CN205786319U - A kind of multiband excites phosphorimager - Google Patents
A kind of multiband excites phosphorimager Download PDFInfo
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- CN205786319U CN205786319U CN201620049076.8U CN201620049076U CN205786319U CN 205786319 U CN205786319 U CN 205786319U CN 201620049076 U CN201620049076 U CN 201620049076U CN 205786319 U CN205786319 U CN 205786319U
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- light
- source system
- multiband
- phosphorimager
- detector
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Abstract
During a kind of criminal investigation, find and extract the multiband circulation of trace evidence to excite phosphorimager, belong to police criminal detection apparatus field.The feature of this imager is: include that one can be launched seen from multiple different-waveband or the light-source system of black light, one imaging that different-waveband can be responded or non-imaged detector, one isochronous controller that light-source system and detector can be synchronized and driver, and control isochronous controller and driver control analyzer data can being analyzed.This imager can realize light intensity, spectrum, the cycle is adjustable, with low cost, and switching speed is fast, and reliability is high, and the life-span is long, gathers field at material evidence and has good application prospect.
Description
Technical field
This utility model relates to a kind of criminal scene and the field such as luminescence and image acquisition, the structure of the most high efficiency detecting site special equipment.
Background technology
At present in detecting site works, need various vestiges are carried out site inspection and evidence obtaining.Material evidence itself can be polluted or destroy by physics and chemical method mostly that used when finding and extract vestige evidence, and the mode utilizing various optical instrument to extract trace evidence in recent years is the most progressively applied.Specific light-source system equipment is utilized can effectively to excite the primary fluorescence of the trace material evidences such as scene of a crime left fingerprints, footprint, bloodstain and fiber, different trace evidence is made to respond under special wavelength light irradiates, being easy to discovery and the search of on-the-spot trace evidence, high degree improves presentation capability and the acquisition rate of on-the-spot latent trace material evidence.Utilizing the feature that optical check is highly sensitive, do not damage sample, current Forensic Science light-source system equipment purposes in examination of material evidence is identified expands to the fields such as body fluid inspection, ammunition residue inspection from fingerprint examination, the inspection of document, textile inspection.Good material evidence photograph light-source system is for solving to leave on potential and difficult object the extraction of trace evidence and preserving and also have very important value, from the luminous intensity distribution photograph of visible ray, colour photography, Polarization photography, to the infrared external reflection of special photograph, ultraviolet reflectance, Infrared fluorescence, Ultraluminescence photograph, may be by different light-source systems and obtain good inspection and take pictures effect.
It is limited to light-source system characteristic and the restriction of material evidence extracting mode, ability and efficiency currently with optical means extraction material evidence are the most not high enough, and real work is becoming stricter to Public Security Organs's Forensic Science personnel on site's exploration standardsization and scientific requirement, the performance to light-source system that updates of high-quality reconnaissance at criminal scene standard and inspection equipment it is also proposed higher requirement, the accuracy that the most existing Forensic Science light-source system equipment exists is low, volume is big, the problems such as practicality is the strongest also highlight, become the major issue of restriction Forensic Science development.Traditional Forensic Science light-source system needs to be equipped with huge power-supply system, light-source system system (Halogen light, fluorescent lamp, high-pressure mercury lamp or xenon lamp), filter system (optical filtering camera lens optical filter) etc., therefore this type of light-source system equipment the most generally have cannot meet the option demand of light, light extraction efficiency is low, output light intensity is inadequate, excite the observability of fluorescence compared with the shortcoming such as weak, the life-span is short, caloric value is big, power consumption cost high, maintenance cost is high, causes puzzlement greatly to basic unit personnel in charge of the case.Light emitting diode (being called for short LED) has efficiency height, brightness height, photochromic single, with low cost, switching speed is fast, reliability is high, life-span length, all solid state feature such as the most broken, its light-source system capacity usage ratio is the highest more than 50%, only need to select the LED light source system combination in any of different wave length for different condition, and spectrum can cover Red, yellow, green, blue, purple and ultraviolet range, can realize light intensity, spectrum, the cycle is adjustable, gathers field at material evidence and has the biggest development potentiality.
Utility model content
The utility model proposes a kind of multiband and excite phosphorimager, comprising:
Can launch seen from multiple different-waveband or the semiconductor light origin system of black light for one, one imaging that different-waveband can be responded or non-imaged detector, one controller that light-source system and detector can be operated and driver, and control controller and driver control analyzer data can being analyzed.
Described multiband excites phosphorimager, the semiconductor light origin system of multiple different-waveband can be comprised, these semiconductor light source system integrations are in a single light-source system structure, can control to launch the monochromatic light of the most infrared different-waveband of ultraviolet by circuit, its luminous intensity is more than the minimum light intensity required for sample；The wave band of described light-source system and intensity controllable and switching.
The described light-source system launching multiband LED, its light-source system wave band includes ultraviolet, visible ray, the multiple LED luminescence band such as infrared, light-source system includes the components and parts such as optical lens, reflecting mirror, blooming, make the hot spot uniformity being irradiated on sample good, light intensity is suitable, and can be controlled its optical electivity by the output of regulation driver and controller, be irradiated light intensity etc..
Described detector, can also use non-imaged mode to use imaging mode, and can control its parameter such as the time gathering information and cycle by driver and controller.
Described detector, it is also possible to include multiple optical filtering, light filter to strengthen observing capacity, and can either manually or by driver and controller control its filter, the operating position of light filter.
Described multiband LED light source system and detector can be used separately, it is also possible to integrated in one apparatus.
Described control analyzer the detector under different lighting conditions can be gathered image or information is compared, to obtain the on-the-spot mark information such as fingerprint, footprint, bloodstain.
Multiband described in the utility model is used to excite phosphorimager, photochromic single, fast response time, spectrum can be switched fast, cost can be substantially reduced, improve efficiency and ability that material evidence extracts.
Accompanying drawing explanation
Fig. 1 is the structural representation of the criminal investigation optical device of this utility model embodiment.
Specific embodiment
Illustrate that the technical solution of the utility model, protection domain of the present utility model are not limited to following embodiment with embodiment below.
Criminal investigation optical device as shown in Figure 1, including light-source system 1, sample 3, survey meter 2, controller and driver 6, and control analyzer 7.Described light-source system 1 includes LED light source and corresponding optical system, and described LED light source comprises the LED chip that can independently control of multiple wave band, can comprise from ultraviolet to the LED chip of infrared any wave band；LED light source is irradiated to light 4 on sample 3, forms the hot spot of suitable intensity and size, to excite the fluorescence 5 of sample 3, or strengthens the observability of vestige on sample 3；Optical system includes optical lens, reflecting mirror, blooming so that the hot spot uniformity being irradiated on sample 3 is good, and light intensity is suitable；Detector 2 is for observing the fluorescence 5 sent on sample 3 and the image formed thereof；Light-source system 1 and detector 2 can be approximately perpendicular, can also be at the homonymy of sample 3, can also be staggered relatively in the both sides of sample 3, distance and the angle of its distance sample 3 can be adjusted according to sample, environment and the intensity of light source, so that detector 2 is obtained in that mark image clearly.Controlled and driven light-source system 1 and the parameter of detector 2 by controller and driver 6, the data that control analyzer 7 provides according to light-source system, detector and controller and driver 6 are analyzed, it is thus achieved that analysis result.
First sample 3 is placed or is determined the position of sample 3 during use, open light-source system 1, select to use suitable wave band or band combination, the image of corresponding sample 3 is observed by detector 2, user can observe the indiscoverable vestige of naked eyes on detector 2 or in control analyzer 7, and in the case of not destorying the scene, directly find and search vestige, do not pollute and destroy.By adjusting light-source system 1 and detector 2 position relative to sample 3, the lossless electronic image obtaining trace evidence can be facilitated.
This multiband excites phosphorimager can be assembled in an angle and distance control frame for movement, material evidence identification experiment room works, two parts can also be used at the scene to carry out joint test, two parts can also be attached in a direction, form illumination and the portable instrument of detection integration.Simple to operate, easy to use, it is suitable for onsite application.
Claims (7)
1. a multiband excites phosphorimager, described imager includes: can launch seen from multiple different-waveband or the light-source system (1) of black light for one, one imaging that different-waveband can be responded or non-imaged detector (2), one isochronous controller that light-source system and detector are synchronized and driver (6), and control isochronous controller and driver the control analyzer (7) that data are analyzed；The wave band of described light-source system and intensity controllable and switching.
Multiband the most according to claim 1 excites phosphorimager, it is characterized in that described light-source system (1) comprises multiple LED light source, described LED light source launches the light of the most infrared different-waveband of ultraviolet, and its luminous intensity is more than the minimum luminous intensity required for sample (3).
Multiband the most according to claim 1 excites phosphorimager, it is characterized in that described light-source system (1) also includes optical lens, reflecting mirror, blooming, and the luminous intensity of light-source system (1) can be controlled by controller and driver (6).
Multiband the most according to claim 1 excites phosphorimager, it is characterized in that described detector (2) controls its detectivity by controller and driver (6).
Multiband the most according to claim 1 excites phosphorimager, it is characterized in that described detector (2) includes multiple optical filtering and/or light filter.
Multiband the most according to claim 1 excites phosphorimager, it is characterized in that described light-source system (1) and detector (2) are integrated in one apparatus.
Multiband the most according to claim 1 excites phosphorimager, it is characterized in that described control analyzer (7) gathers image or information to the detector under different lighting conditions and compares, to obtain on-the-spot mark information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620049076.8U CN205786319U (en) | 2016-01-20 | 2016-01-20 | A kind of multiband excites phosphorimager |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620049076.8U CN205786319U (en) | 2016-01-20 | 2016-01-20 | A kind of multiband excites phosphorimager |
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| Publication Number | Publication Date |
|---|---|
| CN205786319U true CN205786319U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620049076.8U Expired - Fee Related CN205786319U (en) | 2016-01-20 | 2016-01-20 | A kind of multiband excites phosphorimager |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641847A (en) * | 2017-01-20 | 2017-05-10 | 苏州晓松科技开发有限公司 | LED (Light Emitting Diode) multispectral footprint exploration light source |
| CN107401690A (en) * | 2017-07-24 | 2017-11-28 | 深圳盈朗照明有限公司 | Light source assembly and footprint search equipment |
| CN108226104A (en) * | 2016-12-22 | 2018-06-29 | 中国人民公安大学 | The LED phosphorimagers that a kind of long wave inhibits |
-
2016
- 2016-01-20 CN CN201620049076.8U patent/CN205786319U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226104A (en) * | 2016-12-22 | 2018-06-29 | 中国人民公安大学 | The LED phosphorimagers that a kind of long wave inhibits |
| CN106641847A (en) * | 2017-01-20 | 2017-05-10 | 苏州晓松科技开发有限公司 | LED (Light Emitting Diode) multispectral footprint exploration light source |
| CN106641847B (en) * | 2017-01-20 | 2019-09-24 | 苏州晓松科技开发有限公司 | A kind of multispectral footprint trace of LED reconnoitres light source |
| CN107401690A (en) * | 2017-07-24 | 2017-11-28 | 深圳盈朗照明有限公司 | Light source assembly and footprint search equipment |
| CN107401690B (en) * | 2017-07-24 | 2020-06-30 | 广州腾德同普光电科技有限公司 | Light source module and footprint search apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20180120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |