CN105588825A - Thermotropic fluorescence detection equipment for latent fingerprints on paper - Google Patents
Thermotropic fluorescence detection equipment for latent fingerprints on paper Download PDFInfo
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- CN105588825A CN105588825A CN201610059536.XA CN201610059536A CN105588825A CN 105588825 A CN105588825 A CN 105588825A CN 201610059536 A CN201610059536 A CN 201610059536A CN 105588825 A CN105588825 A CN 105588825A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The invention provides thermotropic fluorescence detection equipment for latent fingerprints on paper. The thermotropic fluorescence detection equipment comprises thermotropic fluorescence heating equipment and observation photographing equipment, wherein a guide rail is fixedly arranged in an airtight tank; a movable objective table penetrates through one end of the airtight tank and is slidably inserted to the guide rail; two infrared heating devices are positioned above the guide rail; each infrared heating device is fixedly connected with two side walls of the airtight tank; the airtight tank is fixedly provided with a control device; the control device comprises a heating temperature controller, a heating time controller, a movable objective table stroke button and a power supply; the heating temperature controller is used for controlling heating temperature of the two infrared heating devices; the heating time controller is used for controlling the heating time of the two infrared heating devices; the power supply is used for supplying power to electric devices; the observation photographing equipment is used for performing fluorescence excitation on latent fingerprints on to-be-detected paper heated by the thermotropic fluorescence heating equipment and observing or photographing fluorescent fingerprints generated by excitation.
Description
Technical field
The present invention relates to diving hand print with perspiration thermic fluorescent inspection equipment on a kind of paper, belong to examination of material evidence technical field.
Background technology
Paper, as one of important medium of society Information Communication, is seen everywhere in daily life, existing in crimeField also often occurs, often can run into this type of sample in fingerprint displaying work. All the time, about diving on paperNearly all use chemical method processing to manifest at sweat fingerprint, for example: silver nitrate, ninhydrin, DFO, indenes diketoneManifest Deng chemistry, but these chemical reagent can cause certain pollution and destruction to sample paper more or less, outstandingIt is unfavorable for the paper sample of secret or anonymous pickup and need to keeps this class of material evidence original appearance to have particular/special requirement very muchCase, also can affect follow-up inspection of document work and the problem of tracing to the source of evidence to a certain extent, and these changesLearn reagent and how much all there is certain toxicity, can make the criminal technique personnel's that are engaged in for a long time verification of traces work healthBecome to threaten. In addition, for some the diving hand print with perspiration on the difficult object as heat-sensitive paper and toilet paper manifest also oneDirectly perplexing criminal technique personnel, to meet machine molten owing to having very coarse softness and containing thermo colour for this class objectThe characteristics such as agent is easy to change all do not obtain fingerprint displaying effect well always. Therefore, the diving hand print with perspiration on paper is enteredRow is quick, harmless, nontoxic inspection, receives countries in the world scientific research institution and researcher's concern, is also new in recent yearsAn emerging popular research direction.
Thermic fluorescent technique is a kind of for manifesting the fast and convenient, without chemical reagent and also of diving hand print with perspiration on paperCan manifest the non-destructive method that effect is supplemented mutually with multiple, there is important using value in examination of material evidence field.It manifests process is first under suitable temperature, after of short duration heating, to be placed in swashing of blue green light (wavelength is 415～510nm)Under hair ring border, observe by orange goggles, can show strong yellow fluorescence impression of the hand. Thermic fluorescent technique canManifest well the diving hand print with perspiration on all kinds of paper, it manifests glimmering not second to chemical reagent such as DFO, indenes diketone of effectLight effect, this technology can manifest the diving hand print with perspiration on complicated and dark-background paper, and in suitable heating-up temperatureAfterwards can produce good fingerprint fluorescent effect with heating under the time, fingerprint lines is clear coherent, nearly all can reachTo standard of perfection. The more important thing is, thermic fluorescent technique is not polluted and is damaged paper sample, and the whole process that manifests is to criminalTechnical staff is nontoxic, can also manifest well on the more special paper object of picture toilet paper and this class of heat-sensitive paperDiving hand print with perspiration. After manifesting, thermic fluorescent technique can also continue to use traditional chemical process for show to manifest, instant heatingThe first-selection that causes fluorescent technique and can become paper diving hand print with perspiration manifests processing method.
Research discovery, thermic fluorescent technique belongs to the novel process for show that can check diving hand print with perspiration on multiple paper, richRich common paper invisible fingerprints of sweat manifest program, and there is higher sensitivity, manifest process and do not need chemistry examinationThe participation of agent, can greatly simplify testing process and save inspection cost, simultaneously for the safety and environmental protection of working environment is madeContribution; As a kind of diving hand print with perspiration method of inspection of quick nondestructive, can apply in real case easily, butBe prior art to the comparatively not deep research of this technology, there is no a set of complete thermic fluorescent inspection equipment yet.
Summary of the invention
For the problems referred to above, the object of this invention is to provide one have higher sensitivity and in checkout procedure to criminalDiving hand print with perspiration thermic fluorescent inspection equipment on the nontoxic paper of technical staff.
For achieving the above object, the present invention takes following technical scheme: diving hand print with perspiration thermic fluorescent inspection on a kind of paperEquipment, is characterized in that, this thermic fluorescent inspection equipment comprises a thermic fluorescence firing equipment and an observation photographing device;Described thermic fluorescence firing equipment comprises a base, a moving stage, an infrared heating device and a control device,Described base top is slided and is plugged the described moving stage for placing paper to be checked, is positioned at described movable object-carrying stageThe described base top of top is set up described infrared heating device, and described base end is fixedly installed described control device;Described control device comprises a travel frequency controller, a heating and temperature control device and a power supply, described travel frequency controlDevice processed is for controlling the move mode of described moving stage, and described heating and temperature control device is used for controlling described infrared addingThe mode of heating of device, described power supply is for being connected to described travel frequency controller, adding hot temperature with extraneous power supply unitDegree controller and infrared heating device are powered; Described observation photographing device is used for establishing through described thermic fluorescence heatingDiving hand print with perspiration on paper to be checked after standby heating carry out fluorescence excitation and to excite the fluorescence impression of the hand of generation observe orTake pictures.
Preferably, described observation photographing device comprises an airtight cavity, and described airtight cavity two ends arrange respectively a gear door,One section, the top level of described airtight cavity, another section is downward-sloping, and the top horizontal segment of described airtight cavity arranges oneCamera lens interface or an optical filtering interface, the top tilting section of described airtight cavity arranges a multiband light source interface.
Preferably, on described movable object-carrying stage, also place the netted carrier that an employing iron wire is woven into.
Preferably, a radiator fan is all set in described infrared heating device and control device, on described control device, goes backArrange one for opening or close the switch of described radiator fan.
For achieving the above object, the present invention can also take following technical scheme: on a kind of paper, diving hand print with perspiration thermic is glimmeringOptical check equipment, is characterized in that, this thermic fluorescent inspection equipment comprises a thermic fluorescence firing equipment and an observation batAccording to equipment; Described thermic fluorescence firing equipment comprises an airtight casing, a guide rail, a moving stage, two infrared addingHot charging is put and a control device; In described airtight casing, be fixedly installed described guide rail, described in described moving stage passesSlide and be plugged on described guide rail in airtight casing one end, be positioned at described guide rail top arrange two described in infrared heating device,Described in each, infrared heating device and described airtight box bilateral wall are fixed, and described airtight casing is fixedly installed described controlDevice, described control device comprises a heating and temperature control device, a heat time controller, a moving stage strokeButton and a power supply, described heating and temperature control device is used for controlling the heating-up temperature of infrared heating device described in two, described inHeat time controller is for controlling the heat time of infrared heating device described in two, described moving stage stroke buttonFor opening or close described moving stage motion, described power supply is for being connected to described heating with extraneous power supply unitTemperature controller, heat time controller and infrared heating device are powered; Described observation photographing device is used for warpDiving hand print with perspiration on paper to be checked after the heating of described thermic fluorescence firing equipment carries out fluorescence excitation and to exciting generationFluorescence impression of the hand is observed or is taken pictures.
Preferably, described observation photographing device comprises an airtight cavity, and described airtight cavity two ends arrange respectively a gear door,One section, the top level of described airtight cavity, another section is downward-sloping, and the top horizontal segment of described airtight cavity arranges oneCamera lens interface or an optical filtering interface, the top tilting section of described airtight cavity arranges one for connecting paper to be checkedThe diving hand print with perspiration of opening carries out the multiband light source interface of fluorescence excitation alternative light source.
Preferably, the closed box end of body of corresponding described guide rail one end arranges a spill opening, described moving stage warpDescribed spill opening enters described airtight cavity and slides and is plugged on described guide rail, the outer end of described moving stageOne baffle plate corresponding with described spill opening is set.
Preferably, described airtight casing top also arranges a watch window, and described watch window place is embedded heat resistant glass.
Preferably, described airtight casing is also fixedly installed more than one radiator fan, on described airtight casing, also arrangesHave one for opening or close the switch of described radiator fan.
The present invention is owing to taking above technical scheme, and it has the following advantages: 1, the present invention includes the heating of thermic fluorescence and establishStandby and observe photographing device, thermic fluorescence firing equipment, for paper to be checked is heated, is observed photographing device and is used forDiving hand print with perspiration on paper to be checked after thermic fluorescence firing equipment heating is carried out to fluorescence excitation and to exciting generationFluorescence impression of the hand is observed or is taken pictures, and therefore the present invention can greatly simplify testing process and save inspection cost, wholeTesting process is not polluted and is damaged paper sample, and whole to manifest process nontoxic to criminal technique personnel, is working environmentSafety and environmental protection contribute. 2, on moving stage of the present invention, can also be placed with adopt iron wire be woven into forPlace the netted carrier of paper to be checked, therefore can isolate paper to be checked, avoid the heat insulation iron plate with moving stageDirectly contact, prevents that paper is burned by high temperature iron plate. 3, the airtight casing top of thermic fluorescence firing equipment of the present inventionOne watch window is also set, and watch window place is embedded heat resistant glass, and staff can observe at any time by watch windowTo the heating state of paper, occur that as run into special circumstances need to stop heating at once, can be capable by moving stageJourney button stops heating, and moving stage also can exit at once simultaneously. 4, observation photographing device of the present invention can be at any timeGround, provide dark field environment observe or take pictures easily, can be in the criminal-scene extraction of directly taking pictures. The present inventionCan be widely used in the detection of diving hand print with perspiration on paper.
Brief description of the drawings
Fig. 1 is the thermic fluorescence firing equipment structural representation of the embodiment of the present invention one;
Fig. 2 is the structural representation that the present invention observes photographing device;
Fig. 3 is the thermic fluorescence firing equipment structural representation of the embodiment of the present invention two.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is carried out to detailed describing. But should be appreciated that only the providing for more of accompanying drawingUnderstand well the present invention, they not should be understood to limitation of the present invention.
Embodiment mono-:
As shown in Figure 1 and Figure 2, on the paper that the present embodiment provides, diving hand print with perspiration thermic fluorescent inspection equipment, comprises oneThermic fluorescence firing equipment 1 and one is observed photographing device 2, and thermic fluorescence firing equipment 1 is for carrying out paper to be checkedHeating, observes photographing device 2 for the diving hand print with perspiration on the paper to be checked to after 1 heating of thermic fluorescence firing equipmentCarry out fluorescence excitation and the fluorescence impression of the hand that excites generation is observed or taken pictures.
Thermic fluorescence firing equipment 1 comprises a rectangular base 10, a moving stage 12, an infrared heating device 13With a control device 14, in infrared heating device 13 and control device 14, be provided with a radiator fan 15. Rectangular baseSeat 10 tops arrange a groove 11, and the interior slip of groove 11 plugs the moving stage 12 for placing paper to be checked, positionSet up the infrared heating device 13 of bottom opening in rectangular base 1 top of movable object-carrying stage 12 tops, infrared addingHot charging is put the 13 interior more than one infrared heaters that can be placed with for paper to be checked is heated. Rectangular base1 front end is fixedly installed control device 14, is provided with a travel frequency controller 141, a heating on control device 14Temperature controller 142 and a power supply 143; Travel frequency controller 141 is for controlling the frequently mobile of moving stage 12Rate and moving direction; Heating and temperature control device 142 is for controlling the heating of infrared heating device 13 interior infrared heatersNumber and heating-up temperature, and effectively control temperature, while exceeding default maximum temperature for heating temperature is instantaneous, pass through selfWarning device report to the police, to be checked in can also the display screen monitoring heating process by heating and temperature control device 142The real time temperature of paper; Power supply 143 is for being connected to travel frequency controller 141 with extraneous power supply unit, adding hot temperatureThe electricity consumption devices such as degree controller 142, infrared heater and radiator fan 15 are powered; One end of control device 14Also arrange one for opening or close the switch 16 of radiator fan 15.
In a preferred embodiment, observe the airtight cavity 21 that photographing device 2 can adopt black material to make,The front-end and back-end of airtight cavity 21 arrange respectively one for sending into or take out paper to be checked and for adjusting paper to be checkedThe gear door 22 of tension position, in order to facilitate staff's switch gear door 22, is fixedly installed leader 221 on each gear door 22,One section, the top level of airtight cavity 21, another section is downward-sloping, and the top horizontal segment of airtight cavity 21 arranges a phaseMachine lens interface 23 or an optical filtering interface (not shown), in the time only needing to observe the paper to be checked of heating,Optical filtering interface can adopt rectangle interface that rectangle optical filtering is installed, the fluorescence phase that optical filtering and paper to be checked exciteCoupling, simultaneously for filtering exciting light; In the time that needs are taken pictures to heating paper to be checked, adopt camera lens interface23 closely connect camera lens, and camera lens is provided with the optical filtering matching with fluorescence foremost, wherein, and camera mirrorInterface 23 can adopt round thread structure that can fixed camera camera lens; The top tilting section of airtight cavity 21 is establishedPut a multiband light source interface 24, multiband light source interface 24 is for closely connecting for hand that the sweat of paper to be checked is divedSeal carries out the alternative light source of fluorescence excitation, and the wavelength of alternative light source can be 415～510nm.
In a preferred embodiment, on movable object-carrying stage 12, can also place netted that an employing iron wire is woven intoCarrier.
The diving hand print with perspiration thermic fluorescent inspection equipment on the paper that adopts the present embodiment that describes in detail below carries out paper to be checkedThe detailed process detecting:
1, paper to be checked is carried out to heat treated:
Connect power supply 143, open switch 16, equipment starts to enter duty, and radiator fan 15 is started working. WillThe paper to be checked that leaves diving hand print with perspiration lies in the netted carrier centre position of moving stage 12, staff coupleTravel frequency controller 141 and heating and temperature control device 142 carry out respectively setting parameter, and infrared heater adds in theoryHot temperature degree is higher, and moving stage travel frequency (being speed) is faster, wherein, and the ginseng of travel frequency controller 141Number comprises travel frequency and moving direction, the heating-up temperature that the parameter of heating and temperature control device 142 is infrared heater,Temperature range is at 100～230 DEG C; Travel frequency controller 141 is controlled moving stage 12 and is carried out according to setup parameterMobile, heating and temperature control device 142 is controlled the heating-up temperature of infrared heater, can also be by adding in heating processThe display screen of hot temperature controller 142 monitors the real-time heating-up temperature of paper surface to be checked, and moving stage 12 is movingThe arrival original position that moves around under the control of dynamic frequency controller 141 stops automatically, and now infrared heater stopsOnly heating, completes the heating of the paper to be checked that leaves diving hand print with perspiration.
2, the paper to be checked of heating is observed and is taken pictures:
Alternative light source is closely connected on multiband light source interface 24, the front end of camera lens is installed one orangeOptical filtering (matching with paper to be checked), and camera lens is fixed on camera lens interface 23, phase mechanical coke adjustedDistance; Open the gear door 22 of airtight cavity 21 both sides, will be put in airtight cavity 21 through the paper to be checked of heat treated,Close gear door 22 and open alternative light source and irradiate paper to be checked and take pictures, obtain yellow fluorescence impression of the hand.
Embodiment bis-:
As shown in Figure 2 and Figure 3, on the paper that the present embodiment provides, diving hand print with perspiration thermic fluorescent inspection equipment, comprises oneThermic fluorescence firing equipment 3 and one is observed photographing device 2, observes photographing device 2 and takes pictures and establish with the observation of embodiment 1Standby 2 structures are just the same, do not repeat them here, and below the structure of thermic fluorescence firing equipment 3 described.
Thermic fluorescence firing equipment 3 comprises an airtight casing 30, a guide rail 31, a moving stage 32, two infraredHeater 33, more than one radiator fan 34 and a control device, wherein, in each infrared heating device 33Can be placed with the more than one infrared heater for paper to be checked is heated;
In airtight casing 30, be fixedly installed guide rail 31, the front end of the airtight casing 31 of corresponding guide rail 31 one end arranges oneSpill opening 311, moving stage 32 slides and is plugged on guide rail 31 through spill opening 311, moving stage 32End one baffle plate 321 corresponding with spill opening 311 is set, be positioned at guide rail 31 tops and parallel with guide rail 31Two infrared heating devices 33 are set, and each infrared heating device 33 is respectively by fixture and airtight casing 31 both sidesWall is fixed, and the interval, rear end of airtight casing 31 arranges two radiator fans 34; The top of airtight casing 31 is fixedly installed controlDevice processed, control device comprises that a heating and temperature control device 35, a heat time controller 36, a moving stage are capableJourney button 37, a switch 38 and a power supply 39, heating and temperature control device 35 is for controlling two infrared heating devices 33Heating-up temperature, heat time controller 36 is for controlling the heat time of two infrared heating devices 33, mobile loadingPlatform stroke button 37 is for opening or cutting out moving stage 32 and move, and switch 38 is for opening or cut out radiator fan34, the side of airtight casing 30 is also provided with power supply 39 for being connected to heating and temperature control device with extraneous power supply unit35, the electricity consumption device such as heat time controller 36, infrared heating device 33 and radiator fan 34 is powered.
In a preferred embodiment, airtight casing 30 tops arrange a watch window 4, and watch window 4 places are embeddedHeat resistant glass.
Describe the concrete use procedure of diving hand print with perspiration thermic fluorescent inspection equipment on the paper of the present embodiment below in detail:
1, paper to be checked is carried out to heat treated:
Connect power supply 39, open switch 38, equipment starts to enter duty, and radiator fan 34 is started working, willThe paper to be measured that leaves diving hand print with perspiration lies in the netted carrier centre position on moving stage 12, staffRespectively heating and temperature control device 35 and heat time controller 36 are carried out to setting parameter, in theory infrared heating device33 heating-up temperatures are higher, and the heat time is shorter, and setting parameter comprises the heating-up temperature of infrared heating device 33 and infraredThe heat time of heater 33, temperature range is at 100～230 DEG C, sets after all parameters by moving stageStroke button 37 makes moving stage 32 automatically be entered in airtight casing 30 and be heated by guide rail 31, is enteringIn the process of row heating, can also monitor by the display screen of heating and temperature control 35 the real-time heating of paper surface to be checkedTemperature, the heat time arrive be infrared heating device 33 automatically stop heating simultaneously moving stage skid off airtight casing30. In the process heating, can also carry out Real Time Observation paper by the watch window 4 at airtight casing 30 topsThe heating state of opening, can press moving stage stroke button 37 and can stop heating and make mobile year as noted abnormalitiesThing platform 32 skids off airtight casing 30.
2, the paper to be checked of heating is observed and is taken pictures:
Alternative light source is closely connected on multiband light source interface 24, the front end of camera lens is installed one orangeOptical filtering (matching with paper to be checked), and camera lens is fixed on camera lens interface 23, phase mechanical coke adjustedDistance; Open the gear door 22 of airtight cavity 21 both sides, will be put in airtight cavity 21 through the paper to be checked of heat treated,Close gear door 22 and open alternative light source and irradiate paper to be checked and take pictures, obtain yellow fluorescence impression of the hand.
The various embodiments described above are only for illustrating the present invention, and wherein the structure of each parts, connected mode and manufacture craft etc. are allCan change to some extent, every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should notGet rid of outside protection scope of the present invention.
Claims (9)
1. a diving hand print with perspiration thermic fluorescent inspection equipment on paper, is characterized in that, this thermic fluorescent inspection equipment bagDraw together a thermic fluorescence firing equipment and and observe photographing device;
Described thermic fluorescence firing equipment comprises a base, a moving stage, an infrared heating device and a control dressPut, described base top is slided and is plugged the described moving stage for placing paper to be checked, is positioned at described mobile loadingThe described base top of platform top is set up described infrared heating device, and described base end is fixedly installed described control dressPut; Described control device comprises a travel frequency controller, a heating and temperature control device and a power supply, described frequently mobileRate controller is for controlling the move mode of described moving stage, and described heating and temperature control device is used for controlling described redThe mode of heating of add-on device, described power supply is for being connected to described travel frequency controller, adding with extraneous power supply unitHot temperature controller and infrared heating device are powered; Described observation photographing device is used for adding through described thermic fluorescenceDiving hand print with perspiration on paper to be checked after hot equipment heating carries out fluorescence excitation and the fluorescence impression of the hand that excites generation is seenExamine or take pictures.
2. diving hand print with perspiration thermic fluorescent inspection equipment on a kind of paper as claimed in claim 1, is characterized in that instituteState observation photographing device and comprise an airtight cavity, described airtight cavity two ends arrange respectively a gear door, described airtight cavityOne section, top level, another section is downward-sloping, the top horizontal segment of described airtight cavity arranges a camera lens interfaceOr an optical filtering interface, the top tilting section of described airtight cavity arranges a multiband light source interface.
3. diving hand print with perspiration thermic fluorescent inspection equipment on a kind of paper as claimed in claim 1 or 2, is characterized in that,On described movable object-carrying stage, also place the netted carrier that an employing iron wire is woven into.
4. diving hand print with perspiration thermic fluorescent inspection equipment on a kind of paper as claimed in claim 1 or 2, is characterized in that,One radiator fan is all set in described infrared heating device and control device, on described control device, also arranges one for openingOpen or close the switch of described radiator fan.
5. a diving hand print with perspiration thermic fluorescent inspection equipment on paper, is characterized in that, this thermic fluorescent inspection equipment bagDraw together a thermic fluorescence firing equipment and and observe photographing device;
Described thermic fluorescence firing equipment comprises an airtight casing, a guide rail, a moving stage, two infrared heating dressesPut and a control device; In described airtight casing, be fixedly installed described guide rail, described moving stage is through described airtightSlide and be plugged on described guide rail in casing one end, be positioned at described guide rail top arrange two described in infrared heating device, eachDescribed infrared heating device and described airtight box bilateral wall are fixed, and described airtight casing is fixedly installed described control device,Described control device comprise a heating and temperature control device, a heat time controller, a moving stage stroke button andOne power supply, described heating and temperature control device is for controlling the heating-up temperature of infrared heating device described in two, when described heatingBetween controller for controlling heat time of infrared heating device described in two, described moving stage stroke button is used for outOpen or close described moving stage motion, described power supply is for being connected to described heating-up temperature control with extraneous power supply unitDevice processed, heat time controller and infrared heating device are powered; Described observation photographing device is for to through described warmCause that diving hand print with perspiration on the paper to be checked after fluorescence firing equipment heating carries out fluorescence excitation and to exciting the fluorescence hand of generationSeal is observed or is taken pictures.
6. diving hand print with perspiration thermic fluorescent inspection equipment on a kind of paper as claimed in claim 5, is characterized in that instituteState observation photographing device and comprise an airtight cavity, described airtight cavity two ends arrange respectively a gear door, described airtight cavityOne section, top level, another section is downward-sloping, the top horizontal segment of described airtight cavity arranges a camera lens interfaceOr an optical filtering interface, the top tilting section of described airtight cavity arranges one for connecting the diving hand print with perspiration to paper to be checkedCarry out the multiband light source interface of fluorescence excitation alternative light source.
7. diving hand print with perspiration thermic fluorescent inspection equipment on a kind of paper as described in claim 5 or 6, is characterized in that,The closed box end of body of corresponding described guide rail one end arranges a spill opening, and described moving stage is through described spill openingEnter described airtight cavity and slide be plugged on described guide rail, the outer end of described moving stage arrange one with described inThe baffle plate that spill opening is corresponding.
8. diving hand print with perspiration thermic fluorescent inspection equipment on a kind of paper as described in claim 5 or 6, is characterized in that,Described airtight casing top also arranges a watch window, and described watch window place is embedded heat resistant glass.
9. diving hand print with perspiration thermic fluorescent inspection equipment on a kind of paper as described in claim 5 or 6, is characterized in that,Described airtight casing is also fixedly installed more than one radiator fan, is also provided with one for opening on described airtight casingOr close the switch of described radiator fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610059536.XA CN105588825A (en) | 2016-01-28 | 2016-01-28 | Thermotropic fluorescence detection equipment for latent fingerprints on paper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610059536.XA CN105588825A (en) | 2016-01-28 | 2016-01-28 | Thermotropic fluorescence detection equipment for latent fingerprints on paper |
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| CN105588825A true CN105588825A (en) | 2016-05-18 |
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| CN201610059536.XA Pending CN105588825A (en) | 2016-01-28 | 2016-01-28 | Thermotropic fluorescence detection equipment for latent fingerprints on paper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113940669A (en) * | 2021-11-18 | 2022-01-18 | 中国政法大学 | Full-paper sweat latent fingerprint thermal fluorescence display equipment and method |
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Application publication date: 20160518 |