banknote.With finishing, shutdown gets final product.The utility model is for adapting to higher consumption demand, and also scalable optics index is divided into different class products.

Principle of the present utility model:

Usually, the cost of optical instrument is directly proportional with its measure of precision and complexity, and its complexity depends on the requirement to instrumental function, and measure of precision depends on the requirement of instrument to optical index.The most inappeasable in the optical index is various aberration indexs: as spherical aberration, aberration etc.By the basic theory of geometrical optics as can be known, the actual effectively enlargement factor of monolithic positive lens can only be 3-4 doubly.Thereby traditional microscope comprises that medical bio microscope, industrial gold phase microscope, printing are with site microscope (claiming 40-100 times of magnifier in the industry usually) etc., how object lens are magnifier with positive lens, make aberration compensation with negative lens, the lens combination that the normally some eyeglasses of its object lens are formed; Eyepiece adopts indigo plant to step on now or Kai Nieer and so on lens combination usually, and they are equivalent to a positive lens respectively, and its index path is seen Fig. 4, and seen in the eyepiece is the virtual image of standing upside down and amplifying.In the optical instrument of camera, video camera and so on, negative lens is generally used for interior focusing, zoom and aberration compensation; As spectacles, what see from spectacles is to dwindle the upright virtual image to negative lens in a large number in addition.

And the required enlargement factor of micro banknote tester is not high, belongs to low-power microscope, and much smaller than high-power microscope, the compensation of various aberrations becomes easier to the various aberrations (comprising spherical aberration, aberration etc.) that its unit optical element produces.Because the various aberration opposite in signs that positive and negative lens produce, so select suitable optical parametric, the aberration that (positive lens) object lens are produced compensates with (negative lens) eyepiece, makes total aberration minimum, satisfies practical requirement.Different currency examine persons' eyesight may be different, i.e. distance of distinct vision difference separately, thereby, require the image distance of this instrument should be adjustable; Because the image distance of overall optical system equals the long-pending of enlargement factor and object distance, so the fine setting object distance can obviously change image distance, promptly the utility model can adapt to the currency examine person demand of different eyesights.Because the banknote micro-image that the utility model became (see picture A among Fig. 2 " B ") for upright, meet the visual custom of people's daily life, thereby adapt to currency examine person from different cultures.

The concrete optical principle of the utility model is seen Fig. 2.Its key problem in technology is: eyepiece 02 is positioned at the handstand that object lens 01 are become with object AB and amplifies between the real image A ' B ', and A ' B ' should be at 02 object space f ₂-2f ₂Between.Is L1 from the object plane of AB to the distance eyepiece 02 interarea, is called microscopical structure length.As seen from Figure 4, (equivalence) eyepiece 02 of conventional microscope is positioned at the right side that real image A ' B ' is amplified in handstand that object lens 01 are become with object AB, is L2 from the object plane of AB to the distance (equivalence) interarea of eyepiece 02, because 02 be actually lens combination, so the L2 physical length is also bigger.Comparison diagram 2 and Fig. 4, under identical enlargement factor: as seen, L2 is greater than L1.L1 of the present utility model sees the product coloured picture less than 8cm, and the left side is a lighter among the figure.In addition, be also shown in by Fig. 2, because 02 required clear aperture is less than Fig. 4 among Fig. 2, as can be known, under the same line visual field, the required eyepiece external diameter of the utility model optical system is less than conventional microscope.

Characteristics of the present utility model:

One, negative lens is made eyepiece: negative lens is concavees lens, is commonly called as divergent lens. At various light Learn in the instrument, it is typically used as the supporting role, as being used for aberration compensation or interior focusing; People are the most familiar Be can see by it dwindling the upright virtual image, so more application then is spectacles, several The unmanned willing optical amplifier that is used for. By the theory of geometric optics of negative lens as can be known: when virtual object (as A ' B ' among Fig. 2) in the time of between its object space f～2f, in its picture side-∞～-2f ' it Between the virtual image A that form to stand upside down amplifies " B ". This innovative significance first significantly reduces the microscope structure Make length L 1 and eyepiece bore, make its exquisiteness; It two is to utilize positive and negative lens aberration complementation Principle, the aberration that compensation object lens (positive lens) produce makes that total aberration is minimum to satisfy practical wanting Ask; It three is to reduce optical element quantity in the optical system, in the hope of reducing cost.

Two, micro-rod and transparent cup: micro-rod has solidified the distance of object lens and eyepiece, transparent cup Stablized object distance, therefore, the optical system univers parameter can be highly stable. This innovative significance one From designing the reliability of upper assurance the utility model performance; Its two be since transparent cup have dustproof Function is so remove the trouble of cleaning object lens from, the convenient use.

Three, directly spiral focusing: cooperate little revolving as spiral between micro-excellent bottom and the main shell During micro-rod, significantly change image distance by the fine setting object distance, there is no in the middle of other in its focus control Element. This innovative significance first can adapt to different eyesight persons in the hope of better applicability; It two is Make focusing not only surely but also accurate, the convenient use; It three is to simplify focus adjusting mechanism, reduces cost.

Four, main shell: main shell connects microscope and battery case, disposes independently power supply and opens Close; The space of battery case is conducive to the future feature upgrading. This innovative significance first makes whole knot The structure exquisiteness; It two is to make appearance and modeling attractive in appearance; It three is to be later on function upgrading headspace.

Claims

1, currency examine microscope is characterized in that: mainly comprise a micro-rod, this micro-rod is made up of housing, object lens and eyepiece, and object lens are convex lens, and eyepiece is concavees lens, in object lens and the eyepiece stationary housing.

2, currency examine microscope as claimed in claim 1 is characterized in that: an end of the corresponding eyepiece of micro-rod also is provided with eyepiece cap, and there is light hole in eyepiece cap central authorities.

3, currency examine microscope as claimed in claim 1 is characterized in that: microscope also comprises a main shell, forms a chamber on the main shell, and micro-rod is installed in the chamber of main shell by thread connecting mode.

4, currency examine microscope as claimed in claim 3 is characterized in that: the chamber below that main shell is installed micro-rod is fixed with transparent cup, transparent cup base seal.

5, currency examine microscope as claimed in claim 4, it is characterized in that: main shell also forms a battery case, this battery case is offered corresponding inclined hole with the junction of transparent cup, light emitting diode is installed in this inclined hole, and the battery and switch, the light emitting diode that are built in the battery case constitute light supply apparatus.