CN101044519A

CN101044519A - Keypad security device

Info

Publication number: CN101044519A
Application number: CNA2005800359687A
Authority: CN
Inventors: 尼尔·拉德福德
Original assignee: SECURE ACCESS SOLUTIONS Ltd
Current assignee: SECURE ACCESS SOLUTIONS Ltd
Priority date: 2004-10-22
Filing date: 2005-10-21
Publication date: 2007-09-26
Also published as: GB0423508D0; CA2584212A1; WO2006043074A9; AU2005297073A1; JP2008517394A; EP1805729A2; KR20070097029A; ZA200703914B; WO2006043074A3; WO2006043074A2; BRPI0517297A

Abstract

A keypad security device (10) comprises an enclosure (14) having a viewing aperture (26) and an access aperture (30). The enclosure (14) at least partially surrounding a keypad such that the keypad is viewable through the viewing aperture (26) and accessible by a user through the access aperture (30), the viewing aperture including a security pane (36) arranged so as to permit the keypad to be viewed clearly from the point of view of a user of the keypad and to prevent the keypad from being viewed from the point of view of a person other than the user, wherein the security pane (36) includes a refractive lens.

Description

Keypad security device

Technical field

The present invention relates to the data entry key disk security apparatus, especially but not exclusively relate to the data entry key disk security apparatus that is mounted to ATM (ATM (Automatic Teller Machine)), retail chip and PIN (Personal Identification Number) EPOS (electronic marketing terminal) system and PED (PIN input equipment).

Background technology 1

Usurping ATM card in recent years increases from the crime of ATM withdrawal.In order to implement this crime, criminal need obtain the details of legal user's ATM card usually and activate the required PIN of this card.When legal user uses ATM, can obtain its PIN by several different methods.Criminal can stand near the user simply, and observes the user and import its PIN, and this behavior is commonly referred to as shoulder and peeps.The more seasoned method that obtains PIN is provided with camera in addition near the ATM that can observe keyboard.Similarly potential safety hazard also is present in PIN input equipment point-of-sale terminal more and more common in the retail environment.

Summary of the invention

The invention provides a kind of keypad security device, it comprises the outer cover with viewport and handle hole, outer cover to small part around keyboard, make and to observe keyboard by viewport, and the user can operation keyboard by handle hole, viewport comprises to be arranged to allow can clearly observe keyboard and prevent that wherein guard plate comprises refractor from the guard plate of non-user's view keyboard from keyboard user's visual angle.

The keyboard outer cover covers keyboard, prevents that user's thump is monitored.Guard plate allows the user reach before use when using can observe keyboard, but prevents to observe by guard plate near the people that the user stands user's thump.Guard plate prevents that also user's thump for example is arranged on the first-class telemonitoring of shooting of outer cover outside near keyboard.

Guard plate is located in the viewport, makes the optical axis extend to keyboard therefrom.Align with this optical axis and can clearly observe keyboard with the people who observes keyboard along this axis.If attempt to observe keyboard along the axis of the non-optical axis by guard plate, then guard plate partly or entirely twists and/or fuzzy keyboard view.The optical axis can be basically perpendicular to guard plate.The optical axis can be basically perpendicular to guard plate and keyboard.Guard plate can be provided with a plurality of optical axis, can know and distortion or do not observe keyboard faintly along these optical axis.These optical axis define the observation passage that can clearly observe keyboard.

In one embodiment of the present invention, guard plate can comprise in the use lens of the observed keyboard view of conversion user when observing keyboard by guard plate.Preferred embodiment middle lens are magnifier.Lens preferably have the function of amplifying and twisting the view that passes through its observation.Lens preferably have the refractive index between 1.3 to 1.8.More preferably lens have the refractive index between 1.4 to 1.7.Lens can have the refractive index between 1.45 to 1.65, perhaps have the refractive index between 1.47 to 1.61 alternatively.In one embodiment, lens can be made and had a refractive index between 1.47 to 1.51 by acryl resin.Alternatively, lens can be made and had a refractive index of 1.52 to 1.56 by vinyl chloride.In another embodiment, lens can be made and had a refractive index between 1.49 to 1.53 by tygon.Also have in the another kind of embodiment, lens can be made and had a refractive index between 1.57 to 1.61 by polycarbonate.

Lens can be Fresnel Lenses etc.The attempt of term Fresnel Lenses comprises that utilization is applied to its surperficial texture to obtain the camera lens of required image conversion characteristics.The image transformation characteristic by the shape generation of lens can be strengthened and/or supply to this texture.Guard plate can be provided with a plurality of lens, wherein each lens one or more keys on the keyboard that can align.Guard plate can comprise an image, and it makes and can see through the image viewing keyboard along the optical axis or passage, but when the axis of the optical axis in not lining up the observation passage was observed, it fogged keyboard.Image can be located on the guard plate or in the guard plate.For example image can etching or is applied to by alternate manner on the outside surface of guard plate.Alternatively, image can be embedded in the guard plate.In this embodiment, image can be a hologram image.

Guard plate can comprise the single-piece member of being made up of vitreous materials such as plastic materials such as polycarbonate or glass.Guard plate can be constructed by lamellae.In this embodiment, guard plate can comprise the plane institution movement up and down that is provided with lens therebetween.Plane institution movement can have and another member and the essentially identical shape of lens.Guard plate can be incorporated in the outer cover during fabrication, and for example guard plate can be incorporated in the outer cover when being molded as outer cover by plastic material.Alternatively, guard plate can remove from outer cover.Thereby for example can replace after guard plate damage or the scraping etc.

Outer cover can comprise to be arranged to the wall of small part around keyboard.Outer cover comprises alternatively to be arranged to a plurality of walls of small part around keyboard.Handle hole can be limited by the hole of being located on the wall.Alternatively, handle hole can be by gap or the space boundary be located between two walls.Wall can be provided with the window that makes light can enter outer cover and prevent to observe by it keyboard.Window preferably includes pane, and it is translucent, frosted, opaque or handle to prevent observing keyboard by it through other.Wall can be attached or the wall of the bottom of keyboard is installed on it.Guard plate can be contained in the member that can be mounted to wall in this case.

Outer cover can be provided with additional handle hole.In use, this additional access aperture can be alignd the feature of the equipment of keyboard is installed on it.The additional access aperture coin discharge of ATM that can align for example.The existence of additional access aperture makes the user to touch coin discharge by outer cover.Should be appreciated that thus outer cover can have the function of covering coin discharge, to prevent undelegated contact to the coin that therefrom spues.Preferably, thus additional access aperture is arranged on a side user relative with the keyboard operation hole on the outer cover can stretch into outer cover with hand easily.

Viewport preferably is arranged on the part of outer cover of covering wall.Preferably, the viewport alignment is basically parallel to the plane on keyboard plane.

Description of drawings

Embodiments of the present invention are now described with reference to the accompanying drawings, wherein:

Fig. 1 illustrates the exploded perspective view of the safety equipment of first embodiment of the invention;

Fig. 2 illustrates the stereographic map of the equipment of Fig. 1 at assembled state;

Fig. 3 illustrates the exploded perspective view according to the safety equipment of another embodiment of the present invention;

Fig. 4 illustrates the stereographic map of the equipment of Fig. 3 at assembled state;

Fig. 5 illustrates the side view according to equipment signal of the present invention that is mounted to ATM;

Fig. 6 to 8 illustrates by the view according to the ATM keyboard of equipment of the present invention;

Fig. 9 illustrates the stereographic map according to safety equipment outer cover of the present invention;

Figure 10 and 11 illustrates the stereographic map that becomes example according to the EPOS of safety equipment of the present invention;

Figure 12 illustrates the stereographic map according to ATM keypad security device of the present invention;

Figure 13 illustrates the guard plate of equipment of Figure 12 about the side view of the alignment thereof of keyboard; And

Two EPOS/PED in addition that Figure 14 and 15 illustrates safety equipment become routine stereographic map.

Embodiment

At first see figures.1.and.2, wherein show be denoted as generally 10 according to keypad security device of the present invention.Equipment 10 comprises base plate 12, outer cover 14, top board 16 and visor mechanism 18.Light sheet materials such as base plate 12 usefulness such as steel plate are made, and make its shape be suitable for the front panel of ATM.It is porose 20 that base plate 12 is provided with, and its size and dimension is bigger than the data entry keyboard (not shown) of ATM.Should understand, hole 20 is positioned at base plate, makes when base plate 12 is filled to ATM, therefrom can be fully near keyboard.

Outer cover 14 is by making as single-piece light sheet materials such as steel plate or aluminium alloy plates, and it comprises a pair of sidewall that separates 22, and cross-over connection part 24 connects the two side.Cross-over connection partly is provided with viewport 26, and the bottom of every sidewall 22 is provided with the flange 28 of horizontal expansion.The size in the hole 20 of base plate 12 can be held flange 28, makes them flush installation with base plate 12.Should be appreciated that outer cover 14 is easy to make by the punching press and the extrusion operation of routine.Sidewall 22 and cross-over connection part 24 towards defining handle hole 30, make that the user can reach into when equipment 10 is filled to ATM.Outer cover is provided with other facing near hole and the wall that extends between sidewall 22 and cross-over connection part 24 alternatively, hereinafter is called rear wall.

Top board 16 and base plate 12 structures are similar, also by making as light sheet materials such as steel plates, and are provided with porosely 32, and outer cover 14 is given prominence to by this hole during use.The size and dimension of roof hole 32 makes top board 16 cover on the flange 28 of outer cover.Access panel assembly 18 comprises back plate 34 and guard plate 36.Back plate 34 and guard plate 36 in case anti-avulsion from mode be filled to the outer cover viewport.Back plate 34 is enough transparent, observes the ATM keyboard thereby allow to see through it.Back plate 24 can be made by plastic materials such as for example polycarbonate.Alternately, back plate can be made by tempered glass.Guard plate 36 is configured to make the ATM keyboard to be observed from specific user observation place, and prevents the keyboard from other user observation place observation ATM.To describe the operation of guard plate 36 below in detail.

The equipment 10 of confined state shown in Fig. 2.During use, use the user of the ATM of the equipment of being equipped with 10 also will block insertion in a usual manner near ATM.When prompting input PIN, the user stretches into handle hole 30 with hand and adjusts the position of oneself, makes and oneself can observe the ATM keyboard by viewport 26.By being provided with outer cover sidewall 22, optional rear wall and guard plate 36, prevent that the people except that the user from observing keyboard.

Referring now to Fig. 3 and 4, be denoted as 40 optional embodiment shown in it generally according to keypad security device of the present invention.Equipment 40 comprises a pair of base plate 42 and 44, outer cover 46, inlaid glass component 48 and comprises the support 50 of guard plate 52.Base plate 42,44 is mountable to the keyboard area of ATM, and is respectively arranged with the hole 43,45 by its operable key dish.Base plate 42,44 is made by light sheet materials such as for example steel plates.Outer cover 46 is made by light sheet materials such as for example steel plates, and comprises pair of sidewalls 54 and rear wall 56.Each wall 54,56 all is provided with porose 58.Inlaid glass component 48 comprises makes one deck plastic material that becomes for example polycarbonate etc. of complementary shape with outer cover 46.Inlaid glass component 48 is mountable to outer cover 46, thereby covers on the hole 58 of enclosure wall 54,56.Opaque but the enough printing opacities of inlaid glass component 48, thus allow light to pass and illuminate the inside and the keyboard of outer cover 46, but be configured to prevent observe keyboard by it.Inlaid glass component 48 can carry out light scattering surface treatment, for example frosted or discrepitate.

Support 50 comprises frame part 60 and pair of leg 62.The size and dimension of frame part 60 is configured to be coupled to the upper area of the shell 46 that wall 54,56 limits.Leg 62 is arranged to be coupled to sidewall 54 to limit handle hole, and the user can touch the ATM keyboard by handle hole.Guard plate 52 is attached in the frame part 60, and support 50 and inlaid glass component 48 can be mounted to outer cover thereby be difficult for disengaging therefrom.Guard plate 52 is configured to allow to observe the ATM keyboard from specific user observation place, prevents to observe the ATM keyboard from other users' observation place.

The equipment 40 of assembled state shown in Fig. 4.During use, use the user of the ATM of the equipment of being equipped with 40 will block insertion near ATM and in the mode of routine.When prompting input PIN, the user stretches into handle hole 64 with hand and adjusts the position of oneself, makes and oneself can observe the ATM keyboard by guard plate 52.By being provided with enclosure wall 54,56 and guard plate 52, prevent that the people except that the user from observing keyboard.

As mentioned above,

guard plate

36,52 is arranged so that can observe keyboard from specific observation place, and prevents to observe from other position keyboard.In one embodiment,

guard plate

36,52 comprises lens, and these lens amplify the view of keyboard the user when special angle is observed by

plate

36,52, and produce the view of distortion when from other angle observation.Fig. 5 illustrates and keyboard 72 is housed and according to the synoptic diagram of the ATM 70 of

equipment

10,40 of the present invention.Equipment 10,40 is provided with amplifying lens 74, for example Fresnel lens.Define the observation passage on the

equipment

10,40, its cross sectional dimensions is substantially equal to the size of lens 74.Will observe the enlarged image of whole keyboard as shown in Figure 6 along the people who observes the axis 78 scioptics observation keyboard 72 that is basically perpendicular to lens 74 and keyboard 72 in the passage.If attempt to observe the outer axis of passage 80 and observe along being not orthogonal to lens and keyboard and extending to, image that will display keyboard 72 distortions.Fig. 7 and 8 show may observed view type example.The bottom of keyboard 72 comprises that 0 key fogs among Fig. 7, and the top of keyboard comprises that 1,2 and 3 keys fog among Fig. 8.

Guard plate can adopt the form beyond the lens.For example, guard plate can be therein or is kept image on it, see through the image user and can observe keyboard, but this image masking the view of keyboard of the view from the visual angle that the legal user except that keyboard uses.For example guard plate can comprise the hologram image that legal user is hidden.In another embodiment, guard plate can comprise a plurality of windows of the key of the keyboard that aligns.Each window can comprise lens, the image that is kept or both combinations.

Referring now to Fig. 9, it shows the optional embodiment that is denoted as 82 safety equipment generally.The same characteristic features of describing with aforementioned embodiments is with identical designated.Equipment 82 comprises the outer cover with a pair of sidewall 22 that separate and that connected by cross-over connection part 24.Be provided with viewport 26 in the cross-over connection part 24, wherein can keep guard plate (not shown).Wall 22 and cross-over connection part 24 define handle hole 30, and when equipment 82 was contained on the keyboard, the user can stretch into by handle.Outer cover is made one-piece part with hard plastics by molded operation.Alternatively, outer cover can be with making as metals such as aluminium alloys.Guard plate can be incorporated in the outer cover when molded.Alternatively, guard plate can be reequiped to outer cover after molded.

Equipment 82 also is provided with a plurality of holes that separate each other 84 along the edge of the cross-over connection part 24 relative with handle hole 30.Hole 84 can enter in the space that is impaled by outer cover light, and can not pass through its Direct observation keyboard.Should understand, wall 22 and cross-over connection part 24 define another additional handle hole 85 at the opposite side of outer cover.In the structure of some ATM, coin discharge is positioned at the front of keyboard a little by last place.This structure makes the user enough the same hand by keyboard input PIN to be taken away by bank note.The user that is arranged so that of additional access aperture 85 can get bank note, and equipment 82 has covered coin discharge on the whole and prevented that the people beyond the ATM user from snatching away money simultaneously.

Figure 10 illustrate be denoted as generally 86 according to safety equipment of the present invention, it is configured to chip and PIN keyboard 88.The same characteristic features of describing with aforementioned embodiments is with identical designated.This equipment comprises the outer cover 90 with bottom 92, a pair of sidewall that separates 22 and the cross-over connection part 24 of extending therebetween.Cross-over connection part 24 comprises viewport 26, wherein can keep guard plate (not shown).In the embodiment that illustrates, bottom 92, sidewall 22 and cross-over connection part 24 are molded as single-piece by plastic material.Advantageously, guard plate can be incorporated into when molded in the outer cover 90.

Handle hole 30 is located at a side of outer cover 90, and additional handle hole 94 is located at its opposite side.Handle hole 30 makes the user can touch keyboard 88, and additional handle hole 94 makes user or teller assistant chip card can be injected keyboard 88 under the situation of needs.Cross-over connection part 24 is provided with a plurality of holes 96, and the light around it makes enters outer cover 92 and can not observe whole keyboard.

Figure 11 illustrates the safety equipment 98 that are similar to Figure 10, and identifies its same characteristic features with identical accompanying drawing number.The difference of this equipment 98 is that it is provided with bigger viewport 26 and does not comprise light hole.Equipment 98 is mounted to flexible grip 100, and flexible grip 100 is connected to the foot 102 that this equipment can be installed in sales section again.

Referring now to Figure 12 and 13, it illustrates and is denoted as another embodiment according to safety equipment of the present invention of 104 generally.The common trait of describing with aforementioned embodiments is with identical designated.Equipment 104 is similar to the equipment of describing with reference to Fig. 9.Equipment 104 comprises the outer cover with a pair of sidewall 22 that separate, that connected by cross-over connection part 24.Be provided with viewport 26 in the cross-over connection part 24, wherein can maintain guard plate (not shown).Wall 22 and cross-over connection part 24 define handle hole 30, and the user can stretch into by handle when outer cover is installed on the keyboard.Outer cover 82 is made one-piece part by rigid plastic by molded operation.Alternatively, outer cover 82 can be made by casting operation by metals such as for example aluminium alloys.Guard plate can be incorporated in the outer cover when molded.Alternatively, guard plate can be reequiped to outer cover after making.

This outer cover also is provided with the hole 84 at a plurality of intervals around viewport 26.Hole 84 can enter in the space that is impaled by outer cover light, and can not pass through its Direct observation keyboard.Should understand, wall 22 and cross-over connection part 24 define another additional handle hole 85 at the opposite side of outer cover.In the structure of some ATM, coin discharge is positioned at the front of keyboard a little by last place.This structure makes the user enough the same hand by keyboard input PIN to be taken away by money.The user that is arranged so that of additional handle hole 85 can get money, and equipment 82 has covered coin discharge on the whole and prevented that the people beyond the ATM user from snatching away money simultaneously.

Outer cover is preferably and does not allow by the translucency plastic material of observing keyboard around the wall 22 and the cross-over connection part 24 of viewport 26 molded simultaneously again by the light that can pass to a certain degree.The translucence of plastic material makes the user of ATM or operator be easy to find whether to have the first-class inside surface that is installed in outer cover of miniature video camera.In addition, the inside surface of outer cover can be provided with texture, makes first-class being difficult to of miniature video camera install.For example, the inside surface of outer cover can have rib or make carinate.

Equipment 104 can be mounted to ATM by any suitable stationary installation.In the embodiment that illustrates, the base 106 of each wall 22 is provided with the projection 108 of the corresponding aperture that extends through ATM.Projection 108 can have screw thread with coupling nut thereon.Alternatively, each wall 22 lower limb can be provided with flange, and suitable stationary installation is extended by this flange.

Equipment 104 is mounted to ATM, makes not exclusively alignment keyboards of viewport 26 and guard plate 36.Figure 13 illustrates the example of this alignment thereof between viewport 26, guard plate 36 and the keyboard 110.The lower limb 114 of the row of going up of the key 116 of the coboundary 112 alignment keyboards 110 of viewport 26 and guard plate 36.This dislocation alignment guarantees that the user of ATM keyboard 110 can fully observe keyboard 110 by guard plate 36, and attempt from observe the people of keyboard corresponding to the position beyond the position of user's observation point, no matter be, all can not observe whole keyboard by guard plate 36 from user's shoulder or by being installed in above the ATM or near camera remote reviewing.

Referring now to Figure 14, it illustrates and is denoted as 118 equipment generally, and this equipment is configured to use with the EPOS chip of the type of present retailer's use and PIN keyboard PED 88.Equipment 118 is similar to the equipment of describing with reference to Figure 10 and 11, and its same characteristic features is with identical designated.

Equipment 118 comprises the outer cover 120 with bottom 92 and a pair of sidewall that separates 22.Bottom 92 and wall 22 are made by from one piece.For example bottom 92 and wall 22 can be made by plastic material by molded operation.Alternatively, outer cover can be made by metals such as for example aluminium alloys.Extend in and be framework 124 between the coboundary 122 of wall 22, it defines viewport 26 and guard plate (not shown) wherein can be housed.Framework 124 connects one of them wall 22 pivotly by hinge 126, and gripping device (not shown) can be arranged between framework 124 and another wall simultaneously, so that framework 124 is remained on illustrated position.

Handle hole 30 is located at outer cover 120 fronts, and additional handle hole 94 is located at its back.Term " front " is interpreted as keyboard 88 the most close user's edge.Handle hole 30 makes that the user can operation keyboard 88, and additional hole 94 makes under the situation of needs user or teller assistant chip card can be inserted the card receiving slit of keyboard 88.Framework 124 and guard plate can pivot along arrow 128 indicated directions.Should be appreciated that framework 124 and guard plate can upwards pivot and away from keyboard 88.Thereby guard plate can shift out from user's the sight line about keyboard 88.Being difficult to observe by guard plate the user under the situation of keyboard needs like this.Guard plate also can move so that the PIN card can be inserted in the groove of upper surface of keyboard 88.After inserting card, guard plate can be retracted the position that the user is ready to import PIN.

The bottom 92 of outer cover 120 is mounted to post or pedestal 136.Bottom 92 both was mounted to and can rotates along the sensing of arrow 138 with respect to pedestal 136, can pivot with respect to the sensing of pedestal 136 along arrow 140 again.The bottom 92 removably is mounted to pedestal 136, so outer cover 120 and keyboard 88 can be removed and pass the user as a whole.

Be to be understood that framework 124 can connect the wall of outer cover 120 movably with other device.For example, framework 124 can be mounted to one or two wall 22 of outer cover 120 slidably.In optional embodiment, framework 124 can be removed fully.

Figure 15 illustrates another embodiment that is denoted as 130 equipment generally, and EPOS chip and PIN keyboard 88 that this equipment is configured to the type used now with the retailer use.Equipment 130 is similar to the equipment of describing with reference to Figure 10,11 and 14, and its same characteristic features is with identical designated.

Equipment 130 comprises the open outer cover 132 in side with bottom 134 and crooked sidewall 22.Outer cover 132 is mounted to pedestal 136.Bottom 134 and wall 22 are formed by from one piece.For example bottom 134 and wall 22 can be made by molded operation by plastic material.What extend from the coboundary 122 of wall 22 is the framework 124 that defines viewport 26, and guard plate (not shown) wherein can be installed.Framework 124 passes through hinge 126 coboundary 122 of connecting wall 22 pivotly.

Handle hole 30 is located at the front portion of outer cover 120, and additional access aperture 94 is located at its rear portion.Handle hole 30 makes that the user can operation keyboard 88, and additional hole 94 makes under the situation of needs user or teller assistant chip card can be inserted the card receiving slit of keyboard 88.Framework 124 and guard plate can pivot along the direction of arrow 128 appointments.Should be appreciated that framework 124 and guard plate can upwards pivot and away from keyboard 88.Thereby guard plate can shift out from the sight line of user about keyboard 88.Being difficult to observe by guard plate the user under the situation of keyboard needs like this.

Be to be understood that framework 124 can be connected to the wall of outer cover 132 movably with other device.For example, framework 124 can be mounted to the wall 22 of outer cover 132 slidably.In optional embodiment, framework 124 can be removed fully.

Equipment 130 can be provided with additional wall member (not shown), and it can be mounted to bottom 134, thereby constructs outer cover 132 to be similar to the mode shown in Figure 14.This additional wall member can remove, and framework 124 can be switched to the position shown in Figure 15 so that keyboard 88 can remove and pass the user from outer cover 132.

The outer cover of previously described embodiments of the present invention is suitable for being included in the lighting device that illuminates keyboard under the low light level situation.Lighting device can also be arranged to by guard plate light be derived from outer cover.Yin Dao the light thump that first-class observation is carried out on keyboard that can prevent to make a video recording by this way.

The embodiment of foregoing invention relates to the keyboard that is installed on ATM and EPOS PIN input equipment or PED.Should be appreciated that the present invention can combine with other keyboard, only lift several examples, as the equipment that is used in combination with safety door input keyboard and warning system order keyboard.Be filled to keyboard in the time of can or being attached to keyboard than large equipment at initial manufacturing keyboard according to equipment of the present invention.Alternatively, can reequip to being attached to according to equipment of the present invention than the keyboard in the large equipment.

Claims

1. keypad security device, it comprises the outer cover with viewport and handle hole, described outer cover to small part around keyboard, make can observe described keyboard and user by viewport can operation keyboard by handle hole, described viewport comprises guard plate, it is arranged so that can clearly observe keyboard from its user's visual angle and prevent view keyboard from non-user, and wherein said guard plate comprises refractor.

2. keypad security device as claimed in claim 1, wherein said lens have the refractive index between 1.3 to 1.8.

3. keypad security device as claimed in claim 2, wherein said lens are made by acryl resin and are had a refractive index between 1.47 to 1.51.

4. keypad security device as claimed in claim 2, wherein said lens are made by vinyl chloride and are had a refractive index between 1.52 to 1.56.

5. keypad security device as claimed in claim 2, wherein said lens are made by tygon and are had a refractive index between 1.49 to 1.53.

6. keypad security device as claimed in claim 2, wherein said lens are made by polycarbonate and are had a refractive index between 1.57 to 1.61.

7. each described keypad security device in the claim as described above, wherein said lens are Fresnel Lenses.

8. each described keypad security device in the claim as described above, wherein said guard plate comprises image, described image makes and can observe described keyboard along the predetermined optical axis by it, but makes described keyboard fog when the edge does not line up the axis observation of the described optical axis.

9. keypad security device as claimed in claim 8, wherein said image setting are on described guard plate or in the described guard plate.

10. keypad security device as claimed in claim 9, the etched or alternate manner of wherein said image is applied to the surface of described guard plate.

11. each described keypad security device in the claim as described above, wherein said guard plate comprises single-piece member.

12. as each described keypad security device in the claim 1 to 10, wherein said guard plate is a constructed by lamellae.

13. keypad security device as claimed in claim 12, wherein said guard plate comprises refractor and supporting member.

14. each described keypad security device in the claim as described above, wherein guard plate is fixed to described viewport with removably.

15. as each described keypad security device in the claim 1 to 13, wherein said guard plate is integrally formed with described viewport.

16. each described keypad security device in the claim as described above, wherein said outer cover is made by plastic material.

17. keypad security device as claimed in claim 16, wherein said outer cover is translucent to small part.

18. each described keypad security device in the claim as described above, the inside of wherein said outer cover to the small part veining to prevent that device attachment is on it.

19. each described keypad security device in the claim as described above, wherein said outer cover comprises at least is arranged to allow ambient light to enter the fenestra of described outer cover inside.

20. each described keypad security device in the claim as described above, wherein said outer cover comprises to be arranged to the wall of small part around described keyboard.

21. comprising, keypad security device as claimed in claim 20, wherein said outer cover be arranged to a plurality of walls of small part around described keyboard.

22. each described keypad security device in the claim as described above, wherein said guard plate remains in the framework that is mounted to described outer cover.

23. keypad security device as claimed in claim 22, wherein said framework can move relative to described outer cover.

24. keypad security device as claimed in claim 23, wherein said framework is can the pivot mode being mounted to described outer cover.

25. keypad security device as claimed in claim 23, wherein said framework slidably is mounted to described outer cover.

26. each described keypad security device in the claim as described above, wherein said outer cover is provided with the additional access aperture of aliging with described first handle hole.

27. keypad security device as claimed in claim 26, wherein said first hole is arranged at the front portion of described outer cover, and described additional access aperture is arranged at the rear portion of described outer cover.

28. each described keypad security device in the claim as described above, wherein said outer cover comprises the bottom of being arranged to hold keyboard equipment.

29. keypad security device as claimed in claim 28, wherein said bottom are provided with in order to described outer cover is mounted to the erecting device of installation component.

30. the ATM with keyboard and coin discharge, described ATM comprise as each described keypad security device in the claim 1 to 27.

31. ATM as claimed in claim 30, wherein, when being subordinated to claim 26 or claim 27, described additional access aperture alignment coin discharge.

32. the data card PIN input equipment point-of-sale terminal with keyboard, described PIN input equipment comprises as each described keypad security device in the claim 1 to 29.